diff --git a/compiler/crates/common/src/feature_flags.rs b/compiler/crates/common/src/feature_flags.rs
index 262fce22a159c..aa9bbfcb776a6 100644
--- a/compiler/crates/common/src/feature_flags.rs
+++ b/compiler/crates/common/src/feature_flags.rs
@@ -76,6 +76,10 @@ pub struct FeatureFlags {
     /// Enforce strict flavors for relay resolvers and disallow mixing flavors
     #[serde(default)]
     pub relay_resolvers_enable_strict_resolver_flavors: FeatureFlag,
+
+    /// Allow legacy verbose resolver syntax
+    #[serde(default)]
+    pub relay_resolvers_allow_legacy_verbose_syntax: FeatureFlag,
 }
 
 #[derive(Debug, Deserialize, Clone, Serialize)]
diff --git a/compiler/crates/relay-compiler/src/docblocks.rs b/compiler/crates/relay-compiler/src/docblocks.rs
index 70dd5001e1c87..e559685f76065 100644
--- a/compiler/crates/relay-compiler/src/docblocks.rs
+++ b/compiler/crates/relay-compiler/src/docblocks.rs
@@ -82,6 +82,9 @@ fn parse_source(
             enable_strict_resolver_flavors: &project_config
                 .feature_flags
                 .relay_resolvers_enable_strict_resolver_flavors,
+            allow_legacy_verbose_syntax: &project_config
+                .feature_flags
+                .relay_resolvers_allow_legacy_verbose_syntax,
         },
     )?;
     maybe_ir
diff --git a/compiler/crates/relay-compiler/tests/compile_relay_artifacts/mod.rs b/compiler/crates/relay-compiler/tests/compile_relay_artifacts/mod.rs
index b6578c7cd73c4..961a995c01839 100644
--- a/compiler/crates/relay-compiler/tests/compile_relay_artifacts/mod.rs
+++ b/compiler/crates/relay-compiler/tests/compile_relay_artifacts/mod.rs
@@ -120,6 +120,7 @@ pub async fn transform_fixture(fixture: &Fixture<'_>) -> Result<String, String>
             .contains("# enable_resolver_normalization_ast"),
         enable_schema_resolvers: false,
         relay_resolvers_enable_strict_resolver_flavors: FeatureFlag::Disabled,
+        relay_resolvers_allow_legacy_verbose_syntax: FeatureFlag::Disabled,
     };
 
     let default_project_config = ProjectConfig {
diff --git a/compiler/crates/relay-compiler/tests/compile_relay_artifacts_with_custom_id/mod.rs b/compiler/crates/relay-compiler/tests/compile_relay_artifacts_with_custom_id/mod.rs
index aea4b22ab3bbc..13784bdae0257 100644
--- a/compiler/crates/relay-compiler/tests/compile_relay_artifacts_with_custom_id/mod.rs
+++ b/compiler/crates/relay-compiler/tests/compile_relay_artifacts_with_custom_id/mod.rs
@@ -98,6 +98,7 @@ pub async fn transform_fixture(fixture: &Fixture<'_>) -> Result<String, String>
         enable_resolver_normalization_ast: false,
         enable_schema_resolvers: false,
         relay_resolvers_enable_strict_resolver_flavors: FeatureFlag::Disabled,
+        relay_resolvers_allow_legacy_verbose_syntax: FeatureFlag::Disabled,
     };
 
     let default_schema_config = SchemaConfig::default();
diff --git a/compiler/crates/relay-docblock/src/docblock_ir.rs b/compiler/crates/relay-docblock/src/docblock_ir.rs
index 2a02b627c3c88..2fd414c7340cc 100644
--- a/compiler/crates/relay-docblock/src/docblock_ir.rs
+++ b/compiler/crates/relay-docblock/src/docblock_ir.rs
@@ -55,9 +55,9 @@ use crate::ir::WeakObjectIr;
 use crate::untyped_representation::AllowedFieldName;
 use crate::untyped_representation::UntypedDocblockRepresentation;
 use crate::DocblockIr;
+use crate::LegacyVerboseResolverIr;
 use crate::On;
 use crate::ParseOptions;
-use crate::RelayResolverIr;
 
 pub(crate) fn parse_docblock_ir(
     project_name: ProjectName,
@@ -97,7 +97,7 @@ pub(crate) fn parse_docblock_ir(
     };
     let parsed_docblock_ir = match resolver_field {
         IrField::UnpopulatedIrField(unpopulated_ir_field) => {
-            DocblockIr::RelayResolver(parse_relay_resolver_ir(
+            let legacy_verbose_resolver = parse_relay_resolver_ir(
                 &mut fields,
                 definitions_in_file,
                 description,
@@ -106,7 +106,35 @@ pub(crate) fn parse_docblock_ir(
                 unpopulated_ir_field,
                 parse_options,
                 source_hash,
-            )?)
+            )?;
+
+            let field_name = format!(
+                "{}.{}",
+                legacy_verbose_resolver.on.type_name(),
+                legacy_verbose_resolver.field.name.value
+            )
+            .intern();
+
+            if !parse_options
+                .allow_legacy_verbose_syntax
+                .is_enabled_for(field_name)
+            {
+                match legacy_verbose_resolver.on {
+                    On::Type(field) => {
+                        return Err(vec![Diagnostic::error(
+                            IrParsingErrorMessages::UnexpectedOnType { field_name },
+                            field.key_location,
+                        )]);
+                    }
+                    On::Interface(field) => {
+                        return Err(vec![Diagnostic::error(
+                            IrParsingErrorMessages::UnexpectedOnInterface { field_name },
+                            field.key_location,
+                        )]);
+                    }
+                }
+            }
+            DocblockIr::LegacyVerboseResolver(legacy_verbose_resolver)
         }
         IrField::PopulatedIrField(populated_ir_field) => {
             if populated_ir_field.value.item.lookup().contains('.') {
@@ -165,7 +193,7 @@ fn parse_relay_resolver_ir(
     _resolver_field: UnpopulatedIrField,
     parse_options: &ParseOptions<'_>,
     source_hash: ResolverSourceHash,
-) -> DiagnosticsResult<RelayResolverIr> {
+) -> DiagnosticsResult<LegacyVerboseResolverIr> {
     let root_fragment =
         get_optional_populated_field_named(fields, AllowedFieldName::RootFragmentField)?;
     let field_name =
@@ -215,7 +243,7 @@ fn parse_relay_resolver_ir(
 
     validate_field_arguments(&field_definition_stub.arguments, location.source_location())?;
 
-    Ok(RelayResolverIr {
+    Ok(LegacyVerboseResolverIr {
         live: get_optional_unpopulated_field_named(fields, AllowedFieldName::LiveField)?,
         on,
         root_fragment: root_fragment
@@ -729,7 +757,7 @@ fn extract_fragment_arguments(
 
 fn get_resolver_field_path(docblock_ir: &DocblockIr) -> Option<String> {
     match docblock_ir {
-        DocblockIr::RelayResolver(resolver_ir) => {
+        DocblockIr::LegacyVerboseResolver(resolver_ir) => {
             let parent_type_name = match resolver_ir.on {
                 On::Type(field) => field.value.item,
                 On::Interface(field) => field.value.item,
@@ -757,7 +785,7 @@ fn validate_strict_resolver_flavors(
         output_type: Option<Location>,
     }
     let validation_info: Option<ResolverFlavorValidationInfo> = match docblock_ir {
-        DocblockIr::RelayResolver(resolver_ir) => {
+        DocblockIr::LegacyVerboseResolver(resolver_ir) => {
             let output_type_location = resolver_ir.output_type.as_ref().map(|ot| {
                 let type_loc = ot.inner().location;
                 let (type_start, _) = type_loc.span().as_usize();
@@ -806,14 +834,14 @@ fn validate_strict_resolver_flavors(
         let mut errs = vec![];
         if let Some(live_loc) = validation_info.live {
             errs.push(Diagnostic::error(
-                "@live is incompatible with @rootFragment",
+                IrParsingErrorMessages::IncompatibleLiveAndRootFragment,
                 live_loc,
             ));
         }
 
         if let Some(output_type_loc) = validation_info.output_type {
             errs.push(Diagnostic::error(
-                "@outputType is incompatible with @rootFragment",
+                IrParsingErrorMessages::IncompatibleOutputTypeAndRootFragment,
                 output_type_loc,
             ));
         }
diff --git a/compiler/crates/relay-docblock/src/errors.rs b/compiler/crates/relay-docblock/src/errors.rs
index 7b54cedc5b3e2..9052cd3b20c88 100644
--- a/compiler/crates/relay-docblock/src/errors.rs
+++ b/compiler/crates/relay-docblock/src/errors.rs
@@ -122,6 +122,22 @@ pub enum IrParsingErrorMessages {
         "Unexpected `@outputType`. The deprecated `@outputType` option is not enabled for the field `{field_name}`."
     )]
     UnexpectedOutputType { field_name: StringKey },
+
+    #[error(
+        "Unexpected `@onType`. The deprecated `@onType` option is not enabled for the field `{field_name}`. Please use the new syntax: `@RelayResolver ParentType.field_name`."
+    )]
+    UnexpectedOnType { field_name: StringKey },
+
+    #[error(
+        "Unexpected `@onInterface`. The deprecated `@onType` option is not enabled for the field `{field_name}`. Please use the new syntax: `@RelayResolver ParentInterface.field_name`."
+    )]
+    UnexpectedOnInterface { field_name: StringKey },
+
+    #[error("@live is incompatible with @rootFragment")]
+    IncompatibleLiveAndRootFragment,
+
+    #[error("@outputType is incompatible with @rootFragment")]
+    IncompatibleOutputTypeAndRootFragment,
 }
 
 #[derive(Clone, Debug, Error, Eq, PartialEq, Ord, PartialOrd, Hash)]
diff --git a/compiler/crates/relay-docblock/src/ir.rs b/compiler/crates/relay-docblock/src/ir.rs
index ed26e7a70698b..b7709856728e9 100644
--- a/compiler/crates/relay-docblock/src/ir.rs
+++ b/compiler/crates/relay-docblock/src/ir.rs
@@ -89,7 +89,7 @@ lazy_static! {
 
 #[derive(Debug, Clone, PartialEq)]
 pub enum DocblockIr {
-    RelayResolver(RelayResolverIr),
+    LegacyVerboseResolver(LegacyVerboseResolverIr),
     TerseRelayResolver(TerseRelayResolverIr),
     StrongObjectResolver(StrongObjectIr),
     WeakObjectType(WeakObjectIr),
@@ -98,7 +98,7 @@ pub enum DocblockIr {
 impl DocblockIr {
     pub(crate) fn get_variant_name(&self) -> &'static str {
         match self {
-            DocblockIr::RelayResolver(_) => "legacy resolver declaration",
+            DocblockIr::LegacyVerboseResolver(_) => "legacy resolver declaration",
             DocblockIr::TerseRelayResolver(_) => "terse resolver declaration",
             DocblockIr::StrongObjectResolver(_) => "strong object type declaration",
             DocblockIr::WeakObjectType(_) => "weak object type declaration",
@@ -143,7 +143,7 @@ impl DocblockIr {
         };
 
         match self {
-            DocblockIr::RelayResolver(relay_resolver) => {
+            DocblockIr::LegacyVerboseResolver(relay_resolver) => {
                 relay_resolver.to_graphql_schema_ast(project_config)
             }
             DocblockIr::TerseRelayResolver(relay_resolver) => {
@@ -229,6 +229,15 @@ pub enum On {
     Interface(PopulatedIrField),
 }
 
+impl On {
+    pub fn type_name(&self) -> StringKey {
+        match self {
+            On::Type(field) => field.value.item,
+            On::Interface(field) => field.value.item,
+        }
+    }
+}
+
 #[derive(Debug, Clone, PartialEq)]
 pub struct Argument {
     pub name: Identifier,
@@ -745,7 +754,7 @@ impl ResolverTypeDefinitionIr for TerseRelayResolverIr {
 }
 
 #[derive(Debug, Clone, PartialEq)]
-pub struct RelayResolverIr {
+pub struct LegacyVerboseResolverIr {
     pub field: FieldDefinitionStub,
     pub on: On,
     pub root_fragment: Option<WithLocation<FragmentDefinitionName>>,
@@ -759,7 +768,7 @@ pub struct RelayResolverIr {
     pub source_hash: ResolverSourceHash,
 }
 
-impl ResolverIr for RelayResolverIr {
+impl ResolverIr for LegacyVerboseResolverIr {
     fn definitions(
         self,
         project_config: ResolverProjectConfig<'_, '_>,
@@ -897,7 +906,7 @@ impl ResolverIr for RelayResolverIr {
     }
 }
 
-impl ResolverTypeDefinitionIr for RelayResolverIr {
+impl ResolverTypeDefinitionIr for LegacyVerboseResolverIr {
     fn field_name(&self) -> &Identifier {
         &self.field.name
     }
diff --git a/compiler/crates/relay-docblock/src/lib.rs b/compiler/crates/relay-docblock/src/lib.rs
index 7b8139b126cf5..ab90ce0ac81fb 100644
--- a/compiler/crates/relay-docblock/src/lib.rs
+++ b/compiler/crates/relay-docblock/src/lib.rs
@@ -31,8 +31,8 @@ use graphql_syntax::ExecutableDefinition;
 use graphql_syntax::TypeSystemDefinition;
 use intern::Lookup;
 pub use ir::DocblockIr;
+use ir::LegacyVerboseResolverIr;
 pub use ir::On;
-use ir::RelayResolverIr;
 use relay_config::ProjectName;
 use schema::SDLSchema;
 use untyped_representation::parse_untyped_docblock_representation;
@@ -40,6 +40,7 @@ use untyped_representation::parse_untyped_docblock_representation;
 pub struct ParseOptions<'a> {
     pub enable_output_type: &'a FeatureFlag,
     pub enable_strict_resolver_flavors: &'a FeatureFlag,
+    pub allow_legacy_verbose_syntax: &'a FeatureFlag,
 }
 
 pub fn parse_docblock_ast(
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null-plural-item.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null-plural-item.invalid.expected
index 9cd364d6e06d8..a33415e47836d 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null-plural-item.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null-plural-item.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -30,8 +31,8 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Unexpected non-nullable item in list type given in `@edgeTo`.
 
-  /path/to/test/fixture/edge-to-non-null-plural-item.invalid.js:15:12
-   14 │  * @fieldName favorite_page
-   15 │  * @edgeTo [Page!]
+  /path/to/test/fixture/edge-to-non-null-plural-item.invalid.js:16:12
+   15 │  * @fieldName favorite_page
+   16 │  * @edgeTo [Page!]
       │            ^^^^^^^
-   16 │  * @rootFragment myRootFragment
+   17 │  * @rootFragment myRootFragment
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null-plural-item.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null-plural-item.invalid.js
index 08f87bc68f426..d2a14c9acf5df 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null-plural-item.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null-plural-item.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null.invalid.expected
index ac7e711deb006..0dc6429496979 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -30,8 +31,8 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Unexpected non-nullable type given in `@edgeTo`.
 
-  /path/to/test/fixture/edge-to-non-null.invalid.js:15:12
-   14 │  * @fieldName favorite_page
-   15 │  * @edgeTo Page!
+  /path/to/test/fixture/edge-to-non-null.invalid.js:16:12
+   15 │  * @fieldName favorite_page
+   16 │  * @edgeTo Page!
       │            ^^^^^
-   16 │  * @rootFragment myRootFragment
+   17 │  * @rootFragment myRootFragment
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null.invalid.js
index 4a8a746a064f3..5b6e1b058ff4e 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-non-null.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-not-identifier.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-not-identifier.invalid.expected
index fb3c06696a444..cbd7cb8c970e4 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-not-identifier.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-not-identifier.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -30,35 +31,35 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Unsupported character
 
-  /path/to/test/fixture/edge-to-not-identifier.invalid.js:15:12
-   14 │  * @fieldName favorite_page
-   15 │  * @edgeTo **LOL**
+  /path/to/test/fixture/edge-to-not-identifier.invalid.js:16:12
+   15 │  * @fieldName favorite_page
+   16 │  * @edgeTo **LOL**
       │            ^
-   16 │  * @rootFragment myRootFragment
+   17 │  * @rootFragment myRootFragment
 
 
 ✖︎ Unsupported character
 
-  /path/to/test/fixture/edge-to-not-identifier.invalid.js:15:13
-   14 │  * @fieldName favorite_page
-   15 │  * @edgeTo **LOL**
+  /path/to/test/fixture/edge-to-not-identifier.invalid.js:16:13
+   15 │  * @fieldName favorite_page
+   16 │  * @edgeTo **LOL**
       │             ^
-   16 │  * @rootFragment myRootFragment
+   17 │  * @rootFragment myRootFragment
 
 
 ✖︎ Unsupported character
 
-  /path/to/test/fixture/edge-to-not-identifier.invalid.js:15:17
-   14 │  * @fieldName favorite_page
-   15 │  * @edgeTo **LOL**
+  /path/to/test/fixture/edge-to-not-identifier.invalid.js:16:17
+   15 │  * @fieldName favorite_page
+   16 │  * @edgeTo **LOL**
       │                 ^
-   16 │  * @rootFragment myRootFragment
+   17 │  * @rootFragment myRootFragment
 
 
 ✖︎ Unsupported character
 
-  /path/to/test/fixture/edge-to-not-identifier.invalid.js:15:18
-   14 │  * @fieldName favorite_page
-   15 │  * @edgeTo **LOL**
+  /path/to/test/fixture/edge-to-not-identifier.invalid.js:16:18
+   15 │  * @fieldName favorite_page
+   16 │  * @edgeTo **LOL**
       │                  ^
-   16 │  * @rootFragment myRootFragment
+   17 │  * @rootFragment myRootFragment
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-not-identifier.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-not-identifier.invalid.js
index 2693a1766bc96..876c0bf197929 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-not-identifier.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/edge-to-not-identifier.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-edge-to-invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-edge-to-invalid.expected
index 16c200c770e0a..386533c78daee 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-edge-to-invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-edge-to-invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -31,8 +32,8 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Unexpected `@outputType`. The deprecated `@outputType` option is not enabled for the field `favorite_page`.
 
-  /path/to/test/fixture/output-type-edge-to-invalid.js:15:5
-   14 │  * @fieldName favorite_page
-   15 │  * @outputType ClientPage
+  /path/to/test/fixture/output-type-edge-to-invalid.js:16:5
+   15 │  * @fieldName favorite_page
+   16 │  * @outputType ClientPage
       │     ^^^^^^^^^^
-   16 │  * @edgeTo Page
+   17 │  * @edgeTo Page
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-edge-to-invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-edge-to-invalid.js
index 55910e8ed77c7..aa9c6ab64fb16 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-edge-to-invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-edge-to-invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-invalid-type.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-invalid-type.expected
index 9584fbeb282a2..3df0fd6cd64ea 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-invalid-type.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-invalid-type.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -30,8 +31,8 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Unexpected `@outputType`. The deprecated `@outputType` option is not enabled for the field `favorite_page`.
 
-  /path/to/test/fixture/output-type-invalid-type.js:15:5
-   14 │  * @fieldName favorite_page
-   15 │  * @outputType **LOL**
+  /path/to/test/fixture/output-type-invalid-type.js:16:5
+   15 │  * @fieldName favorite_page
+   16 │  * @outputType **LOL**
       │     ^^^^^^^^^^
-   16 │  * @rootFragment myRootFragment
+   17 │  * @rootFragment myRootFragment
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-invalid-type.js b/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-invalid-type.js
index f394b4cc19a30..c2fdc34a8d2d7 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-invalid-type.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/output-type-invalid-type.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated-no-description.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated-no-description.expected
index 6662dbec14164..438e88ca9915c 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated-no-description.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated-no-description.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
@@ -22,8 +24,8 @@ graphql`
   }
 `
 ==================================== OUTPUT ===================================
-RelayResolver(
-    RelayResolverIr {
+LegacyVerboseResolver(
+    LegacyVerboseResolverIr {
         field: FieldDefinitionStub {
             name: Identifier {
                 span: 53:66,
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated-no-description.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated-no-description.js
index b1bcec0a6e2b8..9bcc55f45a9c2 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated-no-description.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated-no-description.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated.expected
index 13641cfae20b0..b4387a2a526ec 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
@@ -22,8 +24,8 @@ graphql`
   }
 `
 ==================================== OUTPUT ===================================
-RelayResolver(
-    RelayResolverIr {
+LegacyVerboseResolver(
+    LegacyVerboseResolverIr {
         field: FieldDefinitionStub {
             name: Identifier {
                 span: 53:66,
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated.js
index 3dc6cfabb9a5a..3fc5fc9b6a103 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-deprecated.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-invalid-field.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-invalid-field.invalid.expected
index b0972b372c5be..e6b91e7d776a7 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-invalid-field.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-invalid-field.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -25,8 +26,8 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Unexpected docblock field `@notValid`
 
-  /path/to/test/fixture/relay-resolver-invalid-field.invalid.js:16:5
-   15 │  * @rootFragment myRootFragment
-   16 │  * @notValid myRootFragment
+  /path/to/test/fixture/relay-resolver-invalid-field.invalid.js:17:5
+   16 │  * @rootFragment myRootFragment
+   17 │  * @notValid myRootFragment
       │     ^^^^^^^^
-   17 │
+   18 │
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-invalid-field.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-invalid-field.invalid.js
index f63ed662ba59e..245d748ab5776 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-invalid-field.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-invalid-field.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live-with-text.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live-with-text.invalid.expected
index 71900cc360586..39d36ec2fe447 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live-with-text.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live-with-text.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -26,8 +27,8 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ The `@RelayResolver` field `@live` does not accept data. Remove everything after `@live`.
 
-  /path/to/test/fixture/relay-resolver-live-with-text.invalid.js:17:5
-   16 │  * @rootFragment myRootFragment
-   17 │  * @live in the moment
+  /path/to/test/fixture/relay-resolver-live-with-text.invalid.js:18:5
+   17 │  * @rootFragment myRootFragment
+   18 │  * @live in the moment
       │     ^^^^
-   18 │
+   19 │
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live-with-text.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live-with-text.invalid.js
index d92f50bc3954e..435e84def590b 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live-with-text.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live-with-text.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live.expected
index 3a64794debe73..38f95ca7c2ed7 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
@@ -22,8 +24,8 @@ graphql`
   }
 `
 ==================================== OUTPUT ===================================
-RelayResolver(
-    RelayResolverIr {
+LegacyVerboseResolver(
+    LegacyVerboseResolverIr {
         field: FieldDefinitionStub {
             name: Identifier {
                 span: 53:66,
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live.js
index 598ee5de40351..4685e27732597 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-live.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-named-export.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-named-export.expected
index 311fe248fdc19..48ce543e2b668 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-named-export.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-named-export.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
@@ -25,8 +27,8 @@ graphql`
   }
 `
 ==================================== OUTPUT ===================================
-RelayResolver(
-    RelayResolverIr {
+LegacyVerboseResolver(
+    LegacyVerboseResolverIr {
         field: FieldDefinitionStub {
             name: Identifier {
                 span: 53:66,
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-named-export.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-named-export.js
index 60a25f38e5207..34026ec50e5cd 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-named-export.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-named-export.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-mismatch.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-mismatch.invalid.expected
index 8f0aa18ac7584..c397549c40664 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-mismatch.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-mismatch.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -25,16 +26,16 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ The type specified in the fragment (`User`) and the type specified in `@onInterface` (`Node`) are different. Please make sure these are exactly the same.
 
-  /path/to/test/fixture/relay-resolver-on-interface-mismatch.invalid.js:13:17
-   12 │  *
-   13 │  * @onInterface Node
+  /path/to/test/fixture/relay-resolver-on-interface-mismatch.invalid.js:14:17
+   13 │  *
+   14 │  * @onInterface Node
       │                 ^^^^
-   14 │  * @fieldName favorite_page
+   15 │  * @fieldName favorite_page
 
   ℹ︎ with fragment type condition
 
-  /path/to/test/fixture/relay-resolver-on-interface-mismatch.invalid.js:20:27
-   19 │ 
-   20 │   fragment myRootFragment on User {
+  /path/to/test/fixture/relay-resolver-on-interface-mismatch.invalid.js:21:27
+   20 │ 
+   21 │   fragment myRootFragment on User {
       │                           ^^^^^^^
-   21 │     name
+   22 │     name
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-mismatch.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-mismatch.invalid.js
index 58990b2dd252a..224e2078fcfb9 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-mismatch.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-mismatch.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-no-value.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-no-value.invalid.expected
index 2031e632a55fb..2c828765379e0 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-no-value.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-no-value.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -25,8 +26,8 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Expected docblock field `@onInterface` to have specified a value.
 
-  /path/to/test/fixture/relay-resolver-on-interface-no-value.invalid.js:13:5
-   12 │  *
-   13 │  * @onInterface
+  /path/to/test/fixture/relay-resolver-on-interface-no-value.invalid.js:14:5
+   13 │  *
+   14 │  * @onInterface
       │     ^^^^^^^^^^^
-   14 │  * @fieldName favorite_page
+   15 │  * @fieldName favorite_page
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-no-value.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-no-value.invalid.js
index 472c374cc7370..5fb2e84d933fb 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-no-value.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-no-value.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-not-allowed.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-not-allowed.invalid.expected
new file mode 100644
index 0000000000000..2d4dff2ce2eea
--- /dev/null
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-not-allowed.invalid.expected
@@ -0,0 +1,36 @@
+==================================== INPUT ====================================
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+// expected-to-throw
+
+/**
+ * @RelayResolver
+ *
+ * @onInterface Viewer
+ * @fieldName favorite_page
+ * @rootFragment myRootFragment
+ *
+ * The user's favorite page! They probably clicked something in the UI
+ * to tell us that it was their favorite page and then we put that in a
+ * database or something. Then we got that info out again and put it out
+ * again. Anyway, I'm rambling now. Its a page that the user likes. A lot.
+ */
+
+graphql`
+  fragment myRootFragment on Viewer {
+    name
+  }
+`
+==================================== ERROR ====================================
+✖︎ Unexpected `@onInterface`. The deprecated `@onType` option is not enabled for the field `Viewer.favorite_page`. Please use the new syntax: `@RelayResolver ParentInterface.field_name`.
+
+  /path/to/test/fixture/relay-resolver-on-interface-not-allowed.invalid.js:13:5
+   12 │  *
+   13 │  * @onInterface Viewer
+      │     ^^^^^^^^^^^
+   14 │  * @fieldName favorite_page
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-not-allowed.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-not-allowed.invalid.js
new file mode 100644
index 0000000000000..aee69675a815d
--- /dev/null
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-interface-not-allowed.invalid.js
@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+// expected-to-throw
+
+/**
+ * @RelayResolver
+ *
+ * @onInterface Viewer
+ * @fieldName favorite_page
+ * @rootFragment myRootFragment
+ *
+ * The user's favorite page! They probably clicked something in the UI
+ * to tell us that it was their favorite page and then we put that in a
+ * database or something. Then we got that info out again and put it out
+ * again. Anyway, I'm rambling now. Its a page that the user likes. A lot.
+ */
+
+graphql`
+  fragment myRootFragment on Viewer {
+    name
+  }
+`
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-and-on-interface.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-and-on-interface.invalid.expected
index a9e6726f8527f..114a5dbae172f 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-and-on-interface.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-and-on-interface.invalid.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 // expected-to-throw
 
 /**
@@ -26,16 +28,16 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Unexpected `@onType` and `@onInterface`. Only one of these docblock fields should be defined on a given `@RelayResolver`.
 
-  /path/to/test/fixture/relay-resolver-on-type-and-on-interface.invalid.js:13:5
-   12 │  *
-   13 │  * @onType User
+  /path/to/test/fixture/relay-resolver-on-type-and-on-interface.invalid.js:15:5
+   14 │  *
+   15 │  * @onType User
       │     ^^^^^^
-   14 │  * @onInterface Node
+   16 │  * @onInterface Node
 
   ℹ︎ @onInterface
 
-  /path/to/test/fixture/relay-resolver-on-type-and-on-interface.invalid.js:14:5
-   13 │  * @onType User
-   14 │  * @onInterface Node
+  /path/to/test/fixture/relay-resolver-on-type-and-on-interface.invalid.js:16:5
+   15 │  * @onType User
+   16 │  * @onInterface Node
       │     ^^^^^^^^^^^
-   15 │  * @fieldName favorite_page
+   17 │  * @fieldName favorite_page
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-and-on-interface.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-and-on-interface.invalid.js
index 89da6eb96048f..331e0cb6c7e2a 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-and-on-interface.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-and-on-interface.invalid.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 // expected-to-throw
 
 /**
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-mismatch.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-mismatch.invalid.expected
index 2decf0eeef7dc..15c34c0e5274f 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-mismatch.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-mismatch.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -25,16 +26,16 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ The type specified in the fragment (`User`) and the type specified in `@onType` (`Query`) are different. Please make sure these are exactly the same.
 
-  /path/to/test/fixture/relay-resolver-on-type-mismatch.invalid.js:13:12
-   12 │  *
-   13 │  * @onType Query
+  /path/to/test/fixture/relay-resolver-on-type-mismatch.invalid.js:14:12
+   13 │  *
+   14 │  * @onType Query
       │            ^^^^^
-   14 │  * @fieldName favorite_page
+   15 │  * @fieldName favorite_page
 
   ℹ︎ with fragment type condition
 
-  /path/to/test/fixture/relay-resolver-on-type-mismatch.invalid.js:20:27
-   19 │ 
-   20 │   fragment myRootFragment on User {
+  /path/to/test/fixture/relay-resolver-on-type-mismatch.invalid.js:21:27
+   20 │ 
+   21 │   fragment myRootFragment on User {
       │                           ^^^^^^^
-   21 │     name
+   22 │     name
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-mismatch.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-mismatch.invalid.js
index b1f14546977c5..87fdc6082c1d4 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-mismatch.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-mismatch.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-no-value.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-no-value.invalid.expected
index 78af772c446dd..40eef300f9a2e 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-no-value.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-no-value.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -25,8 +26,8 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Expected docblock field `@onType` to have specified a value.
 
-  /path/to/test/fixture/relay-resolver-on-type-no-value.invalid.js:13:5
-   12 │  *
-   13 │  * @onType
+  /path/to/test/fixture/relay-resolver-on-type-no-value.invalid.js:14:5
+   13 │  *
+   14 │  * @onType
       │     ^^^^^^
-   14 │  * @fieldName favorite_page
+   15 │  * @fieldName favorite_page
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-no-value.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-no-value.invalid.js
index 76f830aec9e93..b17234c51a92c 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-no-value.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-no-value.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-not-allowed.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-not-allowed.invalid.expected
new file mode 100644
index 0000000000000..245f1b684ec7e
--- /dev/null
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-not-allowed.invalid.expected
@@ -0,0 +1,36 @@
+==================================== INPUT ====================================
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+// expected-to-throw
+
+/**
+ * @RelayResolver
+ *
+ * @onType User
+ * @fieldName favorite_page
+ * @rootFragment myRootFragment
+ *
+ * The user's favorite page! They probably clicked something in the UI
+ * to tell us that it was their favorite page and then we put that in a
+ * database or something. Then we got that info out again and put it out
+ * again. Anyway, I'm rambling now. Its a page that the user likes. A lot.
+ */
+
+graphql`
+  fragment myRootFragment on User {
+    name
+  }
+`
+==================================== ERROR ====================================
+✖︎ Unexpected `@onType`. The deprecated `@onType` option is not enabled for the field `User.favorite_page`. Please use the new syntax: `@RelayResolver ParentType.field_name`.
+
+  /path/to/test/fixture/relay-resolver-on-type-not-allowed.invalid.js:13:5
+   12 │  *
+   13 │  * @onType User
+      │     ^^^^^^
+   14 │  * @fieldName favorite_page
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-not-allowed.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-not-allowed.invalid.js
new file mode 100644
index 0000000000000..7729447b723bd
--- /dev/null
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-on-type-not-allowed.invalid.js
@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+// expected-to-throw
+
+/**
+ * @RelayResolver
+ *
+ * @onType User
+ * @fieldName favorite_page
+ * @rootFragment myRootFragment
+ *
+ * The user's favorite page! They probably clicked something in the UI
+ * to tell us that it was their favorite page and then we put that in a
+ * database or something. Then we got that info out again and put it out
+ * again. Anyway, I'm rambling now. Its a page that the user likes. A lot.
+ */
+
+graphql`
+  fragment myRootFragment on User {
+    name
+  }
+`
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-default-value.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-default-value.invalid.expected
index 3c1dee099a1e9..bdd509eba9f9f 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-default-value.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-default-value.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -16,8 +17,8 @@
 ==================================== ERROR ====================================
 ✖︎ Defining arguments with default values for resolver fields is not supported, yet.
 
-  /path/to/test/fixture/relay-resolver-with-args-default-value.invalid.js:13:37
-   12 │  * @onType User
-   13 │  * @fieldName hello(world: String = "World")
+  /path/to/test/fixture/relay-resolver-with-args-default-value.invalid.js:14:37
+   13 │  * @onType User
+   14 │  * @fieldName hello(world: String = "World")
       │                                     ^^^^^^^
-   14 │
+   15 │
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-default-value.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-default-value.invalid.js
index 7075f7be25750..d21c59bc05f22 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-default-value.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-default-value.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-syntax-error.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-syntax-error.invalid.expected
index d439e0e9f9382..6057534b8e0bd 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-syntax-error.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-syntax-error.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -25,8 +26,8 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Expected a colon (':')
 
-  /path/to/test/fixture/relay-resolver-with-args-syntax-error.invalid.js:14:34
-   13 │  * @onType User
-   14 │  * @fieldName greeting(salutation)
+  /path/to/test/fixture/relay-resolver-with-args-syntax-error.invalid.js:15:34
+   14 │  * @onType User
+   15 │  * @fieldName greeting(salutation)
       │                                  ^
-   15 │  * @rootFragment myRootFragment
+   16 │  * @rootFragment myRootFragment
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-syntax-error.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-syntax-error.invalid.js
index ad274ddd328f4..dec048133aea8 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-syntax-error.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args-syntax-error.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args.expected
index 91c6583b6f184..358f7bfee318c 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
@@ -25,8 +27,8 @@ graphql`
   }
 `
 ==================================== OUTPUT ===================================
-RelayResolver(
-    RelayResolverIr {
+LegacyVerboseResolver(
+    LegacyVerboseResolverIr {
         field: FieldDefinitionStub {
             name: Identifier {
                 span: 53:66,
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args.js
index bc914b394cc15..1a2ded6a8df1f 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-args.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-conflicting-args.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-conflicting-args.invalid.expected
index fd77d0a1ae234..44a71a86f3248 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-conflicting-args.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-conflicting-args.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -25,16 +26,16 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Unexpected conflicting argument name. This field argument
 
-  /path/to/test/fixture/relay-resolver-with-conflicting-args.invalid.js:14:24
-   13 │  * @onType User
-   14 │  * @fieldName greeting(salutation: String!)
+  /path/to/test/fixture/relay-resolver-with-conflicting-args.invalid.js:15:24
+   14 │  * @onType User
+   15 │  * @fieldName greeting(salutation: String!)
       │                        ^^^^^^^^^^
-   15 │  * @rootFragment myRootFragment
+   16 │  * @rootFragment myRootFragment
 
   ℹ︎ conflicts with this fragment argument
 
-  /path/to/test/fixture/relay-resolver-with-conflicting-args.invalid.js:20:56
-   19 │ 
-   20 │   fragment myRootFragment on User @argumentDefinitions(salutation: {type: "String!"}) {
+  /path/to/test/fixture/relay-resolver-with-conflicting-args.invalid.js:21:56
+   20 │ 
+   21 │   fragment myRootFragment on User @argumentDefinitions(salutation: {type: "String!"}) {
       │                                                        ^^^^^^^^^^
-   21 │     name
+   22 │     name
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-conflicting-args.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-conflicting-args.invalid.js
index 5de99a6a38393..cde25a724db64 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-conflicting-args.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-conflicting-args.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-and-fragment-args.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-and-fragment-args.expected
index 8817c48c40508..596ed9e6a8d96 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-and-fragment-args.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-and-fragment-args.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
@@ -21,8 +23,8 @@ graphql`
   }
 `
 ==================================== OUTPUT ===================================
-RelayResolver(
-    RelayResolverIr {
+LegacyVerboseResolver(
+    LegacyVerboseResolverIr {
         field: FieldDefinitionStub {
             name: Identifier {
                 span: 53:61,
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-and-fragment-args.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-and-fragment-args.js
index 71b0530919e17..8bbf6b791db3e 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-and-fragment-args.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-and-fragment-args.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-args.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-args.expected
index 5128a32defe67..5a105ff0cea03 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-args.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-args.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
@@ -21,8 +23,8 @@ graphql`
   }
 `
 ==================================== OUTPUT ===================================
-RelayResolver(
-    RelayResolverIr {
+LegacyVerboseResolver(
+    LegacyVerboseResolverIr {
         field: FieldDefinitionStub {
             name: Identifier {
                 span: 53:61,
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-args.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-args.js
index 4c65c814c0d79..ef416893d314d 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-args.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-field-args.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.expected
index 5a3adde02431b..1f2ada5991b36 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
@@ -20,8 +22,8 @@ graphql`
   }
 `
 ==================================== OUTPUT ===================================
-RelayResolver(
-    RelayResolverIr {
+LegacyVerboseResolver(
+    LegacyVerboseResolverIr {
         field: FieldDefinitionStub {
             name: Identifier {
                 span: 53:61,
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.invalid.expected
index 8b61c84eed469..03bdbe1258f9e 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 graphql`
   fragment myRootFragment on User {
@@ -24,8 +25,8 @@ graphql`
 ==================================== ERROR ====================================
 ✖︎ Fragment `missingFragment` not found. Did you mean `myRootFragment`?
 
-  /path/to/test/fixture/relay-resolver-with-fragment.invalid.js:21:18
-   20 │  * @fieldName my_field
-   21 │  * @rootFragment missingFragment
+  /path/to/test/fixture/relay-resolver-with-fragment.invalid.js:22:18
+   21 │  * @fieldName my_field
+   22 │  * @rootFragment missingFragment
       │                  ^^^^^^^^^^^^^^^
-   22 │
+   23 │
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.invalid.js
index 700dfdb135adb..b793b7e0ec1a1 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 graphql`
   fragment myRootFragment on User {
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.js
index 603d79a39c580..08005c34078e8 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-fragment.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-output-type.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-output-type.expected
index e8b72ff9f02fe..f2a746e820118 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-output-type.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-output-type.expected
@@ -7,6 +7,7 @@
  */
 
 // relay:enable_output_type
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -28,8 +29,8 @@ graphql`
  }
 `
 ==================================== OUTPUT ===================================
-RelayResolver(
-    RelayResolverIr {
+LegacyVerboseResolver(
+    LegacyVerboseResolverIr {
         field: FieldDefinitionStub {
             name: Identifier {
                 span: 53:66,
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-output-type.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-output-type.js
index 1faff444d1b61..355226907ccdd 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-output-type.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver-with-output-type.js
@@ -6,6 +6,7 @@
  */
 
 // relay:enable_output_type
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver.expected
index 7612dcda71977..36b8d52a098ae 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
@@ -26,8 +28,8 @@ graphql`
   }
 `
 ==================================== OUTPUT ===================================
-RelayResolver(
-    RelayResolverIr {
+LegacyVerboseResolver(
+    LegacyVerboseResolverIr {
         field: FieldDefinitionStub {
             name: Identifier {
                 span: 53:66,
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver.js b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver.js
index acaf5a0b9ae9c..9e61999d4fd25 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/relay-resolver.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-multiple-errors.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-multiple-errors.invalid.expected
index 36258fb8e980f..1444c89ac1119 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-multiple-errors.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-multiple-errors.invalid.expected
@@ -9,6 +9,7 @@
 // expected-to-throw
 // relay:enable_strict_resolver_flavors
 // relay:enable_output_type
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -31,17 +32,17 @@
 ==================================== ERROR ====================================
 ✖︎ @live is incompatible with @rootFragment
 
-  /path/to/test/fixture/strict-flavors-multiple-errors.invalid.js:18:5
-   17 │  * @outputType SomeType
-   18 │  * @live
+  /path/to/test/fixture/strict-flavors-multiple-errors.invalid.js:19:5
+   18 │  * @outputType SomeType
+   19 │  * @live
       │     ^^^^
-   19 │  *
+   20 │  *
 
 
 ✖︎ @outputType is incompatible with @rootFragment
 
-  /path/to/test/fixture/strict-flavors-multiple-errors.invalid.js:17:5
-   16 │  * @rootFragment myRootFragment
-   17 │  * @outputType SomeType
+  /path/to/test/fixture/strict-flavors-multiple-errors.invalid.js:18:5
+   17 │  * @rootFragment myRootFragment
+   18 │  * @outputType SomeType
       │     ^^^^^^^^^^
-   18 │  * @live
+   19 │  * @live
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-multiple-errors.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-multiple-errors.invalid.js
index 59fbe16158a01..d9dc14142c20c 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-multiple-errors.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-multiple-errors.invalid.js
@@ -8,6 +8,7 @@
 // expected-to-throw
 // relay:enable_strict_resolver_flavors
 // relay:enable_output_type
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-output-type-with-root-fragment.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-output-type-with-root-fragment.invalid.expected
index 8713cf67483ea..456c1dccd3321 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-output-type-with-root-fragment.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-output-type-with-root-fragment.invalid.expected
@@ -9,6 +9,7 @@
 // expected-to-throw
 // relay:enable_strict_resolver_flavors
 // relay:enable_output_type
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
@@ -30,8 +31,8 @@
 ==================================== ERROR ====================================
 ✖︎ @outputType is incompatible with @rootFragment
 
-  /path/to/test/fixture/strict-flavors-output-type-with-root-fragment.invalid.js:17:5
-   16 │  * @rootFragment myRootFragment
-   17 │  * @outputType SomeType
+  /path/to/test/fixture/strict-flavors-output-type-with-root-fragment.invalid.js:18:5
+   17 │  * @rootFragment myRootFragment
+   18 │  * @outputType SomeType
       │     ^^^^^^^^^^
-   18 │  *
+   19 │  *
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-output-type-with-root-fragment.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-output-type-with-root-fragment.invalid.js
index c6bf3546f3984..6790ee9a41e3e 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-output-type-with-root-fragment.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/strict-flavors-output-type-with-root-fragment.invalid.js
@@ -8,6 +8,7 @@
 // expected-to-throw
 // relay:enable_strict_resolver_flavors
 // relay:enable_output_type
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/terse-relay-resolver-forbidden-fields.invalid.expected b/compiler/crates/relay-docblock/tests/parse/fixtures/terse-relay-resolver-forbidden-fields.invalid.expected
index 37a185056ec9b..b49dbfea2e950 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/terse-relay-resolver-forbidden-fields.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/terse-relay-resolver-forbidden-fields.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver User.favorite_page: Page
@@ -31,56 +32,56 @@
 ==================================== ERROR ====================================
 ✖︎ The compiler attempted to parse this `@RelayResolver` block as a terse resolver declaration, but there were unexpected fields: @fieldName, @onType, @onInterface, @edgeTo, @outputType, and @weak.
 
-  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:11:5
-   10 │ *
-   11 │  * @RelayResolver User.favorite_page: Page
+  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:12:5
+   11 │ *
+   12 │  * @RelayResolver User.favorite_page: Page
       │     ^^^^^^^^^^^^^
-   12 │  * @rootFragment myRootFragment
+   13 │  * @rootFragment myRootFragment
 
   ℹ︎ Unexpected field
 
-  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:13:5
-   12 │  * @rootFragment myRootFragment
-   13 │  * @onType User
+  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:14:5
+   13 │  * @rootFragment myRootFragment
+   14 │  * @onType User
       │     ^^^^^^
-   14 │  * @edgeTo User
+   15 │  * @edgeTo User
 
   ℹ︎ Unexpected field
 
-  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:14:5
-   13 │  * @onType User
-   14 │  * @edgeTo User
+  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:15:5
+   14 │  * @onType User
+   15 │  * @edgeTo User
       │     ^^^^^^
-   15 │  * @onInterface User
+   16 │  * @onInterface User
 
   ℹ︎ Unexpected field
 
-  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:15:5
-   14 │  * @edgeTo User
-   15 │  * @onInterface User
+  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:16:5
+   15 │  * @edgeTo User
+   16 │  * @onInterface User
       │     ^^^^^^^^^^^
-   16 │  * @outputType User
+   17 │  * @outputType User
 
   ℹ︎ Unexpected field
 
-  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:16:5
-   15 │  * @onInterface User
-   16 │  * @outputType User
+  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:17:5
+   16 │  * @onInterface User
+   17 │  * @outputType User
       │     ^^^^^^^^^^
-   17 │  * @fieldName my_field
+   18 │  * @fieldName my_field
 
   ℹ︎ Unexpected field
 
-  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:17:5
-   16 │  * @outputType User
-   17 │  * @fieldName my_field
+  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:18:5
+   17 │  * @outputType User
+   18 │  * @fieldName my_field
       │     ^^^^^^^^^
-   18 │  * @weak
+   19 │  * @weak
 
   ℹ︎ Unexpected field
 
-  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:18:5
-   17 │  * @fieldName my_field
-   18 │  * @weak
+  /path/to/test/fixture/terse-relay-resolver-forbidden-fields.invalid.js:19:5
+   18 │  * @fieldName my_field
+   19 │  * @weak
       │     ^^^^
-   19 │  *
+   20 │  *
diff --git a/compiler/crates/relay-docblock/tests/parse/fixtures/terse-relay-resolver-forbidden-fields.invalid.js b/compiler/crates/relay-docblock/tests/parse/fixtures/terse-relay-resolver-forbidden-fields.invalid.js
index e4e91469f3cd9..72e99e458f28e 100644
--- a/compiler/crates/relay-docblock/tests/parse/fixtures/terse-relay-resolver-forbidden-fields.invalid.js
+++ b/compiler/crates/relay-docblock/tests/parse/fixtures/terse-relay-resolver-forbidden-fields.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver User.favorite_page: Page
diff --git a/compiler/crates/relay-docblock/tests/parse/mod.rs b/compiler/crates/relay-docblock/tests/parse/mod.rs
index 17dfc6ae2ba2d..311c9f5e0bf50 100644
--- a/compiler/crates/relay-docblock/tests/parse/mod.rs
+++ b/compiler/crates/relay-docblock/tests/parse/mod.rs
@@ -79,6 +79,14 @@ pub async fn transform_fixture(fixture: &Fixture<'_>) -> Result<String, String>
                             } else {
                                 &FeatureFlag::Disabled
                             },
+                            allow_legacy_verbose_syntax: if fixture
+                                .content
+                                .contains("// relay:allow_legacy_verbose_syntax")
+                            {
+                                &FeatureFlag::Enabled
+                            } else {
+                                &FeatureFlag::Disabled
+                            },
                         },
                     )
                 })
diff --git a/compiler/crates/relay-docblock/tests/parse_test.rs b/compiler/crates/relay-docblock/tests/parse_test.rs
index 5fd44cfcb8e67..7af7a4ba79a2b 100644
--- a/compiler/crates/relay-docblock/tests/parse_test.rs
+++ b/compiler/crates/relay-docblock/tests/parse_test.rs
@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<f6e0aea74aa0b58c207839f7cf6010b7>>
+ * @generated SignedSource<<c8739ad0b60736cf314b0c9beeecd93a>>
  */
 
 mod parse;
@@ -124,6 +124,13 @@ async fn relay_resolver_on_interface_no_value_invalid() {
     test_fixture(transform_fixture, "relay-resolver-on-interface-no-value.invalid.js", "parse/fixtures/relay-resolver-on-interface-no-value.invalid.expected", input, expected).await;
 }
 
+#[tokio::test]
+async fn relay_resolver_on_interface_not_allowed_invalid() {
+    let input = include_str!("parse/fixtures/relay-resolver-on-interface-not-allowed.invalid.js");
+    let expected = include_str!("parse/fixtures/relay-resolver-on-interface-not-allowed.invalid.expected");
+    test_fixture(transform_fixture, "relay-resolver-on-interface-not-allowed.invalid.js", "parse/fixtures/relay-resolver-on-interface-not-allowed.invalid.expected", input, expected).await;
+}
+
 #[tokio::test]
 async fn relay_resolver_on_type_and_on_interface_invalid() {
     let input = include_str!("parse/fixtures/relay-resolver-on-type-and-on-interface.invalid.js");
@@ -145,6 +152,13 @@ async fn relay_resolver_on_type_no_value_invalid() {
     test_fixture(transform_fixture, "relay-resolver-on-type-no-value.invalid.js", "parse/fixtures/relay-resolver-on-type-no-value.invalid.expected", input, expected).await;
 }
 
+#[tokio::test]
+async fn relay_resolver_on_type_not_allowed_invalid() {
+    let input = include_str!("parse/fixtures/relay-resolver-on-type-not-allowed.invalid.js");
+    let expected = include_str!("parse/fixtures/relay-resolver-on-type-not-allowed.invalid.expected");
+    test_fixture(transform_fixture, "relay-resolver-on-type-not-allowed.invalid.js", "parse/fixtures/relay-resolver-on-type-not-allowed.invalid.expected", input, expected).await;
+}
+
 #[tokio::test]
 async fn relay_resolver_strong_object() {
     let input = include_str!("parse/fixtures/relay-resolver-strong-object.js");
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-relay-resolver.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-relay-resolver.expected
index eae14786aa94e..8fd521ace11d2 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-relay-resolver.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-relay-resolver.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-relay-resolver.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-relay-resolver.js
index 01d61ceeeea8d..933ac69a77164 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-relay-resolver.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-relay-resolver.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-non-null-plural-server-object-relay-resolver.invalid.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-non-null-plural-server-object-relay-resolver.invalid.expected
index 6da7e125f81f0..a4ed54f64b40d 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-non-null-plural-server-object-relay-resolver.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-non-null-plural-server-object-relay-resolver.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-non-null-plural-server-object-relay-resolver.invalid.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-non-null-plural-server-object-relay-resolver.invalid.js
index 5d991ef9903c1..018ad38b2acfa 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-non-null-plural-server-object-relay-resolver.invalid.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-non-null-plural-server-object-relay-resolver.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-plural-server-object-relay-resolver.invalid.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-plural-server-object-relay-resolver.invalid.expected
index e4a79288aa1f0..be5022c578352 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-plural-server-object-relay-resolver.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-plural-server-object-relay-resolver.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-plural-server-object-relay-resolver.invalid.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-plural-server-object-relay-resolver.invalid.js
index e509ae0908e0a..3a8d627a3ea45 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-plural-server-object-relay-resolver.invalid.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/client-edge-to-plural-server-object-relay-resolver.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/legacy-relay-resolver-with-root-fragment-on-model.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/legacy-relay-resolver-with-root-fragment-on-model.expected
index 310a6b05cfc9d..4b9f2d6668f6a 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/legacy-relay-resolver-with-root-fragment-on-model.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/legacy-relay-resolver-with-root-fragment-on-model.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver MyType
  */
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/legacy-relay-resolver-with-root-fragment-on-model.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/legacy-relay-resolver-with-root-fragment-on-model.js
index cb8e2db7106e0..40396ae7b0ad9 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/legacy-relay-resolver-with-root-fragment-on-model.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/legacy-relay-resolver-with-root-fragment-on-model.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver MyType
  */
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated-no-description.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated-no-description.expected
index 207ae5baffc73..05cbac5f6374a 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated-no-description.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated-no-description.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated-no-description.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated-no-description.js
index 6323335391023..03221053de3df 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated-no-description.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated-no-description.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated.expected
index 43da87d591826..c264843bc23eb 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated.js
index 06d951851e16c..c25c198020c0c 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-deprecated.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-id.invalid.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-id.invalid.expected
index d0714e313cda2..8c9d7b473c9a4 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-id.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-id.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-id.invalid.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-id.invalid.js
index cbbdf08466eab..6a273167a3860 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-id.invalid.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-id.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-grandparent-interface.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-grandparent-interface.expected
index c76eec706553e..0e8d038fb2d52 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-grandparent-interface.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-grandparent-interface.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-grandparent-interface.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-grandparent-interface.js
index ff7f2a5c5d85c..0d314ff855825 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-grandparent-interface.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-grandparent-interface.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-parent-interface.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-parent-interface.expected
index 041547f4351a4..8d0ac6ad758d3 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-parent-interface.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-parent-interface.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-parent-interface.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-parent-interface.js
index 543fd50dc72b0..0906ab3c7b85e 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-parent-interface.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-implementing-a-field-defined-by-parent-interface.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-named-export.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-named-export.expected
index a9c157016f668..7189d4d854ebc 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-named-export.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-named-export.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-named-export.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-named-export.js
index 60a25f38e5207..34026ec50e5cd 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-named-export.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-named-export.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-implementing-a-field-defined-by-parent-interface.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-implementing-a-field-defined-by-parent-interface.expected
index 5997de85870ca..09620f98909f2 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-implementing-a-field-defined-by-parent-interface.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-implementing-a-field-defined-by-parent-interface.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-implementing-a-field-defined-by-parent-interface.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-implementing-a-field-defined-by-parent-interface.js
index 6c7aa1671f20a..aa4930bfcc5bb 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-implementing-a-field-defined-by-parent-interface.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-implementing-a-field-defined-by-parent-interface.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-with-type.invalid.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-with-type.invalid.expected
index b76802016c3c4..ce3780f6ff1a5 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-with-type.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-with-type.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-with-type.invalid.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-with-type.invalid.js
index 5b95735507768..37dbc6df0a2ee 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-with-type.invalid.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface-with-type.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface.expected
index d12194eebd7ad..a0dace5990ef0 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface.js
index d06c197d5135d..535e566a649dc 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-interface.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-interface.invalid.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-interface.invalid.expected
index bd3f2b99672f5..666ad19bb50bd 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-interface.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-interface.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-interface.invalid.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-interface.invalid.js
index 5b95735507768..37dbc6df0a2ee 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-interface.invalid.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-interface.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-type.invalid.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-type.invalid.expected
index 1180bbdba5df0..74b5722668abf 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-type.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-type.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-type.invalid.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-type.invalid.js
index 7349ca9b5b909..aeb297090a483 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-type.invalid.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-invalid-type.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-type-with-interface.invalid.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-type-with-interface.invalid.expected
index edda06b165368..3ae8428960451 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-type-with-interface.invalid.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-type-with-interface.invalid.expected
@@ -7,6 +7,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-type-with-interface.invalid.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-type-with-interface.invalid.js
index 866bfa805edcb..5e01f9e335a12 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-type-with-interface.invalid.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-on-type-with-interface.invalid.js
@@ -6,6 +6,7 @@
  */
 
 // expected-to-throw
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-args.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-args.expected
index 7394d92d66636..ea0169caedf60 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-args.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-args.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-args.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-args.js
index bc914b394cc15..1a2ded6a8df1f 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-args.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-args.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-and-fragment-args.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-and-fragment-args.expected
index bf15384401226..3d10a4f2cd697 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-and-fragment-args.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-and-fragment-args.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-and-fragment-args.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-and-fragment-args.js
index 71b0530919e17..8bbf6b791db3e 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-and-fragment-args.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-and-fragment-args.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-args.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-args.expected
index ba2ba2d185eb0..90136522e9b9e 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-args.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-args.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-args.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-args.js
index 4c65c814c0d79..ef416893d314d 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-args.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-field-args.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-output-type.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-output-type.expected
index 850550699cda5..74d66c6c015e0 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-output-type.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-output-type.expected
@@ -7,6 +7,7 @@
  */
 
 // relay:enable_output_type
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-output-type.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-output-type.js
index 37614f7b4dd87..6d1a574a04bdc 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-output-type.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver-with-output-type.js
@@ -6,6 +6,7 @@
  */
 
 // relay:enable_output_type
+// relay:allow_legacy_verbose_syntax
 
 /**
  * @RelayResolver
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver.expected b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver.expected
index 9a067aeb4e513..faf179dfad7fc 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver.expected
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver.expected
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver.js b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver.js
index 60a25f38e5207..34026ec50e5cd 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver.js
+++ b/compiler/crates/relay-docblock/tests/to_schema/fixtures/relay-resolver.js
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// relay:allow_legacy_verbose_syntax
+
 /**
  * @RelayResolver
  *
diff --git a/compiler/crates/relay-docblock/tests/to_schema/mod.rs b/compiler/crates/relay-docblock/tests/to_schema/mod.rs
index f9179c5152d29..ad01df44e24b4 100644
--- a/compiler/crates/relay-docblock/tests/to_schema/mod.rs
+++ b/compiler/crates/relay-docblock/tests/to_schema/mod.rs
@@ -81,6 +81,14 @@ pub async fn transform_fixture(fixture: &Fixture<'_>) -> Result<String, String>
                 } else {
                     &FeatureFlag::Disabled
                 },
+                allow_legacy_verbose_syntax: if fixture
+                    .content
+                    .contains("// relay:allow_legacy_verbose_syntax")
+                {
+                    &FeatureFlag::Enabled
+                } else {
+                    &FeatureFlag::Disabled
+                },
             },
         )?
         .unwrap();
diff --git a/compiler/crates/relay-lsp/src/docblock_resolution_info.rs b/compiler/crates/relay-lsp/src/docblock_resolution_info.rs
index 0d36fdf0903dc..37b7885780914 100644
--- a/compiler/crates/relay-lsp/src/docblock_resolution_info.rs
+++ b/compiler/crates/relay-lsp/src/docblock_resolution_info.rs
@@ -23,7 +23,7 @@ pub fn create_docblock_resolution_info(
     position_span: Span,
 ) -> Option<DocblockResolutionInfo> {
     match docblock_ir {
-        DocblockIr::RelayResolver(resolver_ir) => {
+        DocblockIr::LegacyVerboseResolver(resolver_ir) => {
             match resolver_ir.on {
                 On::Type(on_type) => {
                     if on_type.value.location.contains(position_span) {
diff --git a/compiler/crates/relay-lsp/src/references/mod.rs b/compiler/crates/relay-lsp/src/references/mod.rs
index 246adfb674999..06983a8ca59d3 100644
--- a/compiler/crates/relay-lsp/src/references/mod.rs
+++ b/compiler/crates/relay-lsp/src/references/mod.rs
@@ -76,7 +76,7 @@ fn get_references_response(
         FeatureResolutionInfo::DocblockNode(docblock_node) => {
             if let DocblockResolutionInfo::FieldName(field_name) = docblock_node.resolution_info {
                 let type_name = match docblock_node.ir {
-                    DocblockIr::RelayResolver(relay_resolver) => match relay_resolver.on {
+                    DocblockIr::LegacyVerboseResolver(relay_resolver) => match relay_resolver.on {
                         On::Type(type_) => type_.value.item,
                         On::Interface(interface) => interface.value.item,
                     },
diff --git a/compiler/crates/relay-lsp/src/server/lsp_state.rs b/compiler/crates/relay-lsp/src/server/lsp_state.rs
index 0275fc6451d1b..f438d2b0f4575 100644
--- a/compiler/crates/relay-lsp/src/server/lsp_state.rs
+++ b/compiler/crates/relay-lsp/src/server/lsp_state.rs
@@ -302,6 +302,9 @@ impl<TPerfLogger: PerfLogger + 'static, TSchemaDocumentation: SchemaDocumentatio
                         enable_strict_resolver_flavors: &project_config
                             .feature_flags
                             .relay_resolvers_enable_strict_resolver_flavors,
+                        allow_legacy_verbose_syntax: &project_config
+                            .feature_flags
+                            .relay_resolvers_allow_legacy_verbose_syntax,
                     },
                 )
             });
diff --git a/compiler/crates/relay-lsp/src/utils.rs b/compiler/crates/relay-lsp/src/utils.rs
index bda6fe9b58294..5d402e3798b2b 100644
--- a/compiler/crates/relay-lsp/src/utils.rs
+++ b/compiler/crates/relay-lsp/src/utils.rs
@@ -181,6 +181,9 @@ pub fn extract_feature_from_text(
                             enable_strict_resolver_flavors: &project_config
                                 .feature_flags
                                 .relay_resolvers_enable_strict_resolver_flavors,
+                            allow_legacy_verbose_syntax: &project_config
+                                .feature_flags
+                                .relay_resolvers_allow_legacy_verbose_syntax,
                         },
                     )
                 })
diff --git a/scripts/config.tests.json b/scripts/config.tests.json
index e0766f58a5eb9..c5ec3263eb856 100644
--- a/scripts/config.tests.json
+++ b/scripts/config.tests.json
@@ -64,6 +64,9 @@
             "blocked_by",
             "text"
           ]
+        },
+        "relay_resolvers_allow_legacy_verbose_syntax": {
+          "kind": "enabled"
         }
       },
       "language": "flow"