diff --git a/docs/src/main/sphinx/release.md b/docs/src/main/sphinx/release.md
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--- a/docs/src/main/sphinx/release.md
+++ b/docs/src/main/sphinx/release.md
@@ -6,6 +6,7 @@
 ```{toctree}
 :maxdepth: 1
 
+release/release-446
 release/release-445
 release/release-444
 release/release-443
diff --git a/docs/src/main/sphinx/release/release-446.md b/docs/src/main/sphinx/release/release-446.md
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@@ -0,0 +1,69 @@
+# Release 446 (1 May 2024)
+
+## General
+
+* Improve performance of `INSERT` statements into partitioned tables when the
+  `retry_policy` configuration property is set to `TASK`. ({issue}`21661 `)
+* Improve performance of queries with complex grouping operations.  ({issue}`21726`)
+* Reduce delay before killing queries when the cluster runs out of memory. ({issue}`21719`)
+* Prevent assigning null values to non-null columns as part of a `MERGE`
+  statement. ({issue}`21619`)
+* Fix `CREATE CATALOG` statements including quotes in catalog names. ({issue}`21399`)
+* Fix potential query failure when a column name ends with a `:`. ({issue}`21676`)
+* Fix potential query failure when a [SQL routine](/routines) contains a label
+  reference in a `LEAVE`, `ITERATE`, `REPEAT`, or `WHILE` statement. ({issue}`21682`)
+* Fix query failure when [SQL routines](/routines) use the `NULLIF` or `BETWEEN`
+  functions. ({issue}`19820`)
+* Fix potential query failure due to worker nodes running out of memory in
+  concurrent scenarios. ({issue}`21706`)
+
+## BigQuery connector
+
+* Improve performance when listing table comments. ({issue}`21581`)
+* {{breaking}} Enable `bigquery.arrow-serialization.enabled` by default. This
+  requires `--add-opens=java.base/java.nio=ALL-UNNAMED` in
+  `jvm-config`. ({issue}`21580`)
+
+## Delta Lake connector
+
+* Fix failure when reading from Azure file storage and the schema, table, or
+  column name contains non-alphanumeric characters. ({issue}`21586`)
+* Fix incorrect results when reading a partitioned table with a
+  [deletion vector](https://docs.delta.io/latest/delta-deletion-vectors.html). ({issue}`21737`)
+
+## Hive connector
+
+* Add support for reading S3 objects restored from Glacier storage. ({issue}`21164`)
+* Fix failure when reading from Azure file storage and the schema, table, or
+  column name contains non-alphanumeric characters. ({issue}`21586`)
+* Fix failure when listing Hive views with unsupported syntax. ({issue}`21748`)
+
+## Iceberg connector
+
+* Add support for the [Snowflake catalog](iceberg-snowflake-catalog). ({issue}`19362`)
+* Automatically use `varchar` as a type during table creation when `char` is
+  specified. ({issue}`19336`, {issue}`21515`)
+* Deprecate the `schema` and `table` arguments for the `table_changes` function
+  in favor of `schema_name` and `table_name`, respectively. ({issue}`21698`)
+* Fix failure when executing the `migrate` procedure with partitioned Hive
+  tables on Glue. ({issue}`21391`)
+* Fix failure when reading from Azure file storage and the schema, table, or
+  column name contains non-alphanumeric characters. ({issue}`21586`)
+
+## Pinot connector
+
+* Fix query failure when a predicate contains a `'`. ({issue}`21681`)
+
+## Snowflake connector
+
+* Add support for the `unsupported-type-handling` and
+  `jdbc-types-mapped-to-varchar` type mapping configuration properties. ({issue}`21528`)
+
+## SPI
+
+* Remove support for `@RemoveInput` as an annotation for aggregation functions.
+  A `WindowAggregation` can be declared in `@AggregationFunction` instead, which
+   supports input removal. ({issue}`21349`)
+* Extend `QueryCompletionEvent` with various aggregated, per-stage, per-task
+  distribution statistics. New information is available in
+  `QueryCompletedEvent.statistics.taskStatistics`. ({issue}`21694`)