diff --git a/.github/vale/styles/OpenSearch/AcronymParentheses.yml b/.github/vale/styles/OpenSearch/AcronymParentheses.yml
index 4c515914e3..bebef2c77d 100644
--- a/.github/vale/styles/OpenSearch/AcronymParentheses.yml
+++ b/.github/vale/styles/OpenSearch/AcronymParentheses.yml
@@ -11,6 +11,7 @@ second: '(?:\b[A-Za-z-]+ )+\(([A-Z]{1,3}\/?[A-Z]{1,3}\d{0,2})\)'
 exceptions:
   - API
   - ASCII
+  - AWS
   - BASIC
   - BM25
   - CPU
diff --git a/.github/vale/styles/OpenSearch/HeadingCapitalization.yml b/.github/vale/styles/OpenSearch/HeadingCapitalization.yml
index 28ff0aa023..a6b80b9d75 100644
--- a/.github/vale/styles/OpenSearch/HeadingCapitalization.yml
+++ b/.github/vale/styles/OpenSearch/HeadingCapitalization.yml
@@ -2,4 +2,9 @@ extends: capitalization
 message: "'%s' is a heading and should be in sentence case."
 level: error
 scope: heading
-match: $sentence
\ No newline at end of file
+match: $sentence
+threshold: 1
+indicators:
+  - ":"
+exceptions:
+  - k    # ignores lowercase k-NN
\ No newline at end of file
diff --git a/.github/vale/styles/OpenSearch/SignatureV4.yml b/.github/vale/styles/OpenSearch/SignatureV4.yml
new file mode 100644
index 0000000000..c3a3573a74
--- /dev/null
+++ b/.github/vale/styles/OpenSearch/SignatureV4.yml
@@ -0,0 +1,11 @@
+extends: substitution
+message: "'%s': Use 'AWS Signature Version 4' instead of '%s' on first appearance. Then, Signature Version 4 may be used. Only use SigV4 when space is limited."
+ignorecase: true
+link: 'https://github.com/opensearch-project/documentation-website/blob/main/TERMS.md'
+level: warning
+action:
+  name: replace
+swap:
+  sigv4: Signature Version 4
+  AWS sigv4: AWS Signature Version 4
+  
\ No newline at end of file
diff --git a/.github/vale/styles/OpenSearch/TableHeadings.yml b/.github/vale/styles/OpenSearch/TableHeadings.yml
index 49e1e96f99..96cb8621fc 100644
--- a/.github/vale/styles/OpenSearch/TableHeadings.yml
+++ b/.github/vale/styles/OpenSearch/TableHeadings.yml
@@ -3,3 +3,5 @@ message: "'%s' is a table heading and should be in sentence case."
 level: error
 scope: table.header
 match: $sentence
+exceptions:
+  - k    # ignores lowercase k-NN
diff --git a/.github/vale/styles/Vocab/OpenSearch/Plugins/accept.txt b/.github/vale/styles/Vocab/OpenSearch/Plugins/accept.txt
index e74261cdac..b905a30f20 100644
--- a/.github/vale/styles/Vocab/OpenSearch/Plugins/accept.txt
+++ b/.github/vale/styles/Vocab/OpenSearch/Plugins/accept.txt
@@ -1,6 +1,7 @@
 Alerting plugin
 Anomaly Detection plugin
 Asynchronous Search plugin
+Crypto plugin
 Cross-Cluster Replication plugin
 Maps plugin
 Notebooks plugin
diff --git a/.github/vale/styles/Vocab/OpenSearch/Products/accept.txt b/.github/vale/styles/Vocab/OpenSearch/Products/accept.txt
index 0e2a566db1..25e824ce49 100644
--- a/.github/vale/styles/Vocab/OpenSearch/Products/accept.txt
+++ b/.github/vale/styles/Vocab/OpenSearch/Products/accept.txt
@@ -53,6 +53,7 @@ Okta
 Open Distro
 OpenID Connect
 OpenSearch
+OpenSearch Benchmark
 OpenSearch Dashboards
 OpenSearch Project
 OpenSearch Service
@@ -73,7 +74,6 @@ Querqy
 Query Workbench
 RPM Package Manager
 Ruby
-SigV4 
 Simple Schema for Observability
 Tableau
 TorchScript
diff --git a/.github/vale/styles/Vocab/OpenSearch/Words/accept.txt b/.github/vale/styles/Vocab/OpenSearch/Words/accept.txt
index 26b9d99616..c2e46b8db0 100644
--- a/.github/vale/styles/Vocab/OpenSearch/Words/accept.txt
+++ b/.github/vale/styles/Vocab/OpenSearch/Words/accept.txt
@@ -2,6 +2,7 @@
 [Aa]utomapping
 [Aa]utopopulate
 [Bb]ackoff
+[Bb]ackporting
 [Bb]ackpressure
 [Bb]asemap
 [Bb]igram
@@ -53,6 +54,7 @@ Levenshtein
 [Ll]ookups?
 [Ll]ossy
 [Ll]owercases?d?
+[Mm]acrobenchmarks?
 [Mm]isorder
 [Mm]ultifield
 [Mm]ultiline
@@ -83,7 +85,9 @@ pebibyte
 [Rr]ewriter
 [Rr]ollup
 [Rr]unbooks?
+[Ss]harding
 [Ss]erverless
+[Ss]harding
 [Ss]ignificand
 stdout
 [Ss]ubaggregation
diff --git a/.github/vale/tests/test-headings.md b/.github/vale/tests/test-headings.md
new file mode 100644
index 0000000000..6991caf183
--- /dev/null
+++ b/.github/vale/tests/test-headings.md
@@ -0,0 +1,61 @@
+# This should not be flagged
+
+---
+
+# Example with OpenSearch should not be flagged
+
+---
+
+# Example with Canada should not be flagged
+
+---
+
+# Example with: OpenSearch should not be flagged
+
+---
+
+# This: Should not be flagged
+
+---
+
+# Step 2: (Optional) Test OpenSearch should not be flagged
+
+---
+
+# Example with something else: Should not be flagged
+
+---
+
+# Example 2: Should not be flagged
+
+---
+
+# Example: should be flagged
+
+---
+
+# Example 3: should be flagged
+
+---
+
+# Example with something else: should be Flagged twice
+
+---
+
+# Example With something else: should be flagged twice
+
+---
+
+# Example: with OpenSearch should be flagged
+
+---
+
+# this should be flagged
+
+---
+
+# This Should Be Flagged
+
+---
+
+The King of England should not be flagged. 
\ No newline at end of file
diff --git a/.github/vale/tests/test-style-neg.md b/.github/vale/tests/test-style-neg.md
index 81a91e99ae..98f5837bc1 100644
--- a/.github/vale/tests/test-style-neg.md
+++ b/.github/vale/tests/test-style-neg.md
@@ -54,6 +54,8 @@ This sentence tests rollover as a noun. To roll over, we test this as a verb.
 
 This sentence tests setup as a noun. To set up, we test this as a verb.
 
+This sentence tests AWS Signature Version 4.
+
 This sentence tests the "simple" rule by doing it.
 
 These two sentences. Test the spacing punctuation.
diff --git a/.github/vale/tests/test-style-pos.md b/.github/vale/tests/test-style-pos.md
index a435cb0244..f9ac0e716e 100644
--- a/.github/vale/tests/test-style-pos.md
+++ b/.github/vale/tests/test-style-pos.md
@@ -54,6 +54,8 @@ This sentence tests roll-over as a noun. To rollover, we test this as a verb.
 
 This sentence tests set-up as a noun. To setup, we test this as a verb.
 
+This sentence tests AWS SigV4 and sigv4. 
+
 This sentence simply tests the "simple" rule by just doing it.
 
 These two sentences.  Test the spacing punctuation.
diff --git a/.vale.ini b/.vale.ini
index 02f16dd372..2b195b4daf 100644
--- a/.vale.ini
+++ b/.vale.ini
@@ -52,6 +52,7 @@ OpenSearch.RolloverNoun = YES
 OpenSearch.RolloverVerb = YES
 OpenSearch.SetupNoun = YES
 OpenSearch.SetupVerb = YES
+OpenSearch.SignatureV4 = YES
 OpenSearch.Simple = YES
 OpenSearch.SpacingPunctuation = YES
 OpenSearch.SpacingSlash = YES
diff --git a/_benchmark/index.md b/_benchmark/index.md
index 010aa8b170..dcfa629c5d 100644
--- a/_benchmark/index.md
+++ b/_benchmark/index.md
@@ -13,7 +13,7 @@ OpenSearch Benchmark is a macrobenchmark utility provided by the [OpenSearch Pro
 
 - Tracking the overall performance of an OpenSearch cluster.
 - Informing decisions about when to upgrade your cluster to a new version.
-- Determining how changes to your workflow—such as modifying mappings or queries—might impact your cluster.
+- Determining how changes to your workflow---such as modifying mappings or queries---might impact your cluster.
 
 OpenSearch Benchmark can be installed directly on a compatible host running Linux and macOS. You can also run OpenSearch Benchmark in a Docker container. See [Installing OpenSearch Benchmark]({{site.url}}{{site.baseurl}}/benchmark/installing-benchmark/) for more information.