Finalize release notes for v9.1.0 release (#132065)

* Finalize docs for v9.1.0 release

docs/release-notes/breaking-changes.md

@@ -12,9 +12,6 @@ If you are migrating from a version prior to version 9.0, you must first upgrade
 
 % ## Next version [elasticsearch-nextversion-breaking-changes]
 
-```{applies_to}
-stack: coming 9.1.0
-```
 ## 9.1.0 [elasticsearch-9.1.0-breaking-changes]
 
 Discovery-Plugins:
@@ -119,7 +116,6 @@ Test the upgrade in a non-production environment. Adapt your configuration to th
 For more information, view [#126843](https://github.com/elastic/elasticsearch/pull/126843) (issue: [#120993](https://github.com/elastic/elasticsearch/issues/120993))
 :::
 
-
 ## 9.0.4 [elasticsearch-9.0.4-breaking-changes]
 
 No breaking changes in this version.

docs/release-notes/changelog-bundles/9.1.0.yml

@@ -1,6 +1,6 @@
 version: 9.1.0
-released: false
-generated: 2025-07-26T00:06:59.671585841Z
+released: true
+generated: 2025-07-29T11:34:08.731686399Z
 changelogs:
   - pr: 105773
     summary: Inject an unfollow action before executing a downsample action in ILM

docs/release-notes/deprecations.md

@@ -16,9 +16,6 @@ To give you insight into what deprecated features you’re using, {{es}}:
 
 % ## Next version [elasticsearch-nextversion-deprecations]
 
-```{applies_to}
-stack: coming 9.1.0
-```
 ## 9.1.0 [elasticsearch-9.1.0-deprecations]
 
 There are no deprecations associated with this release.

docs/release-notes/index.md

@@ -21,9 +21,6 @@ To check for security updates, go to [Security announcements for the Elastic sta
 % *
 
 ## 9.1.0 [elasticsearch-9.1.0-release-notes]
-```{applies_to}
-stack: coming 9.1.0
-```
 
 ### Highlights [elasticsearch-9.1.0-highlights]
 
@@ -364,7 +361,6 @@ Machine Learning:
 * Mark token pruning for sparse vector as GA [#128854](https://github.com/elastic/elasticsearch/pull/128854)
 * Move to the Cohere V2 API for new inference endpoints [#129884](https://github.com/elastic/elasticsearch/pull/129884)
 * Semantic Text Chunking Indexing Pressure [#125517](https://github.com/elastic/elasticsearch/pull/125517)
-* Track memory used in the hierarchical results normalizer [#2831](https://github.com/elastic/ml-cpp/pull/2831)
 * Upgrade AWS v2 SDK to 2.30.38 [#124738](https://github.com/elastic/elasticsearch/pull/124738)
 * [Inference API] Propagate product use case http header to EIS [#124025](https://github.com/elastic/elasticsearch/pull/124025)
 * [ML] Add HuggingFace Chat Completion support to the Inference Plugin [#127254](https://github.com/elastic/elasticsearch/pull/127254)