chore: Add PR to rack changelog

Author: kaylareopelle

instrumentation/rack/CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ### v0.27.0 / 2025-08-19
 
-* ADDED: Rack semantic stability opt in
+* ADDED: Add `OTEL_SEMCONV_STABILITY_OPT_IN` environment variable compatibility [#1594](https://github.com/open-telemetry/opentelemetry-ruby-contrib/pull/1594)
 
 ### v0.26.0 / 2025-01-16
 
@@ -63,21 +63,21 @@
 
 ### v0.23.1 / 2023-06-05
 
-* FIXED: Base config options 
+* FIXED: Base config options
 
 ### v0.23.0 / 2023-04-17
 
-* BREAKING CHANGE: Remove retain_middleware_names Rack Option 
-* BREAKING CHANGE: Drop support for EoL Ruby 2.7 
+* BREAKING CHANGE: Remove retain_middleware_names Rack Option
+* BREAKING CHANGE: Drop support for EoL Ruby 2.7
 
-* ADDED: Remove retain_middleware_names Rack Option 
-* ADDED: Drop support for EoL Ruby 2.7 
-* ADDED: Use Rack::Events for instrumentation 
+* ADDED: Remove retain_middleware_names Rack Option
+* ADDED: Drop support for EoL Ruby 2.7
+* ADDED: Use Rack::Events for instrumentation
 
 ### v0.22.1 / 2023-01-14
 
-* DOCS: Fix gem homepage 
-* DOCS: More gem documentation fixes 
+* DOCS: Fix gem homepage
+* DOCS: More gem documentation fixes
 
 ### v0.22.0 / 2022-11-16
 
@@ -90,17 +90,17 @@
 ### v0.21.0 / 2022-06-09
 
 * Upgrading Base dependency version
-* FIXED: Broken test file requirements 
+* FIXED: Broken test file requirements
 
 ### v0.20.2 / 2022-05-02
 
-* FIXED: Update server instrumentation to not reflect 400 status as error 
+* FIXED: Update server instrumentation to not reflect 400 status as error
 
 ### v0.20.1 / 2021-12-01
 
-* FIXED: [Instrumentation Rack] Log content type http header 
-* FIXED: Use monotonic clock where possible 
-* FIXED: Rack to stop using api env getter 
+* FIXED: [Instrumentation Rack] Log content type http header
+* FIXED: Use monotonic clock where possible
+* FIXED: Rack to stop using api env getter
 
 ### v0.20.0 / 2021-10-06
 
@@ -118,18 +118,18 @@ forwards the uri path.  More details on this is available in the readme.
 
 ### v0.19.2 / 2021-08-18
 
-* FIXED: Rack middleware assuming script_name presence 
+* FIXED: Rack middleware assuming script_name presence
 
 ### v0.19.1 / 2021-08-12
 
-* DOCS: Update docs to rely more on environment variable configuration 
+* DOCS: Update docs to rely more on environment variable configuration
 
 ### v0.19.0 / 2021-06-23
 
-* BREAKING CHANGE: Total order constraint on span.status= 
+* BREAKING CHANGE: Total order constraint on span.status=
 
-* ADDED: Add Tracer.non_recording_span to API 
-* FIXED: Total order constraint on span.status= 
+* ADDED: Add Tracer.non_recording_span to API
+* FIXED: Total order constraint on span.status=
 
 ### v0.18.0 / 2021-05-21