fix changelog and gen-requirements

Signed-off-by: emdneto <[email protected]>

CHANGELOG.md

@@ -17,7 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#4094](https://github.com/open-telemetry/opentelemetry-python/pull/4094))
 - Implement events sdk
   ([#4176](https://github.com/open-telemetry/opentelemetry-python/pull/4176))
-- Add support to protobuf5
+- Add support to protobuf 5+ and drop support to protobuf 3 and 4
   ([#4206](https://github.com/open-telemetry/opentelemetry-python/pull/4206))
 
 ## Version 1.27.0/0.48b0 (2024-08-28)

gen-requirements.txt

@@ -1,6 +1,5 @@
-# This version of grpcio-tools ships with protoc 3.19.4 which appears to be compatible with
-# both protobuf 3.19.x and 4.x (see https://github.com/protocolbuffers/protobuf/issues/11123).
-# Bump this version with caution to preserve compatibility with protobuf 3.
-# https://github.com/open-telemetry/opentelemetry-python/blob/main/opentelemetry-proto/pyproject.toml#L28
+# Use caution when bumping this version to ensure compatibility with the currently supported protobuf version.
+# Pinning this to the oldest grpcio version that supports protobuf 5 helps avoid RuntimeWarning messages
+# from the generated protobuf code and ensures continued stability for newer grpcio versions.
 grpcio-tools==1.63.2
 mypy-protobuf~=3.5.0