- Updated the release notes to include the new version v0.9.2.
- Added important changes including a bug fix related to the asio thread executor and minor documentation and benchmark updates.
- Bumped the version number from 0.9.0 to 0.9.1 in the VERSION file.
- Updated the release notes to reflect the new version, replacing references from v0_9_0.md to v0_9_1.md.