chore: add 4.86.1 changelog section and verify Public API state#6129
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[WIP] Add 4.86.1 release section to CHANGELOG.md
chore: add 4.86.1 changelog section and verify Public API state
Jul 15, 2026
gladjohn
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Jul 15, 2026
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Pull request overview
Prepares the repo for the 4.86.1 release by adding a new top-of-file changelog section describing the bug-fix PRs included in the patch release, while keeping public API unchanged.
Changes:
- Added a new
4.86.1section above4.86.0. - Documented four bug-fix PRs intended for the 4.86.1 patch release.
Robbie-Microsoft
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Jul 15, 2026
neha-bhargava
approved these changes
Jul 16, 2026
bgavrilMS
approved these changes
Jul 16, 2026
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Prepares the repository for the 4.86.1 release by adding the changelog section and confirming no public API changes.
Changes proposed in this request
4.86.1section at the top ofCHANGELOG.md, immediately above4.86.0, with four bug-fix entries:#6123— mTLS PoP token cache now keys onx5t#S256(full cert DER) instead of public key only; prevents stale token /AADSTS500181after same-key cert renewal#6126— RS256 fallback whenRSACryptoServiceProviderrejects PSS signing#6115— Symbolic-link detection in Unix cache-file write path (O_NOFOLLOW+ lstat pre-check); closes TOCTOU window#6127— Corrected misleading "region required" error messages and doc comments in mTLS PoP flow#6120(test-infra: rename MI test job pool names) intentionally excluded from changelogTesting
All six
PublicAPI.Unshipped.txtfiles (net462,net472,net8.0,net8.0-android,net8.0-ios,netstandard2.0) confirmed empty — the 4.86.0 post-release commit (e1b798fd) already moved all entries toShipped.txt. The 4.86.1 PRs are bug-fixes only; noShipped.txtchanges required.Performance impact
None — documentation-only change.
Documentation