Bump main to 18.10.0 after vs18.9 snap - #14216
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Phase 3 of the 18.9 release (dotnet#14213). - VersionPrefix 18.9.0 -> 18.10.0 (vs18.9 was snapped from main; main now produces 18.10 previews). - PackageValidationBaselineVersion -> 18.9.0-preview-26330-01, the latest 18.9.0-preview build reachable from vs18.9 (branch-point main build 20260630.1 @ 0ac5599, published to the dotnet-tools feed). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
Updates main’s versioning properties after the vs18.9 branch snap so subsequent main builds are branded as the next (18.10) release line while maintaining a correct API-compat baseline for validation.
Changes:
- Bump
VersionPrefixfrom18.9.0to18.10.0onmain. - Update
PackageValidationBaselineVersionto18.9.0-preview-26330-01to align API-compat validation with the post-snap baseline described in the PR.
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This was referenced Sep 10, 2026
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This was referenced Sep 11, 2026
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Phase 3 of the 18.9 release (#14213).
Bumps
mainto the next version now thatvs18.9has been snapped.VersionPrefix18.9.0→18.10.0PackageValidationBaselineVersion→18.9.0-preview-26330-0118.9.0-preview-NNNNN-NNbuild reachable fromvs18.9: the branch-pointmainbuild (official build pipeline 9434, run20260630.1, source0ac5599=merge-base(main, vs18.9)), published to the dotnet-tools feed.vs18.9had no successful pre-stabilization preview build (its only run failed), so per the release skill procedure we fall back to the branch-pointmainbuild. The later18.9.0-preview-26330-101was intentionally not used — it is a post-branchmainbuild carrying 18.10 content under 18.9 branding.3.3 If CI fails on API-compat, regenerate suppressions with
dotnet pack MSBuild.Dev.slnf /p:ApiCompatGenerateSuppressionFile=true(fix-up only).