Bump version to 1.20.0

[erikdarlingdata]

Version bump for v1.20.0. Merging this to dev publishes nothing — the release fires when dev is merged to main.

Why minor, not patch

1.19.2 would understate it. #439 adds a source field to every warning in the JSON and MCP output and a new badge in the app and CLI, and #437 changes what an existing analysis rule concludes about a plan. Both are noticeable to a consumer, and one of them is output-shape.

What ships

User-facing

• Only call a conversion non-SARGable when it converts the column (#436) #437 — Rule 12 no longer calls a conversion non-SARGable when it converts the parameter rather than the column. Plans carrying a parameter-side conversion on a scan lose that warning and report the scan's residual predicate instead. Verified against all 38 committed plans: no other plan's verdict moves.
• Say which warnings are SQL Server's and which are ours (#436) #439 — SQL Server's own warnings are now told apart from ours: tagged [SQL Server] in the app and CLI, carried as source in JSON/MCP. Additive, but it changes the bytes of analyze --compact (ExpectedCompactOutputSha256 was rolled deliberately).
• Stop Robot Advice from crashing the app on a deep plan (#430) #431 — Robot Advice no longer takes the app down on a deep plan.
• Give querystore the depth ceiling that analyze got (#430) #438 — querystore gets the same depth ceiling analyze got. It had been failing quietly on deep plans — one ERROR row in summary.txt per plan — for as long as analyze had been fine.
• Stop corrupting memory resolving an open file handle on macOS (#441) #443 — the macOS handle resolver no longer corrupts memory on Apple silicon.
• [BUG] Microsoft Entra MFA fails with 0xwindow_handle_required — WAM needs a parent window handle #425 — Entra MFA works again (WAM parent window handle).

Not user-facing, but relevant to anyone building from this tag

• Move the test suite to Microsoft.Testing.Platform for xunit.v3 4.0.0 (#434) #442 — the suite runs on Microsoft.Testing.Platform now (forced by xunit.v3 4.0.0 dropping VSTest on .NET 10).
• Stop corrupting memory resolving an open file handle on macOS (#441) #443 — dotnet test finishes on macOS for the first time: 307 tests, 305 passing, 13 seconds. It previously did not complete at all.

Issues this closes on release

#430, #435, #436 — all three have been waiting on a release, and two have reporters who supplied a crash log and a repro script.

Verification

• dotnet build clean (the 9 warnings are the pre-existing MCP9005 obsolete-API uses in McpSmokeTests.cs).
• Full dotnet test on macOS ARM64: 307 total, 305 passed, 0 failed, 2 skipped.
• CI green on every constituent PR.
• Same four files the v1.19.1 bump touched, no more.

🤖 Generated with Claude Code

[claude]

Reviewed. Straightforward version bump — verified all four version-bearing spots are consistent: src/Directory.Build.props (<Version>), PlanViewer.Ssms/Properties/AssemblyInfo.cs (both AssemblyVersion and AssemblyFileVersion), and PlanViewer.Ssms/source.extension.vsixmanifest all now read 1.20.0, and CITATION.cff's version/date match. No code changes, no T-SQL, no new warnings. LGTM.