[apidiff] Update reference/stable versions to .NET 10 / Xcode 26.2.

[rolfbjarne]

No description provided.

[Copilot]

Pull request overview

This PR updates the stable NuGet reference versions used for API diff comparisons from Xcode 26.1 (.NET 10) to Xcode 26.2 (.NET 10). These versions are used by the apidiff tool to download stable NuGet packages from nuget.org and compare them against the current build to detect API changes and breaking changes.

• Updated all four platform stable NuGet version variables (iOS, tvOS, macOS, MacCatalyst) from version 26.1.10494 to 26.2.10191
• Clarified documentation that API diff updates apply to the main branch

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
Make.config	Updated STABLE_NUGET_VERSION_* variables for all four platforms (iOS, tvOS, macOS, MacCatalyst) to reference Xcode 26.2 / .NET 10 stable NuGet packages
docs/ReleaseCheckList.md	Added clarification that API diff variable updates are for the main branch

[vs-mobiletools-engineering-service2]

✅ [CI Build #8163d28] Build passed (Build packages) ✅

Pipeline on Agent
Hash: 8163d286b1ae23a795a60db27db326cc8e7ae800 [PR build]

[vs-mobiletools-engineering-service2]

✅ [PR Build #8163d28] Build passed (Detect API changes) ✅

Pipeline on Agent
Hash: 8163d286b1ae23a795a60db27db326cc8e7ae800 [PR build]

[vs-mobiletools-engineering-service2]

✅ API diff for current PR / commit

NET (empty diffs)

• iOS: vsdrops gist ( No breaking changes )
• tvOS: vsdrops gist ( No breaking changes )
• MacCatalyst: vsdrops gist ( No breaking changes )
• macOS: vsdrops gist ( No breaking changes )

✅ API diff vs stable

NET (empty diffs)

• iOS: vsdrops gist ( No breaking changes )
• tvOS: vsdrops gist ( No breaking changes )
• MacCatalyst: vsdrops gist ( No breaking changes )
• macOS: vsdrops gist ( No breaking changes )

ℹ️ Generator diff

Generator Diff: vsdrops (html) vsdrops (raw diff) gist (raw diff) - Please review changes)

Pipeline on Agent
Hash: 8163d286b1ae23a795a60db27db326cc8e7ae800 [PR build]

[vs-mobiletools-engineering-service2]

✅ [CI Build #8163d28] Build passed (Build macOS tests) ✅

Pipeline on Agent
Hash: 8163d286b1ae23a795a60db27db326cc8e7ae800 [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build #8163d28] Tests on macOS X64 - Mac Sonoma (14) passed 💻

✅ All tests on macOS X64 - Mac Sonoma (14) passed.

Pipeline on Agent
Hash: 8163d286b1ae23a795a60db27db326cc8e7ae800 [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build #8163d28] Tests on macOS M1 - Mac Ventura (13) passed 💻

✅ All tests on macOS M1 - Mac Ventura (13) passed.

Pipeline on Agent
Hash: 8163d286b1ae23a795a60db27db326cc8e7ae800 [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build #8163d28] Tests on macOS arm64 - Mac Tahoe (26) passed 💻

✅ All tests on macOS arm64 - Mac Tahoe (26) passed.

Pipeline on Agent
Hash: 8163d286b1ae23a795a60db27db326cc8e7ae800 [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build #8163d28] Tests on macOS arm64 - Mac Sequoia (15) passed 💻

✅ All tests on macOS arm64 - Mac Sequoia (15) passed.

Pipeline on Agent
Hash: 8163d286b1ae23a795a60db27db326cc8e7ae800 [PR build]

[vs-mobiletools-engineering-service2]

❌ [CI Build #8163d28] Tests on macOS M1 - Mac Monterey (12) failed ❌

Failed tests are:

• linksdk
• monotouch-test

Pipeline on Agent
Hash: 8163d286b1ae23a795a60db27db326cc8e7ae800 [PR build]