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[xcode26.6] Bump to Xcode 26.6 Release Candidate 2#25744

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[xcode26.6] Bump to Xcode 26.6 Release Candidate 2#25744
dalexsoto wants to merge 4 commits into
xcode26.6from
dev/alex/xc26.6rc2

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@dalexsoto dalexsoto commented Jun 18, 2026

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Copilot AI review requested due to automatic review settings June 18, 2026 19:01
@dalexsoto dalexsoto requested a review from rolfbjarne as a code owner June 18, 2026 19:01
Copilot AI reviewed Jun 18, 2026
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Pull request overview

Updates the repository’s build configuration to use Xcode 26.6 Release Candidate 2, ensuring local/CI builds target the intended Xcode RC for this release branch.

Changes:

  • Updated the Xcode download URL to the RC2 .xip.
  • Updated XCODE_DEVELOPER_ROOT to point to the RC2 app bundle name.

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@dalexsoto

dalexsoto commented Jun 18, 2026

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@copilot can you cherry-pick 5319ba5 to this branch please

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[CI] Run ./configure after provisioning in the simulator test stage
94be712 
The simulator test stage (tools/devops/automation/templates/tests/build.yml)
ran the "Enable Xamarin and configure platforms" step
(./configure --xcode=$(xcode-select -p)) *before* "Provisionator dependencies".

On a bot whose default xcode-select differs from the Xcode we build against
(e.g. during an Xcode beta bump), this captured the wrong Xcode and wrote it as
XCODE_DEVELOPER_ROOT into configure.inc. Make.config -includes configure.inc and
system-dependencies.sh sources it, so that stale path overrode the correct
Make.config XCODE_DEVELOPER_ROOT default. As a result "Provision system
dependencies" (check-system) and the make-based test build both used the wrong
Xcode -- failing with "You must install Xcode <X> ... (found <Y>)" and leaving the
target simulator runtime unprovisioned.

Move the configure step to run after "Provisionator dependencies" (and before
"Provision system dependencies"), mirroring the build stage (build/build.yml),
so configure.inc captures the Xcode that Provisionator just selected.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
(cherry picked from commit 5319ba5)

Co-authored-by: dalexsoto <204671+dalexsoto@users.noreply.github.com>
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Copilot AI commented Jun 18, 2026

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@copilot can you cherry-pick 5319ba5 to this branch please

Done — I cherry-picked 5319ba57ef10f244482deb53d32d14accdcab2fc onto this branch in commit 94be71280f.

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@dalexsoto

dalexsoto commented Jun 18, 2026

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@copilot please revert 94be712 in this branch

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Revert "[CI] Run ./configure after provisioning in the simulator test…
4b10f89 
… stage"

This reverts commit 94be712.

Co-authored-by: dalexsoto <204671+dalexsoto@users.noreply.github.com>

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@copilot please revert 94be712 in this branch

Done — I reverted 94be71280f3333bb9f5f8137ac76e14cf324bcab in commit 4b10f89.

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✅ [PR Build #4b10f89] Build passed (Detect API changes) ✅

Pipeline on Agent
Hash: 4b10f890b03cd52a1b5c3a33fd90bdd70d20dccf [PR build]

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✅ [PR Build #4b10f89] Build passed (Build packages) ✅

Pipeline on Agent
Hash: 4b10f890b03cd52a1b5c3a33fd90bdd70d20dccf [PR build]

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✅ API diff for current PR / commit

NET (empty diffs)

✅ API diff vs stable

NET (empty diffs)

ℹ️ Generator diff

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

Pipeline on Agent
Hash: 4b10f890b03cd52a1b5c3a33fd90bdd70d20dccf [PR build]

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✅ [PR Build #4b10f89] Build passed (Build macOS tests) ✅

Pipeline on Agent
Hash: 4b10f890b03cd52a1b5c3a33fd90bdd70d20dccf [PR build]

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🔥 [CI Build #4b10f89] Test results 🔥

Test results

❌ Tests failed on VSTS: test results

7 tests crashed, 0 tests failed, 81 tests passed.

Failures

❌ fsharp tests

🔥 Failed catastrophically on VSTS: test results - fsharp (no summary found).

Html Report (VSDrops) Download

❌ interdependent-binding-projects tests

🔥 Failed catastrophically on VSTS: test results - interdependent-binding-projects (no summary found).

Html Report (VSDrops) Download

❌ introspection tests

🔥 Failed catastrophically on VSTS: test results - introspection (no summary found).

Html Report (VSDrops) Download

❌ linker tests

🔥 Failed catastrophically on VSTS: test results - linker (no summary found).

Html Report (VSDrops) Download

❌ monotouch tests (iOS)

🔥 Failed catastrophically on VSTS: test results - monotouch_ios (no summary found).

Html Report (VSDrops) Download

❌ monotouch tests (tvOS)

🔥 Failed catastrophically on VSTS: test results - monotouch_tvos (no summary found).

Html Report (VSDrops) Download

❌ xcframework tests

🔥 Failed catastrophically on VSTS: test results - xcframework (no summary found).

Html Report (VSDrops) Download

Successes

✅ cecil: All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (iOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (MacCatalyst): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (macOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (Multiple platforms): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (tvOS): All 1 tests passed. Html Report (VSDrops) Download
✅ framework: All 2 tests passed. Html Report (VSDrops) Download
✅ generator: All 5 tests passed. Html Report (VSDrops) Download
✅ monotouch (MacCatalyst): All 18 tests passed. Html Report (VSDrops) Download
✅ monotouch (macOS): All 18 tests passed. Html Report (VSDrops) Download
✅ msbuild: All 2 tests passed. Html Report (VSDrops) Download
✅ sharpie: All 1 tests passed. Html Report (VSDrops) Download
✅ windows: All 3 tests passed. Html Report (VSDrops) Download
✅ xtro: All 1 tests passed. Html Report (VSDrops) Download

macOS tests

✅ Tests on macOS Monterey (12): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Ventura (13): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Sonoma (14): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Sequoia (15): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Tahoe (26): All 5 tests passed. Html Report (VSDrops) Download

Linux Build Verification

✅ Linux build succeeded

Pipeline on Agent
Hash: 4b10f890b03cd52a1b5c3a33fd90bdd70d20dccf [PR build]

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@dalexsoto @vs-mobiletools-engineering-service2