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Test host-toolchain CI jobs on ubuntu-26.04 - #5867
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GitHub moves ubuntu-latest to Ubuntu 26.04 between 2026-10-19 and 2026-11-19 (actions/runner-images#14748). Run the jobs that use the runner's own compilers and tools on ubuntu-26.04 now to find breakage before the rollout. Container jobs are unaffected. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
On ubuntu-26.04, lcov reports a mismatched end line for a function of the test helper value_in_range_of_test.hpp in the 32-bit build and stops (ci_test_coverage). The report only covers the library sources, so ignore the inconsistency like the mismatch and unused errors before. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
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The Visual Studio 2019 job (Release, x86, JSON_ImplicitConversions=OFF) builds the tests for all standards and takes 49 to 57 minutes when it passes, close to AppVeyor's 60-minute limit per job. In build 54917118 (#5867), build 54917312 (#5620), and build 54930878 (#5851) it was stopped at the limit while still compiling. Split it with JSON_TestShard like the Visual Studio 2017 jobs. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
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GitHub moves
ubuntu-latestfrom Ubuntu 24.04 to 26.04 between 2026-10-19 and 2026-11-19 (actions/runner-images#14748). During the rollout, a job may land on either image.Jobs that run in a container (
gcc:*,silkeh/clang:*,ubuntu:*, Intel, NVIDIA) only use the host for Docker and are unaffected. This PR switches the jobs that use the runner's own toolchain (GCC, gcov/lcov, Valgrind, Python/pip) toubuntu-26.04so breakage shows up now:ubuntu.yml:ci_meson_install,ci_infer,ci_static_analysis_ubuntu,ci_test_coverage,ci_emscripten,ci_test_documentationcheck_amalgamation.yml:checkcodeql-analysis.yml:CodeQL-Buildsemgrep.yml:semgrepNot switched because they don't run on pull requests:
check_docs_links.ymlandpublish_documentation.yml. They use the samemake install_venvasci_test_build_documentation, which this PR does cover. Pure API jobs (labeler, stale, dependency review, scorecards, comment/cancel helpers) are left alone.Once CI is green or fixed, this PR can be merged as is (pinning
ubuntu-26.04explicitly) or changed back toubuntu-latest.Public API
No breaking changes: this only touches CI workflows.
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