Update date-check markers for July 2026

[krishna3554]

Summary

• update date-check examples in the contributing guide to July 2026
• leave src/diagnostics/translation.md unchanged because it needs a broader content refresh before its date-check markers should be updated

Part of #2914.

Verification

• CARGO_HOME=/tmp/rustc-date-check-cargo CARGO_TARGET_DIR=/tmp/rustc-date-check-target cargo run --manifest-path ci/date-check/Cargo.toml .
• git diff --check

The temporary Cargo cache and target directories used for verification were removed after the check.

[rustbot]

Thanks for the PR. If you have write access, feel free to merge this PR if it does not need reviews. You can request a review using r? rustc-dev-guide or r? <username>.

[Copilot]

Pull request overview

Updates rustc-dev-guide documentation “date-check” markers to reflect the July 2026 triage cycle, keeping time-sensitive notes and examples current.

Changes:

• Refreshed diagnostics translation warning “date-check” dates to July 2026.
• Updated contributing guide examples for the date-check annotation to July 2026.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/diagnostics/translation.md	Updates the warning block’s date-check markers to July 2026 (and keeps the translation-status note current).
src/contributing.md	Updates date-check annotation examples to July 2026 for contributor guidance.

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View changes since this review

[krishna3554]

r? rustc-dev-guide

[tshepang]

there are no fluent files in the repo, and this page still talks about them

View changes since the review

[rustbot]

Reminder, once the PR becomes ready for a review, use @rustbot ready.

[krishna3554]

Thanks, that makes sense. I removed the src/diagnostics/translation.md date-check update from this PR, since that page needs a broader content refresh before its markers should be updated. The PR now only updates the date-check examples in src/contributing.md.

@rustbot ready

done

[tshepang]

just a note that I should have not approved this since the text was not current, but I now made it so b4b1e00