2026-01-05— Last Week in Carbon

[josh11b]

Updates on leads issues

• Decisions
  • (none)
• New issues
  • (none)
• Active discussions
  • (none)

Updates on proposals

• Decisions
  • (none)
• New RFC proposals
  • #6015 Implement namespace qualified globals
• Active discussions
  • (none)

Updates on moderation across our community spaces (Discord and GitHub)

• Activity in the past week:
  • 4 authors have pushed 10 commits to trunk and 10 commits to all branches.
  • On trunk, 61 files have changed and there have been 674 additions and 423 deletions.
  • We merged 10 PRs, opened 6 PRs, closed 1 issue, and opened 1 new issue.

Activity on toolchain

• #toolchain FYI regarding #6536: Jujitsu is introducing some changes in its conflict markers.
• #toolchain #6549 is (almost) the last PR needed for full support for building our own runtimes.
  • It's really slow, though, because Bazel can't use the runtimes cache.
  • This will fix some problems with interop examples, but not the pure-Carbon linking errors we're seeing on Compiler Explorer.
• PRs:
  • ref in #6539
  • runtimes in #6542 #6537 #6546 #6547
  • function returns in #6490
  • dependencies in #6552 #6544
  • others in #6536 #6545

Activity on memory safety

• #safety Safety Unit No. 31: const and mutable
• #safety Statically verified C
  • Uses rich, verbose function annotations

Other active discussions

These include Discord Chat, GitHub Discussions, or open discussion sessions.

• #error-handling Post about error model convergence in recent major languages.
• #strategy NDC Toronto submissions close at end of December. Chandler has drafted some proposals.
• #functions Post about performance of lambda-like features in C.
• #getting-started Resources for getting started with documentation PRs?
  • Design style guide
  • CONTRIBUTING.md
  • Look at other documentation PRs

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