Hello and welcome to another issue of This Week in Rust! Rust is a systems language pursuing the trifecta: safety, concurrency, and speed. This is a weekly summary of its progress and community. Want something mentioned? Send me an email! Want to get involved? We love contributions.

This Week in Rust is openly developed on GitHub. If you find any errors or omissions in this week's issue, please submit a PR.

What's cooking on master?

115 pull requests were merged in the last week, and 2 RFC PRs.

Now you can follow breaking changes as they happen!

Breaking Changes

Other Changes

New Contributors

  • Brendan Graetz
  • Carol (Nichols || Goulding)
  • critiqjo
  • Dominic van Berkel
  • Hech
  • Jan Bujak
  • J Bailey
  • jooert
  • Jordan Humphreys
  • Poga Po
  • sinkuu
  • Xuefeng Wu

Approved RFCs

New RFCs


The current beta is rustc 1.0.0-beta.4 (850151a75 2015-04-30).

There were 2 PRs this week landing backports to beta.

Notable Links

Project Updates

Upcoming Events

If you are running a Rust event please add it to the calendar to get it mentioned here. Email Erick Tryzelaar or Brian Anderson for access.

Quote of the Week

"Ultimately, I think this all boils down to the fact that borrowck only cares about reachable values. A leaked value isn't reachable, therefore it doesn't matter that it had a lifetime associated with it and technically outlives that lifetime, since it's not reachable no undefined behavior can be invoked."

Insight from kballard on the safety of linking.

Thanks to Gankro for the tip. Submit your quotes for next week!.