# Rust 1.62.0 prerelease testing **URL:** \ **Category:** announcements\ **Created:** [June 28, 2022, 8:58am UTC](https://internals.rust-lang.org/t/rust-1-62-0-prerelease-testing/16913 "2022-06-28T08:58:49Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![pietroalbini](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/pietroalbini/32/10694_2.png) [@pietroalbini](https://internals.rust-lang.org/u/pietroalbini)\ **Post date:** [June 28, 2022, 8:58am UTC](https://internals.rust-lang.org/t/rust-1-62-0-prerelease-testing/16913/1 "2022-06-28T08:58:49Z")
The 1.62.0 pre-release is ready for testing. The release is scheduled for this Thursday, June 30th. [Release notes can be found here.](https://github.com/rust-lang/rust/blob/stable/RELEASES.md#version-1620-2022-06-30) You can try it out locally by running: ```nohighlight RUSTUP_DIST_SERVER=https://dev-static.rust-lang.org rustup update stable ``` The index is [https://dev-static.rust-lang.org/dist/2022-06-27/index.html](https://dev-static.rust-lang.org/dist/2022-06-27/index.html). You can leave feedback here. The release team is also thinking about changes to our pre-release process: we'd love your feedback [on this GitHub issue](https://github.com/rust-lang/release-team/issues/16). ---
**Author:** ![PoignardAzur](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/poignardazur/32/6464_2.png) [@PoignardAzur](https://internals.rust-lang.org/u/PoignardAzur)\ **Post date:** [June 28, 2022, 11:11am UTC](https://internals.rust-lang.org/t/rust-1-62-0-prerelease-testing/16913/2 "2022-06-28T11:11:49Z")
> - [Stabilize `#[derive(Default)]` on enums with a `#[default]` variant](https://github.com/rust-lang/rust/pull/94457/) And there was much rejoicing in the streets. ---
**Author:** ![Kixunil](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/kixunil/32/4110_2.png) [@Kixunil](https://internals.rust-lang.org/u/Kixunil)\ **Post date:** [June 29, 2022, 9:20am UTC](https://internals.rust-lang.org/t/rust-1-62-0-prerelease-testing/16913/3 "2022-06-29T09:20:49Z")
Could the release notes be changed to say " **visibly** uninhabited"? At first I got scared that accepting more code because of uninhabited types would enable API breakages and I had to read through comments to find out it's not the case. I believe it's a very important thing to know. ---
**Author:** ![CAD97](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/cad97/32/3460_2.png) [@CAD97](https://internals.rust-lang.org/u/CAD97)\ **Post date:** [June 29, 2022, 10:44pm UTC](https://internals.rust-lang.org/t/rust-1-62-0-prerelease-testing/16913/4 "2022-06-29T22:44:21Z")
~~The scoped thread API doesn't require `UnwindSafe`. It's worth checking that this is a 100% intentional omission.~~ ~~[https://rust-lang.zulipchat.com/#narrow/stream/219381-t-libs/topic/.60UnwindSafe.60.20may.20be.20essentially.20dead](https://rust-lang.zulipchat.com/#narrow/stream/219381-t-libs/topic/.60UnwindSafe.60.20may.20be.20essentially.20dead)~~ (Sorry, false alarm) ---
**Author:** ![Mark\_Simulacrum](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/mark_simulacrum/32/2853_2.png) [@Mark\_Simulacrum](https://internals.rust-lang.org/u/Mark_Simulacrum)\ **Post date:** [June 30, 2022, 1:14am UTC](https://internals.rust-lang.org/t/rust-1-62-0-prerelease-testing/16913/5 "2022-06-30T01:14:26Z")
I think we'd be happy to accept a PR with any clarifications, though at this point it won't make it into the actual release (and likely won't land in time on master either). I think given that the PR's title (clicking through) and description both say this it's probably okay as-is, though of course we can always do better. Otherwise we'll likely pick it up in a few weeks with the next round of release notes (for 1.63). ---
**Author:** ![Kixunil](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/kixunil/32/4110_2.png) [@Kixunil](https://internals.rust-lang.org/u/Kixunil)\ **Post date:** [June 30, 2022, 4:39pm UTC](https://internals.rust-lang.org/t/rust-1-62-0-prerelease-testing/16913/6 "2022-06-30T16:39:37Z")
Hmm, I guess putting the emphasis and explanation into the PR description would be better. I had to scroll down to find out. Also missed the word "visible" ---
**Author:** ![system](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/system/32/14092_2.png) [@system](https://internals.rust-lang.org/u/system)\ **Post date:** [September 28, 2022, 4:39pm UTC](https://internals.rust-lang.org/t/rust-1-62-0-prerelease-testing/16913/7 "2022-09-28T16:39:56Z")
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