# Rust 1.35.0 pre-release testing

**URL:** https://internals.rust-lang.org/t/rust-1-35-0-pre-release-testing/10226
**Category:** announcements
**Created:** [May 21, 2019, 8:32am UTC](https://internals.rust-lang.org/t/rust-1-35-0-pre-release-testing/10226 "2019-05-21T08:32:24Z")
**Posts on this page:** 5
**Page:** 1

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### 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: [May 21, 2019, 8:32am UTC](https://internals.rust-lang.org/t/rust-1-35-0-pre-release-testing/10226/1 "2019-05-21T08:32:24Z")

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The 1.35.0 pre-release is ready for testing. Rust 1.35.0 is scheduled to be released on Thursday 23rd. Release notes can be found here: [https://github.com/rust-lang/rust/blob/stable/RELEASES.md](https://github.com/rust-lang/rust/blob/stable/RELEASES.md#version-1350-2019-05-23).

You can try it out locally with:

```nohighlight
RUSTUP_DIST_SERVER=https://dev-static.rust-lang.org rustup update stable

```

The index is [https://dev-static.rust-lang.org/dist/2019-05-20/index.html](https://dev-static.rust-lang.org/dist/2019-05-20/index.html).

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### Author: ![JeanMertz](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/jeanmertz/32/4536_2.png) [@JeanMertz](https://internals.rust-lang.org/u/JeanMertz)
#### Post date: [May 21, 2019, 11:10am UTC](https://internals.rust-lang.org/t/rust-1-35-0-pre-release-testing/10226/2 "2019-05-21T11:10:51Z")

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Nice release. Some great QoL improvements there 👌

I’m a bit confused about the `since = "1.0.0"` part of [https://github.com/rust-lang/rust/pull/58369](https://github.com/rust-lang/rust/pull/58369).

Seems like it was [a deliberate choice](https://github.com/rust-lang/rust/pull/58369#issuecomment-467389978), but I don’t quite understand why.

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### Author: ![Speedy37](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/speedy37/32/2512_2.png) [@Speedy37](https://internals.rust-lang.org/u/Speedy37)
#### Post date: [May 23, 2019, 4:41pm UTC](https://internals.rust-lang.org/t/rust-1-35-0-pre-release-testing/10226/3 "2019-05-23T16:41:37Z")

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Isn’t this the release that contains the new hashbrown HashMap/HashSet implementation ?

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### Author: ![Centril](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/centril/32/3334_2.png) [@Centril](https://internals.rust-lang.org/u/Centril)
#### Post date: [May 23, 2019, 5:35pm UTC](https://internals.rust-lang.org/t/rust-1-35-0-pre-release-testing/10226/4 "2019-05-23T17:35:39Z")

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No, that’s 1.36.0.

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### 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: [August 21, 2019, 5:35pm UTC](https://internals.rust-lang.org/t/rust-1-35-0-pre-release-testing/10226/5 "2019-08-21T17:35:41Z")

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