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Scala LTS 3.3.5 announcement #1728

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4 changes: 2 additions & 2 deletions _data/scala-releases.yml
Original file line number Diff line number Diff line change
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release_date: January 20, 2025
- category: current_version
title: Current 3.3.x LTS release
version: 3.3.4
release_date: September 27, 2024
version: 3.3.5
release_date: January 29, 2025
- category: current_version
title: Current 2.13.x release
version: 2.13.16
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10 changes: 10 additions & 0 deletions _downloads/2025-01-29-3.3.5.md
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---
title: Scala 3.3.5 LTS
start: 29 January 2025
layout: downloadpage
release_version: 3.3.5
release_date: "January 29, 2025"
permalink: /download/3.3.5.html
license: <a href="https://www.scala-lang.org/license/">Apache License, Version 2.0</a>
api_docs: https://www.scala-lang.org/api/3.3.5/
---
28 changes: 28 additions & 0 deletions _posts/2025-01-29-release-notes-3.3.5.md
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---
category: announcement
permalink: /news/3.3.5/
title: "Scala 3.3.5 LTS is now available!"
---
Scala 3.3.5 LTS is now available!

This patch release backports most of the improvements and bugfixes introduced in the Scala Next series up to the Scala 3.5.2 release.
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3.5.2? not 3.6.x?

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3.5.2, it was the selected as cutoff. The reasoning here is that these changes had enough time to be tested out in a cases that are not covered by our tests or community build. The 3.5.6 would include backports introduced up to 3.6.4 (+ possibly some other changes like Scala 2 stdlib upgrade or JVM support)

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@SethTisue SethTisue Jan 27, 2025

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okay. might be worth mentioning in the notes? I think most readers will notice and wonder

(of course, there's also value in keeping notes short...)

All of the backported changes were proven to not break either binary or source compatibility, by testing over 1500 projects in the [Scala 3 Open Community Build](https://github.com/VirtusLab/community-build3).

# Breaking changes

- Aligned `-Wconf` parsing order with Scala 2 semantics: `-Wconf:x,y` now means `-Wconf:x -Wconf:y`, with y overruling x, rather than the reverse to align with Scala 3.4+ and with user intuition [#21985](https://github.com/scala/scala3/pull/21985)

# Notable changes

- Scala 2 Standard Library upgraded to 2.13.15
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not sure if it's worth adding that 3.3.6 will have 2.13.16? maybe not

- Support for JDK 23
- Added the `-Wall` option that enables all linting warnings

For a full list of changes and contributor credits, please refer to the [release notes](https://github.com/scala/scala3/releases/tag/3.3.5).

## Scala LTS Release Notice

The Scala LTS series introduces a delay before backporting non-critical changes from the latest Scala Next stable releases. This delay helps minimize the risk of regressions that may be uncovered during testing.

The next planned LTS release will include updates introduced until Scala 3.6.4, along with support for JDK 24 and the Scala 2.13.16 standard library.