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Merge pull request #622 from gzm0/release-1.15.0
Announcing Scala.js 1.15.0
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--- | ||
layout: post | ||
title: Announcing Scala.js 1.15.0 | ||
category: news | ||
tags: [releases] | ||
permalink: /news/2023/12/29/announcing-scalajs-1.15.0/ | ||
--- | ||
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We are pleased to announce the release of Scala.js 1.15.0! | ||
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This release mainly brings a change in how the Scala 2 standard library is versioned in anticipation of [SIP 51][SIP-51]. | ||
There is no user visible impact expected from this change at this point. | ||
Transition of the ecosystem will be handled as part of [SIP 51][SIP-51]. | ||
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Read on for more details. | ||
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<!--more--> | ||
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## Getting started | ||
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If you are new to Scala.js, head over to [the tutorial]({{ BASE_PATH }}/tutorial/). | ||
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If you need help with anything related to Scala.js, you may find our community [in `#scala-js` on Discord](https://discord.com/invite/scala) and [on Stack Overflow](https://stackoverflow.com/questions/tagged/scala.js). | ||
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Bug reports can be filed [on GitHub](https://github.com/scala-js/scala-js/issues). | ||
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## Release notes | ||
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If upgrading from Scala.js 0.6.x, make sure to read [the release notes of Scala.js 1.0.0]({{ BASE_PATH }}/news/2020/02/25/announcing-scalajs-1.0.0/) first, as they contain a host of important information, including breaking changes. | ||
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This is a **minor** release: | ||
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* It is backward binary compatible with all earlier versions in the 1.x series: libraries compiled with 1.0.x through 1.13.x can be used with 1.15.0 without change. | ||
* Despite being a minor release, 1.15.0 is forward binary compatible with 1.13.x or later. It is *not* forward binary compatible with 1.12.x. Libraries compiled with 1.15.0 can be used with 1.13.x or later but not with 1.12.x or earlier. | ||
* It is *not* entirely backward source compatible: it is not guaranteed that a codebase will compile *as is* when upgrading from 1.13.x (in particular in the presence of `-Xfatal-warnings`). | ||
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As a reminder, libraries compiled with 0.6.x cannot be used with Scala.js 1.x; they must be republished with 1.x first. | ||
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## Improvements | ||
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* Add `java.io.FilterReader` to the javalib (thanks to @ekrich). | ||
* Reduce memory usage of the linker with more static string allocation. | ||
* Split the scalalib into a separate artifact (for [SIP 51][SIP-51]). | ||
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[SIP-51]: https://docs.scala-lang.org/sips/drop-stdlib-forwards-bin-compat.html |
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