Notable

• Add Array.from extension for scala 2.11 and 2.12 by @RustedBones in #658

Also

• copyright 2025 and add Scala CLA by @SethTisue in #675
• Lightbend Inc. dba Akka by @SethTisue in #672
• Scala 3.3.3, 2.13.13, 2.12.19 by @SethTisue in #660
• adjust a test to pass on both 2.13.14 and 15 by @SethTisue in #659
• Update sbt to 1.10.2 by @scala-steward in #661
• Update sbt to 1.10.3 by @scala-steward in #665
• Update sbt, scripted-plugin to 1.10.4 by @scala-steward in #666
• Update sbt, scripted-plugin to 1.10.5 by @scala-steward in #668
• Update sbt, scripted-plugin to 1.10.6 by @scala-steward in #670
• Update sbt, scripted-plugin to 1.10.7 by @scala-steward in #674
• Update sbt-buildinfo to 0.13.0 by @scala-steward in #667
• Update sbt-buildinfo to 0.13.1 by @scala-steward in #669
• Update sbt-scala-module to 3.2.0 by @scala-steward in #664
• Update sbt-scala-module to 3.2.2 by @scala-steward in #673
• Update scalafmt-core to 3.8.2 by @scala-steward in #655
• Update scalafmt-core to 3.8.3 by @scala-steward in #657
• Update scalafmt-core to 3.8.6 by @scala-steward in #679

Full Changelog: v2.12.0...v2.13.0

Notable

• add unfold method by @xuwei-k in #611
• add maxBefore and minAfter by @xuwei-k in #612
• add Random.nextLong(Long) by @xuwei-k in #639
• Scala Native: Upgrade to 0.5.0 and drop Scala 2.11 by @ekrich in #646

Also

• reset version policy, post-2.11.0 by @SethTisue in #605
• use newer GitHub Actions versions by @SethTisue in #606
• tell Scala Steward not to update stuff by @SethTisue in #630
• Use Scaladex badge on ReadMe to show Scala version support by @rtyley in #633
• upgrade Scalafmt (from 1.5.1 to 3.7.4) and reformat sources by @SethTisue in #604
• Update sbt-scala-module to 3.1.0 by @scala-steward in #614
• Update sbt-scala-native-crossproject, ... to 1.3.2 by @scala-steward in #613
• Update sbt-buildinfo to 0.12.0 by @scala-steward in #647
• Update sbt to 1.9.1 by @scala-steward in #608
• Update sbt to 1.9.2 by @scala-steward in #615
• Update sbt to 1.9.3 by @scala-steward in #618
• Update sbt to 1.9.4 by @scala-steward in #622
• Update sbt to 1.9.6 by @scala-steward in #629
• Update sbt to 1.9.7 by @scala-steward in #634
• Update sbt to 1.9.8 by @scala-steward in #638
• Update sbt to 1.9.9 by @scala-steward in #642
• Update scalafmt-core to 3.7.10 by @scala-steward in #617
• Update scalafmt-core to 3.7.11 by @scala-steward in #619
• Update scalafmt-core to 3.7.12 by @scala-steward in #620
• Update scalafmt-core to 3.7.14 by @scala-steward in #625
• Update scalafmt-core to 3.7.15 by @scala-steward in #635
• Update scalafmt-core to 3.7.17 by @scala-steward in #637
• Update scalafmt-core to 3.8.0 by @scala-steward in #641
• Update scalafmt-core to 3.8.1 by @scala-steward in #649

New Contributors

• @rtyley made their first contribution in #633

Full Changelog: v2.11.0...v2.12.0

What's Changed

• Add RegexOps by @jozic in #595
• Add implementation of distinctBy by @alexklibisz in #602

New Contributors

• @jozic made their first contribution in #595
• @alexklibisz made their first contribution in #602

Full Changelog: v2.10.0...v2.11.0

Notable changes

• Make ArraySeq extend IndexedSeqOptimized by @RustedBones in #581
• Improve Using on Scala 2.11 (so a Source can be automatically released) by @kwalcock in #587

Other changes

• Update sbt to 1.8.2 by @scala-steward in #575
• copyright 2023 by @SethTisue in #576
• use ScalaNativeJUnitPlugin by @xuwei-k in #577
• Update scala3-library, ... to 3.2.2 by @scala-steward in #580
• Update sbt-scala-native-crossproject, ... to 1.3.0 by @scala-steward in #588
• Update sbt-scala-native-crossproject, ... to 1.3.1 by @scala-steward in #590
• disable versionCheck for Scala Native by @SethTisue in #592

New Contributors

• @RustedBones made their first contribution in #581
• @kwalcock made their first contribution in #587

Full Changelog: v2.9.0...v2.10.0

Highlights

• Add javaapi collection forwarders for 2.12 and 2.11 by @DieBauer in #551
• Add toIntOption (and Long, Boolean, et al) by @rjolly in #566
• Fix CVE-2022-36944 for LazyList by @NthPortal in #569

Other changes

• scalafix: leverage scalafixEnable & scalafixAll by @bjaglin in #550
• Mention how to prevent unused import warnings by @nightscape in #562
• Update sbt-scalajs, scalajs-compiler, ... to 1.12.0 by @scala-steward in #573, #559
• Update Scala Native to 0.4.9 by @scala-steward in #574, #555

Internal changes

• Update scala-library to 2.13.10 by @scala-steward in #561
• Update scala-library to 2.12.17 by @scala-steward in #560
• Update sbt-scalafix, scalafix-core to 0.10.4 by @scala-steward in #558
• build: increase default heap size by @SethTisue in #564
• Update sbt to 1.8.0 by @scala-steward in #571, #567

New contributors

• @DieBauer made their first contribution in #551
• @nightscape made their first contribution in #562
• @rjolly made their first contribution in #566

Full Changelog: v2.8.1...v2.9.0

What's Changed

• Scalafix rules now use Scalafix 0.10.1 by @bjaglin in #549

New Contributors

• @bjaglin made their first contribution in #549

Full Changelog: v2.8.0...v2.8.1

Changes

• for Scala 3 users, require Scala 3.1+ by @SethTisue in #547
• Add Iterator.nextOption by @ryan-johnson-databricks in #534
• Backport scala.jdk.OptionConverters to 2.11 / 2.12 by @haukeh in #533
• Option.when and Option.unless added by @pedorich-n in #541

Internal changes

• Update sbt-scala-native-crossproject, ... to 1.2.0 by @scala-steward in #527
• Update scala3-library to 3.1.2 by @scala-steward in #530
• Update sbt-scalajs, scalajs-compiler, ... to 1.10.0 by @scala-steward in #528
• Update sbt-scalajs, scalajs-compiler, ... to 1.10.1 by @scala-steward in #536
• Update junit-plugin, junit-runtime, ... to 0.4.5 by @scala-steward in #540
• sbt 1.7.0-RC2 (was 1.6.2) by @SethTisue in #545
• Update scala3-library to 3.1.3 by @scala-steward in #538
• GitHub Actions config: avoid duplicating Scala version numbers by @SethTisue in #546
• bump Scala 2.12 version to 2.12.16 (was .15) by @SethTisue in #544

New Contributors

• @ryan-johnson-databricks made their first contribution in #534
• @haukeh made their first contribution in #533
• @pedorich-n made their first contribution in #541

Full Changelog: v2.7.0...v2.8.0

Main changes

• Add mutable Map.updateWith by @emanb29 in #508
• Add updatedWith to Map by @emanb29 in #509
• Add a Scala 3 native build by @JD557 in #524

Other changes

• Update scala-native to 0.4.2 by @scala-steward in #503
• Update auxlib, javalib, junit-plugin, ... to 0.4.3 by @scala-steward in #516
• Update auxlib, javalib, junit-plugin, ... to 0.4.4 by @scala-steward in #523
• Update sbt-scalajs, scalajs-compiler, ... to 1.8.0 by @scala-steward in #505
• Update sbt-scalajs, scalajs-compiler, ... to 1.9.0 by @scala-steward in #521

Contributors

• @emanb29 made their first contribution in #508
• @JD557 made their first contribution in #524

This release was brought to you by 5 contributors, according to git shortlog -sn --no-merges @ ^v2.6.0. Thank you Scala Steward, Ethan Bell, João Costa, Seth Tisue, kenji yoshida.

Full Changelog: v2.6.0...v2.7.0

• preserve immutable collections in to(Target) conversions by @lrytz in #495

This release was brought to you by 4 contributors, according to git shortlog -sn --no-merges @ ^v2.5.0. Thank you Seth Tisue, Scala Steward, Lukas Rytz, Julien Richard-Foy.

Full Changelog: v2.5.0...v2.6.0

• Remove @nowarn from Scala 2.12 build (since it ships with Scala 2.12.13+) (#460)
• Scalafix 0.9.28 (was 0.9.27) (#457)

This release was brought to you by 4 contributors, according to git shortlog -sn --no-merges @ ^v2.4.4. Thank you Scala Steward, Seth Tisue, Arnout Engelen, Meriam Lachkar.