v3.9.0

This is the ninth minor release in the 3.x series (and the nine thousand two hundred and ninety first release as measured by unique commits). This release features improvements to the Chunk class (including the addition of the new, generic Chunk.from method to create chunks from collections and subsequent deprecation of various concrete constructors like seq and vector). The StreamDecoder type also has some important bug fixes.

Improvements

• Chunk improvements by @BalmungSan in #3274
• Optimize fs2.text.{char2string,string2char} by @armanbilge in #3278
• Fix rechunkRandomly with large ending chunk by @domaspoliakas in #3277
• Handle AggregateErrors on Node.js by @armanbilge in #3269
• Fix various issues with PCAP decoding by @mpilquist in #3283
• Chunk - Optimise Flatten implementation. by @diesalbla in #3190

Documentation & Build

• fix comment about followLinks by @nikiforo in #3273
• Fix compile, run I/O tests on macOS via Cirrus CI by @armanbilge in #3286
• Fix compilation error due to bad merge and change in Chunk constructors by @mpilquist in #3288
• Fix deprecations and tweak Cirrus CI by @armanbilge in #3289

Updates

• Update scalafmt-core to 3.7.12 by @typelevel-steward in #3270
• Update cats-core, cats-laws to 2.10.0 by @typelevel-steward in #3275
• Update epollcat to 0.1.6 by @typelevel-steward in #3284
• Update scalafmt-core to 3.7.13 by @typelevel-steward in #3285
• Update sbt to 1.9.4 by @typelevel-steward in #3282
• Update sbt-typelevel, sbt-typelevel-site to 0.5.0 by @typelevel-steward in #3281
• Update to sbt-typelevel 0.5.0 by @armanbilge in #3272
• flake.lock: Update by @typelevel-steward in #3268
• flake.lock: Update by @typelevel-steward in #3287

Full Changelog: v3.8.0...v3.9.0

v3.8.0

Improvements

• Optimize the Java Flow interop by @BalmungSan in #3130
• Cross-compile interop.flow by @BalmungSan in #3160
• Add String to Char and Char to String conversion by @susuro in #3218
• Refactor merge implementation by @zainab-ali in #3242
• Stream - Refactor Parjoins by @diesalbla in #3248
• Stream - BroadcastThrough - refactor code by @diesalbla in #3254
• Add variant of Stream.fromQueueUnterminated for Monad. by @kamilkloch in #3264
• Add Stream.filterNot by @kiendang in #3265

Bugfixes

• Fixing interruption behaviour by @Angel-O in #3183
• Suppress errors in socket read/write canceler by @armanbilge in #3238
• Fix TLSSocket addresses on JS by @armanbilge in #3256
• Fix TLS session access on JS by @armanbilge in #3257

Documentation

• Add fs2-aes to the ecosystem. by @jwojnowski in #3222
• Update Jack Henry by @ChristopherDavenport in #3239
• Fix skunk doc link in cover page by @ShapelessCat in #3241

Updates

• Update sbt-typelevel, sbt-typelevel-site to 0.4.21 by @typelevel-steward in #3221
• Update testng-7-5 to 3.2.16.0 by @typelevel-steward in #3223
• flake.lock: Update by @typelevel-steward in #3214
• Update nscplugin, sbt-scala-native, ... to 0.4.14 by @typelevel-steward in #3233
• Update scalafmt-core to 3.7.4 by @typelevel-steward in #3226
• Update sbt-jmh to 0.4.5 by @typelevel-steward in #3230
• Update jnr-unixsocket to 0.38.20 by @typelevel-steward in #3235
• Update sbt to 1.9.0 by @typelevel-steward in #3228
• Update scala3-library, ... to 3.3.0 by @typelevel-steward in #3227
• Update epollcat to 0.1.5 by @typelevel-steward in #3234
• Update scala-library to 2.13.11 by @typelevel-steward in #3237
• Update scala-library to 2.12.18 by @typelevel-steward in #3236
• Update scalafmt-core to 3.7.8 by @typelevel-steward in #3255
• Update cats-effect, cats-effect-laws, ... to 3.5.1 by @typelevel-steward in #3244
• Update sbt to 1.9.2 by @typelevel-steward in #3253
• Update sbt-scalajs, scalajs-compiler, ... to 1.13.2 by @typelevel-steward in #3243
• Update sbt-scala-native-crossproject to 1.3.2 by @typelevel-steward in #3252
• Update jimfs to 1.3.0 by @typelevel-steward in #3250
• Update scalafmt-core to 3.7.10 by @typelevel-steward in #3259
• Update sbt-typelevel, sbt-typelevel-site to 0.4.22 by @typelevel-steward in #3232
• flake.lock: Update by @typelevel-steward in #3225
• Update sbt to 1.9.3 by @typelevel-steward in #3262
• Update scalafmt-core to 3.7.11 by @typelevel-steward in #3263

New Contributors

• @jwojnowski made their first contribution in #3222
• @ShapelessCat made their first contribution in #3241
• @kiendang made their first contribution in #3265

Full Changelog: v3.7.0...v3.7.1

v3.7.0

⚠️ Important note

• This release updates cats-effect to 3.5.0, which includes an important change to the behavior of the Async#async and IO.async methods. Please check the cats-effect release notes for v3.5.0 for more details, in case the behavior change impacts your codebase.

New Features

• Added writeUtf8 and writeUtf8Lines by @TonioGela in #3167
• Introduce Process API by @armanbilge in #3149
• Implicit instances for IO only by @armanbilge in #3179
• Offer implicits for any LiftIO by @armanbilge in #3192

Improvements

• Tweak Scope#close for a bit better performance by @danicheg in #3137
• Microptimize Signal#getAndDiscreteUpdates by @armanbilge in #3144
• Optimize Chunk#to{Byte,Char}Buffer, add note about mutability by @armanbilge in #3147
• Fix async_ usages for new uncancelable semantic by @armanbilge in #3063
• Refactor JVM unixsockets by @armanbilge in #3165
• Stream - reimplement without Pull.loop by @diesalbla in #3154
• Relax status check for google TLS tests by @armanbilge in #3177
• Chunk - Add optimised traverse_ for StackSafeMonad. by @diesalbla in #3191
• Slower sleep+timeout for timed doctest by @armanbilge in #3188
• Stream - microptimise EvalTap by @diesalbla in #3196
• Specialize Chunk#toArraySlice by @armanbilge in #3198
• Replace recursive Pull with foreach in writeWritable by @armanbilge in #3208

Bugfixes

• Fix interleaveOrdered effectful cases [Fixes #3156] by @ivan-klass in #3161
• Fix NPE for socket writes on Node.js 19 by @armanbilge in #3178
• More null checks in JS streams by @armanbilge in #3184
• fixing assertion in parEval test by @Angel-O in #3185
• Fix unintended unchunking by adding override map by @yyy1000 in #3189
• Fix Signal#ap bug in getAndDiscreteUpdates by @armanbilge in #3206

Build / Site / Docs

• Tweak some scaladocs by @danicheg in #3139
• Don't test TLSv1, v1.1 on Node.js, fix JVM TLS error test by @armanbilge in #3145
• Added Lepus to ecosystem by @hnaderi in #3163
• Add macOS to CI matrix by @armanbilge in #3180
• Increase timeouts by @armanbilge in #3181
• Use Discord typelevel channel instead of gitter in Guide page by @lenguyenthanh in #3209
• comment typo fix by @nikita12100 in #3216

Updates

• Update epollcat to 0.1.4 by @typelevel-steward in #3146
• Update scalafmt-core to 3.7.2 by @typelevel-steward in #3150
• Update scodec-bits to 1.1.37 by @typelevel-steward in #3152
• Update sbt-scala-native-config-brew-github-actions to 0.1.3 by @typelevel-steward in #3158
• Update to ip4s 3.3.0 by @mpilquist in #3172
• Update CONTRIBUTING.md for Native build by @mpilquist in #3176
• Update sbt-scalajs, scalajs-compiler, ... to 1.13.1 by @typelevel-steward in #3203
• Update sbt-scala-native-crossproject to 1.3.1 by @typelevel-steward in #3211
• flake.lock: Update by @typelevel-steward in #3204
• Update sbt-typelevel, sbt-typelevel-site to 0.4.20 by @typelevel-steward in #3213
• Update cats-effect, cats-effect-laws, ... to 3.5.0 by @typelevel-steward in #3219
• Update sbt to 1.8.3 by @typelevel-steward in #3220

New Contributors

• @hnaderi made their first contribution in #3163
• @TonioGela made their first contribution in #3167
• @Angel-O made their first contribution in #3185
• @yyy1000 made their first contribution in #3189
• @lenguyenthanh made their first contribution in #3209
• @nikita12100 made their first contribution in #3216

Full Changelog: v3.6.1...v3.7.0

v3.7.0-RC5

Improvements

• Stream - microptimise EvalTap by @diesalbla in #3196
• Fix unintended unchunking by adding override map by @yyy1000 in #3189
• Specialize Chunk#toArraySlice by @armanbilge in #3198
• Replace recursive Pull with foreach in writeWritable by @armanbilge in #3208

Build / Site / Docs

• Use Discord typelevel channel instead of gitter in Guide page by @lenguyenthanh in #3209
• comment typo fix by @nikita12100 in #3216

Updates

• Update sbt-scala-native-crossproject to 1.3.0 by @typelevel-steward in #3201
• flake.lock: Update by @typelevel-steward in #3193
• Update sbt-scalajs, scalajs-compiler, ... to 1.13.1 by @typelevel-steward in #3203
• Update sbt-typelevel, sbt-typelevel-site to 0.4.20 by @typelevel-steward in #3213
• Update cats-effect, cats-effect-laws, ... to 3.5.0-RC5 by @typelevel-steward in #3217
• Update sbt-scala-native-crossproject to 1.3.1 by @typelevel-steward in #3211
• Update cats-effect, cats-effect-laws, ... to 3.5.0-RC4 by @typelevel-steward in #3212
• flake.lock: Update by @typelevel-steward in #3204

New Contributors

• @yyy1000 made their first contribution in #3189
• @lenguyenthanh made their first contribution in #3209
• @nikita12100 made their first contribution in #3216

Full Changelog: v3.7.0-RC4...v3.7.0-RC5

v3.7.0-RC4

What's Changed

• Offer implicits for any LiftIO by @armanbilge in #3192
• Chunk - Add optimised traverse_ for StackSafeMonad. by @diesalbla in #3191
• Slower sleep+timeout for timed doctest by @armanbilge in #3188

Full Changelog: v3.7.0-RC3...v3.7.0-RC4

v3.7.0-RC3

New Features

• Introduce Process API by @armanbilge in #3149
• Added writeUtf8 and writeUtf8Lines by @TonioGela in #3167
• Implicit instances for IO only by @armanbilge in #3179

Bugfixes

• Fix interleaveOrdered effectful cases [Fixes #3156] by @ivan-klass in #3161
• Fix NPE for socket writes on Node.js 19 by @armanbilge in #3178

Build / Docs / Refactoring

• Added Lepus to ecosystem by @hnaderi in #3163
• Refactor JVM unixsockets by @armanbilge in #3165
• Stream - reimplement without Pull.loop by @diesalbla in #3154
• Relax status check for google TLS tests by @armanbilge in #3177
• Update CONTRIBUTING.md for Native build by @mpilquist in #3176
• Add macOS to CI matrix by @armanbilge in #3180
• Increase timeouts by @armanbilge in #3181
• More null checks in JS streams by @armanbilge in #3184
• fixing assertion in parEval test by @Angel-O in #3185

Updates

• Update scodec-bits to 1.1.37 by @typelevel-steward in #3152
• flake.lock: Update by @typelevel-steward in #3155
• Update sbt-typelevel, sbt-typelevel-site to 0.4.19 by @typelevel-steward in #3159
• Update sbt-scala-native-config-brew-github-actions to 0.1.3 by @typelevel-steward in #3158
• flake.lock: Update by @typelevel-steward in #3164
• flake.lock: Update by @typelevel-steward in #3168
• Update to ip4s 3.3.0 by @mpilquist in #3172

New Contributors

• @hnaderi made their first contribution in #3163
• @TonioGela made their first contribution in #3167
• @Angel-O made their first contribution in #3185

Full Changelog: v3.7.0-RC2...v3.7.0-RC3

v3.7.0-RC2

This is the second release candidate of FS2 v3.7.0. It is built against Cats Effect v3.5.0-RC3.

Full Changelog: v3.7.0-RC1...v3.7.0-RC2

v3.7.0-RC1

This is the first release candidate of FS2 v3.7.0. It is built against Cats Effect v3.5.0-RC2 and includes the related changes and fixes from #3142.

Full Changelog: v3.6.1...v3.7.0-RC1

v3.6.1

Bugfixes

• Fix ByteBuffer linking in Chunk#toByteVector by @armanbilge in #3136

Docs

• Highlight Scala 3.2 usage in docs by @danicheg in #3134

Build

• Fix build by @danicheg in #3135

Full Changelog: v3.6.0...v3.6.1

3.6.0

Improvements

• Add .interleaveOrdered to combine sorted streams (i.e. "merge-sort") by @ivan-klass in #3110
• Add limit combinator to Stream by @sgjbryan in #3113
• Add Signal#changes by @armanbilge in #3126
• Add interop with Java Flow types by @BalmungSan in #3102
• Add Signal#getAndDiscreteUpdates by @armanbilge in #3125

Bugfixes

• Correctly handle TLS empty writes in S2nConnection by @armanbilge in #3115
• Mask getBasicFileAttributes errors in Files[F].walk by @fthomas in #3120
• Fix hold1 by @armanbilge in #3112
• Use UndefOr for Node.js file Flags not supported on windows by @armanbilge in #3127

Build

• Mark flaky tests by @mpilquist in #3132

Updates

• Update scalafmt-core to 3.7.1 by @typelevel-steward in #3114
• Update nscplugin, sbt-scala-native, ... to 0.4.10 by @typelevel-steward in #3116
• Update sbt-mdoc to 2.3.7 by @typelevel-steward in #3117
• Update cats-effect, cats-effect-laws, ... to 3.4.6 by @typelevel-steward in #3122
• Update sbt-jmh to 0.4.4 by @typelevel-steward in #3121
• Update scala3-library, ... to 3.2.2 by @typelevel-steward in #3119
• Update sbt-scalajs, scalajs-compiler, ... to 1.13.0 by @typelevel-steward in #3129
• Update scodec-bits to 1.1.35 by @typelevel-steward in #3128
• Update to scodec-core 2.2.1 by @mpilquist in #3131

New Contributors

• @ivan-klass made their first contribution in #3110
• @sgjbryan made their first contribution in #3113

Full Changelog: v3.5.0...v3.6.0