v0.16.0

This is the first release with support for type class derivation on Scala 3! 🥳

It adds derivation for the type classes FunctorK, ContravariantK, InvariantK, SemigroupalK and ApplyK. One caveat compared to Scala 2 is that algebras with type members are not supported. The derivation macros are experimental meaning that call-sites need to be annotated with @experimental. Alternatively, users can enable the -experimental compiler option starting with Scala 3.4. The reasons for both limitations are rooted in the underlying macro APIs.

What's Changed

• Update scala3-library, ... to 3.3.0 by @pomadchin in #429
• check binary compatibility with v0.14.0 wherever possible by @bpholt in #430
• Added examples project by @vasiliybondarenko in #418
• Fix microsite links by @joroKr21 in #437
• Support Semigroupal for more complex types by @joroKr21 in #438
• Quality of life improvements in DeriveMacros by @joroKr21 in #439
• Fix FunctorK when F occurs only in contravariant position by @joroKr21 in #440
• Add FunctorK instance for FS2 Stream by @m50d in #443
• Derive SemigroupK by @joroKr21 in #441
• Derive MonoidK, fix SemigroupK by @joroKr21 in #445
• Update Ruby and Jekyll by @joroKr21 in #507
• Exclude metals.sbt from scalafmt by @joroKr21 in #511
• Scala3 FunctorK macros by @pomadchin in #442
• Scala3 SemigroupalK and InvariantK macros by @pomadchin in #513
• Scala3 ContravariantK macros by @pomadchin in #518
• Scala3 ApplyK macros and SemigroupalK derivation improvement by @pomadchin in #516
• Handle repeated and by-name parameters by @joroKr21 in #519
• Hacky solution of the Tuple2K problem by @joroKr21 in #520
• [Scala 3] Use Semigroup to combine results in SemigroupalK derivation by @joroKr21 in #521
• Consolidate Derive API between Scala 2 and Scala 3 by @joroKr21 in #522

Dependency Updates

• Update sbt to 1.9.0 by @typelevel-steward in #431
• Update nscplugin, sbt-scala-native, ... to 0.4.13 by @typelevel-steward in #432
• Update sbt-typelevel, ... to 0.4.22 by @typelevel-steward in #433
• Update nscplugin, sbt-scala-native, ... to 0.4.14 by @typelevel-steward in #434
• Update scala-compiler, scala-library, ... to 2.12.18 by @typelevel-steward in #435
• Update scala-compiler, scala-library, ... to 2.13.11 by @typelevel-steward in #436
• Update scalafmt-core to 3.7.4 by @typelevel-steward in #426
• Update sbt-scalajs, scalajs-compiler, ... to 1.13.2 by @typelevel-steward in #444
• Update sbt to 1.9.1 by @typelevel-steward in #446
• Update scalafmt-core to 3.7.5 by @typelevel-steward in #447
• Update scalafmt-core to 3.7.6 by @typelevel-steward in #448
• Update scalafmt-core to 3.7.7 by @typelevel-steward in #449
• Update sbt-scala-native-crossproject to 1.3.2 by @typelevel-steward in #450
• Update sbt to 1.9.2 by @typelevel-steward in #451
• Update scalafmt-core to 3.7.8 by @typelevel-steward in #452
• Update scalafmt-core to 3.7.9 by @typelevel-steward in #453
• Update scalafmt-core to 3.7.10 by @typelevel-steward in #454
• Update sbt to 1.9.3 by @typelevel-steward in #455
• Update scalafmt-core to 3.7.11 by @typelevel-steward in #456
• Update fs2-core to 3.8.0 by @typelevel-steward in #457
• Update scalafmt-core to 3.7.12 by @typelevel-steward in #458
• Update cats-core, cats-free, cats-laws, ... to 2.10.0 by @typelevel-steward in #459
• Update sbt to 1.9.4 by @typelevel-steward in #461
• Update scalafmt-core to 3.7.13 by @typelevel-steward in #462
• Update fs2-core to 3.9.0 by @typelevel-steward in #463
• Update fs2-core to 3.9.1 by @typelevel-steward in #464
• Update circe-core to 0.14.6 by @typelevel-steward in #465
• Update scalafmt-core to 3.7.14 by @typelevel-steward in #466
• Update nscplugin, sbt-scala-native, ... to 0.4.15 by @typelevel-steward in #467
• Update scala3-library, ... to 3.3.1 by @typelevel-steward in #468
• Update sbt-typelevel, ... to 0.5.2 by @typelevel-steward in #471
• Update scala-compiler, scala-library, ... to 2.13.12 by @typelevel-steward in #470
• Update fs2-core to 3.9.2 by @typelevel-steward in #472
• Update sbt to 1.9.5 by @typelevel-steward in #473
• Update sbt to 1.9.6 by @typelevel-steward in #474
• Update sbt-typelevel, ... to 0.5.3 by @typelevel-steward in #475
• Update sbt-scalajs, scalajs-compiler, ... to 1.14.0 by @typelevel-steward in #476
• Update sbt-typelevel, ... to 0.5.4 by @typelevel-steward in #477
• Update sbt-mdoc to 2.3.8 by @typelevel-steward in #478
• Update nscplugin, sbt-scala-native, ... to 0.4.16 by @typelevel-steward in #479
• Update sbt-typelevel, ... to 0.6.0 by @typelevel-steward in #480
• Update sbt-mdoc to 2.4.0 by @typelevel-steward in #481
• Update sbt to 1.9.7 by @typelevel-steward in #482
• Update scalafmt-core to 3.7.15 by @typelevel-steward in #483
• Update sbt-typelevel, ... to 0.6.1 by @typelevel-steward in #484
• Update fs2-core to 3.9.3 by @typelevel-steward in #485
• Update sbt-mdoc to 2.5.0 by @typelevel-steward in #486
• Update sbt-microsites to 1.4.4 by @typelevel-steward in #487
• Update sbt-mdoc to 2.5.1 by @typelevel-steward in #488
• Update sbt-typelevel, ... to 0.6.2 by @typelevel-steward in #490
• Update scalafmt-core to 3.7.17 by @typelevel-steward in #491
• Update sbt-typelevel, ... to 0.6.3 by @typelevel-steward in #492
• Update sbt-typelevel, ... to 0.6.4 by @typelevel-steward in #494
• Update sbt to 1.9.8 by @typelevel-steward in #493
• Update sbt-mdoc to 2.5.2 by @typelevel-steward in #495
• Update sbt-typelevel, ... to 0.6.5 by @typelevel-steward in #496
• Update sbt-scalajs, scalajs-compiler, ... to 1.15.0 by @typelevel-steward in #497
• Update nscplugin, sbt-scala-native, ... to 0.4.17 by @typelevel-steward in #498
• Update fs2-core to 3.9.4 by @typelevel-steward in #499
• Update sbt-typelevel, ... to 0.6.6 by @typelevel-steward in #500
• Update scalafmt-core to 3.8.0 by @typelevel-steward in #501
• Update sbt to 1.9.9 by @typelevel-steward in #502
• Update kind-projector to 0.13.3 by @typelevel-steward in #503
• Update sbt-typelevel, ... to 0.6.7 by @typelevel-steward in #504
• Update scala-compiler, scala-library, ... to 2.12.19 by @typelevel-steward in #505
• Update scala-compiler, scala-library, ... to 2.13.13 by @typelevel-steward in #506
• Update scala3-library, ... to 3.3.3 by @typelevel-steward in #508
• Update fs2-core to 3.10.0 by @typelevel-steward in #509
• Update fs2-core to 3.10.1 by @typelevel-steward in #512
• Update fs2-core to 3.10.2 by @typelevel-steward in #514
• Update scalafmt-core to 3.8.1 by @typelevel-steward in #515
• Update sbt-scalajs, scalajs-compiler, ... to 1.16.0 by @typelevel-steward in #517

New Contributors

• @vasiliybondarenko made their first contribution in #418
• @m50d made their first contribution in #443

Full Changelog: v0.15.0...v0.16.0