Enhancements

• implement Cats typeclass instances for Ask and Local by @bpholt in https://github.com/typelevel/cats-mtl/pull/465
• Change abstract instance vals to defs by @rossabaker in https://github.com/typelevel/cats-mtl/pull/478

Docs

• Update readme for 1.3.0 release by @benhutchison in https://github.com/typelevel/cats-mtl/pull/470
• Add unidocs to root aggregate by @b-vennes in https://github.com/typelevel/cats-mtl/pull/459
• Be less precise about Scala 3 version by @rossabaker in https://github.com/typelevel/cats-mtl/pull/476

Updates

• Update scala-library to 2.12.18 by @typelevel-steward in https://github.com/typelevel/cats-mtl/pull/499
• Update cats-core, cats-laws, cats-testkit to 2.10.0 by @typelevel-steward in https://github.com/typelevel/cats-mtl/pull/517
• Update scala3-library, ... to 3.3.1 by @typelevel-steward in https://github.com/typelevel/cats-mtl/pull/523
• Update scala-library to 2.13.12 by @typelevel-steward in https://github.com/typelevel/cats-mtl/pull/525
• Update sbt-scalajs, scalajs-compiler, ... to 1.14.0 by @typelevel-steward in https://github.com/typelevel/cats-mtl/pull/532
• Update nscplugin, sbt-scala-native, ... to 0.4.16 by @typelevel-steward in https://github.com/typelevel/cats-mtl/pull/534

New Contributors

• @benhutchison made their first contribution in https://github.com/typelevel/cats-mtl/pull/470
• @b-vennes made their first contribution in https://github.com/typelevel/cats-mtl/pull/459
• @sh0hei made their first contribution in https://github.com/typelevel/cats-mtl/pull/360
• @rossabaker made their first contribution in https://github.com/typelevel/cats-mtl/pull/476
• @bpholt made their first contribution in https://github.com/typelevel/cats-mtl/pull/465

Full Changelog: https://github.com/typelevel/cats-mtl/compare/v1.3.1...v1.4.0