v0.22.0-M1

This is a new series, forked from main before Cats-Effect 3 support was merged. It is binary incompatible with 0.21, but contains several changes that will be necessary for Scala 3 (Dotty) support. It builds on all the changes from v1.0.0-M1 through v1.0.0-M10, which are not echoed here.

The headline change is that all parboiled2 parsers have been replaced with cats-parse.

Should I switch?

• Users who had been tracking the 1.0 series, but are not prepared for Cats Effect 3, should switch to this series.
• Users who wish to remain on the bleeding edge, including Cats Effect 3, should continue track the 1.0 series.
• Users who need a stable release should remain on the 0.21 series for now.

http4s-core

Breaking changes

• #3855: All parboiled2 parsers are replaced by cats-parse. parboiled2 was not part of the public API, nor are our cats-parse parsers. Users may observe a difference in the error messages and subtle semantic changes. We've attempted to minimize them, but this is a significant underlying change. See also: #3897, #3901, #3954, #3958, #3995, #4023, #4001, #4013, #4042, #3982, #4071, #4017, #4132, #4154, #4200, #4202, #4206, #4201, #4208, #4235, #4147, #4238 #4238
• #4070: No longer publish a scala.annotations.nowarn annotation in the 2.12 build. This is provided in the standard library in 2.12.13, and isn't necessary at runtime in any version.
• #4138: Replace boolean with Weakness sum type in EntityTag model
• #4148: Lift ETag.EntityTag out of header and into the org.http4s package
• #4164: Removal of several deprecated interfaces. Most were non-public binary compatibility shims, or explicit cats instances that had been superseded by new implicits. Some exceptions:
• #4145: Port macros in org.http4s.syntax.literals to Scala 3. Deprecated macros that were on various companion objects will not be in the Scala 3 releases.

Bugfixes

• #4017: Render a final - in a byte ranges without an end value

http4s-laws

Breaking changes

• #4144: Add LawsAdapter to create PropF for effectful properties. Restate various Entity codec laws in terms of it.
• #4164: Removed arbitrary instances for CIString. These are provided by case-insensitive.

http4s-server

Breaking changes

• #4164: Removed deprecated SSLConfig, KeyStoreBits, SSLContextBits, and SSLBits.

http4s-testing

Breaking changes

• #4164: No longer a publicly published package. All public API was previously deprecated.

Dependency upgrades

• async-http-client-2.12.2
• cats-parse-0.3.0
• circe-0.14.0-M3
• jackson-databind-2.12.1
• jawn-1.0.3
• log4cats-1.2.0-RC1 (now under org.typelevel)
• log4s-1.0.0-M4
• okio-2.10.0
• vault-2.1.0-M14 (now under org.typelevel)