scalapb/zio-grpc v0.6.4 on GitHub

Respect gRPC readiness when sending client-streaming and bidirectional requests; stop the request stream when the server closes the call, including early responses (#729).

Upgrade ZIO from 2.0.22 to 2.1.26 (#671, #720).
Update gRPC to 1.84.2 and ScalaPB to 0.11.21 (#742, #729).
Update Scala to 2.12.21 / 2.13.18 / 3.3.8 and Scala.js to 1.22.0; keep Scala 3 on the 3.3 LTS line (#715, #713, #721, #723, #743).
Modernize build and browser tooling, pin the Nix development environment, and validate examples against the local checkout in CI (#733).
Migrate publishing to Central Portal and gate releases on CI for the exact commit. Deploy documentation separately through GitHub Pages Actions (#733, #751).

Migrate the documentation website to Docusaurus 3 and refresh its dependencies (#733).
Expand this changelog back to the library's inception, including prereleases and release comparison links (#674).