release: 0.7.0

[iainmcgin]

Summary

Prepares the 0.7.0 release: lockstep version bumps for five crates, changelog restructuring and finalization, a documentation accuracy pass across README / guide / rustdoc, and one small behavior fix surfaced by the pre-release audit.

Release mechanics

• All five crates bump to 0.7.0: connectrpc, connectrpc-codegen, connectrpc-build, plus connectrpc-health (Add new connectrpc-health crate #128) and connectrpc-reflection (Add connectrpc-reflection crate (gRPC server reflection v1 + v1alpha) #157), which both join the lockstep scheme with this as their first published version. Inter-crate version requirements move to 0.7.
• publish-crates.yml gains publish steps for connectrpc-health and connectrpc-reflection — the workflow previously published only three crates, so a tag push would have silently skipped both new crates.
• Both new crates gain docs.rs metadata (all-features + --cfg docsrs) and feature badges on their client-gated re-exports, matching the connectrpc pattern.

Changelog

The [Unreleased] section accumulated two stacked fragments (the #143 conversion plus the #159/#160 entries appended above it). Restructured into one coherent [0.7.0] - 2026-06-10 entry:

• Single intro and Breaking section covering both breaking fronts: the server-side request rework (ServiceRequest/StreamMessage on buffa 0.7.0) and the client streaming terminal-error contract, with a before/after handler-signature snippet and PR references on the streaming entries.
• Previously missing entries added: connectrpc-health (Add new connectrpc-health crate #128) and the inter-message timer fix (deadline: don't arm inter-message timer before first item is yielded #127, including the corrected first-poll arming semantics).
• The client: streaming message() returns terminal errors as Err #159 gRPC entry now cross-references client: surface truncated Connect streaming responses as an error #140 instead of implying the Connect unavailable behavior predates this release.

Documentation accuracy pass

• Guide: new Server reflection section (dependency snippet, both descriptor sources, schema-exposure callout, demo pointers), fifth crate-table row, streaming-client section now states the client: streaming message() returns terminal errors as Err #159 Err-on-terminal-error contract, bidi snippet fixed to unwrap the Option before .reborrow(), inter-message timeout wording updated for deadline: don't arm inter-message timer before first item is yielded #127, ctx.deadline field access replaced with the real accessors, ConnectError sketch corrected, stale 0.5/0.6 version snippets bumped.
• Rustdoc: connectrpc-reflection's build.rs quick-start used the prost-style compile(&files, &includes) signature that doesn't exist — fixed to the real Config API; with_inter_message_timeout now documents when the timer arms; connectrpc crate-doc module index and Protocol Support section refreshed; duplicated ServerStream summary line removed.

Behavior fix

The default CompressionProvider::decompress_with_limit implementation mapped read failures to internal, while #144 moved the built-in providers to invalid_argument — a custom provider relying on the default would silently keep the old 5xx behavior the changelog says was fixed. The default now maps read failures to invalid_argument, with a documented convention and a regression test.

Verification

• task lint (clippy all targets -D warnings + nightly fmt) clean
• task test passes
• task doc (broken intra-doc links denied) clean

After merge

Tag v0.7.0 on the merge commit to trigger crates.io publish (now five crates) and the binary release. Post-release follow-up: regenerate examples/bazel/Cargo.lock against the published 0.7.0 crates (its pins cannot resolve before publish). Optional: pick up buffa 0.7.1 in lockfiles when it ships — the 0.7 floor needs no change.

[github-actions]

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[iainmcgin]

waiting for the streaming err handling fix and reflection crate before release