v0.28.1

Compiler & Build

• Report the final Zig build step duration from the live progress task shown
  during acton build, keeping the final build log consistent with the visible
  CLI progress timer and avoiding a misleading completion line when the final
  build fails. [#2939]
• Read bundled base and std .tydb interface databases as immutable system
  inputs, so installed distributions and --syspath roots can reuse read-only
  interfaces without LMDB lock files while project and dependency caches keep
  normal locking. [#2945]
  • Distribution builds remove generated LMDB lock files from packaged base/std
    caches and normalize data.mdb permissions so release tarballs ship
    world-readable interface databases.
• Box unboxed numeric values before they flow through value use sites,
  fixing assignments, conditionals, isinstance, and and/or expressions
  after primitive unboxing. [#2943]

CLI & Project Workflow

• Use local module names without redundant project prefixes in imports,
  signature inspection, build and test output, diagnostics, snapshot
  directories, and stale-output pruning while keeping project-qualified
  identities for internal caches and dependency layout. [#2937, #2941, #2946,
  #2949]
  • Dependency lib modules can be imported and inspected with the dependency
    package name, for example import dep_a and acton sig dep_a, instead of
    spelling the generated dep_a.lib module.

Packages & Distribution

• Publish signed RPM package repositories at rpm.acton.now and
  rpmtip.acton.now, with signed package and repository metadata for DNF/YUM
  clients and install docs for stable and tip repositories. [#2957]
• Restore http_proxy and https_proxy handling when x86_64 Linux release
  builds fetch package dependencies, fixing a proxy-only-network regression from
  the 0.28 build and linking changes where Acton connected directly even though
  earlier Acton releases used the proxy. [#2956]
  • Dependency download failures report the proxy variable and proxy
    environment Acton used, with a hint for checking proxy configuration.
  • A make test-proxy Docker harness and CI job validate release artifacts on
    amd64 and arm64 hosts behind a proxy-only network.
• Add RPM packaging via make rpms, producing packages from an existing
  dist/ tree and validating them in Fedora CI by building, installing, and
  compile-testing the generated RPMs. [#2948]
• Prune upstream tests, scripts, maintenance files, and docs when extracting
  distribution dependencies, keeping release artifacts focused on runtime
  files. [#2948]
• Declare ca-certificates as a Debian package dependency and install it in the
  container image, so package downloads over TLS work on stripped-down systems
  without relying on another package to provide system CA roots. [#2952]
• Force Acton's macOS Zig SDK fallback for spawned Zig builds even when
  DEVELOPER_DIR is already set, fixing Homebrew source builds with macOS 26
  Command Line Tools. [#2938]
  • The Homebrew formula installs lsp-server-acton explicitly and avoids
    copying dist/bin into the formula prefix.

Documentation

• Index CHANGELOG.md into Ask Acton separately from the guide docs, so release
  notes are available in chat search and changelog updates refresh that source
  independently. [#2944]