v2.16.0

Released: 2026-09-08

Bug Fixes

Retry the esbuild version-gate spawn on ETXTBSY (1d66118d). ensure_binary_verified exec'd the esbuild binary with a bare .output(). That gate is the first exec of a binary a packaged zfb has only just written into a tempdir, so it was the spawn most exposed to the fork-to-exec race already fixed at the crate's three other esbuild call sites; losing it failed the build with Text file busy (os error 26). It now routes through zfb-build's existing retry loop, so a build that previously died on that race completes.