v2.21.1

Released: 2026-09-26

Bug Fixes

fix(zfb): drop vestigial relative rerun-if-changed triggers; gate slot triggers on non-override — no more build-script rerun and relink of zfb on every cargo invocation (f7a94911)
fix(zfb-css): stamp embedded Tailwind SHA-256 at build time, skip per-start hash — zfb dev / zfb build no longer hash the 76 MB embedded Tailwind binary on every start (1a88c9e0)
fix(zfb-build): keep manifest-declared dirs when staging workspace packages — a compiled-JS-only workspace sibling whose exports point into dist/ now resolves from a nested host (99816b8f)
fix(dev): watch SSR module deps outside the watch roots and reload SSR on their change — zfb dev picks up edits to workspace-package files SSR imports without a restart (5e085540)
fix(dev,zfb-build): review fixes for the workspace-package staging epic — a degraded empty metafile no longer clears the SSR dependency watch set (b2858cd4)

refactor(zfb,zfb-css): review fixes for the boot-cost epic — one shared ZFB_TAILWIND_BIN override check (empty value = unset) (f37b62ce)