Release 6.21.0

6.21.0 (2026-06-30)

Features

• build hooks (preBuild, postBuild, per-file transform) (#273) (3667383), closes package.json#pkg
• bump fetch 3.6.3 with node 22.22.3, 24.15.0 and 26.2.0 (#277) (546bbf0)
• bump fetch 3.6.4 with nodejs 22.23.1, 24.18.0, 26.4.0 (#288) (3520d26)

Bug Fixes

• detector: pick up six more silent-drop shapes (re-exports, new URL, multi-arg path.join, path.resolve(__dirname,…), createRequire aliases, import.meta.resolve) (#272) (ea66111), closes #269
• sea: set process.pkg in worker threads (#270) (376e2a4)

Test added

• fetch-all: track supported node majors, drop node20 (#286) (1b0002f)
• split unit tests into node:test suite, add c8 coverage (#271) (26f10a3), closes #267 #267

Chores

• add worktrees to gitignore (d585e27)
• deps: bump esbuild to >=0.28.1 to fix security vuln (#282) (#284) (68f41d5)