chore(main): release 4.0.0

[scolladon]

🤖 I have created a release beep boop

4.0.0 (2026-09-10)

⚠ BREAKING CHANGES

• pack: order delta candidates by git's name hash and match its window mechanics (#297)
• fetch-pack: index received packs in two bounded-memory passes (#293)
• pack: select and emit offset deltas from gc, pack-objects and bundle-create (#292)
• tree: compare entry-name bytes on every tree read path (#291)

Features

• fetch-pack: index received packs in two bounded-memory passes (#293) (1c6c5e5)
• pack: order delta candidates by git's name hash and match its window mechanics (#297) (1f84254)
• pack: select and emit offset deltas from gc, pack-objects and bundle-create (#292) (5d2e435)
• tree: compare entry-name bytes on every tree read path (#291) (5ac0cf0)

Bug Fixes

• adapters: handle broken-pipe errors when writing command stdin (#288) (f83c342)
• adapters: refuse occupied names on every write surface and enforce POSIX rename kinds on Windows (#296) (7af43d5)
• bench: keep shared fixtures pristine and except workers-types from check:deps (#294) (18dff9c)
• publish the benchmark snapshot again and receive already-present packs as git does (#295) (dedd61b)
• reflog: read reflogs leniently and rewrite them byte-faithfully, matching git (#290) (aa4d273)

Performance

• remediate the 2026-08 performance review — reads, walks, checkout, caches, concurrency, gc (#285) (cc80014)

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commit: 9e737ba

[scolladon]

🤖 Created releases:

• v4.0.0

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