[github-actions]

🤖 I have created a release beep boop

0.12.2 (2026-10-19)

Bug Fixes

• atomic: panic when the spinlock allocation fails (#3165) (0f9b9de)
• channels: enforce --arena-limit in channels.open (#3152) (4012399)
• channels: panic when channels.open cannot allocate (#3164) (d9b1e6e)
• channels: panic when channels.open capacity overflows the buffer size (#3163) (b9b19d2)
• cli: gray update verifies the archive's SHA-256 before installing (#3172) (b2208af)
• codegen: append, prepend and insert_at on a new() object's array field allocate in the heap arena (#3149) (4de14a2)
• codegen: copy values stored through a pointer into the heap arena (#3153) (1ffab22)
• codegen: deep-copy tagged enum payloads when the value leaves its scope (#3155) (3f364e6)
• codegen: skip the heap copy when storing back an elided array field copy (33557b3)
• grayc: keep the runtime archive cache in a private per-user directory (#3171) (e72826d)
• io: copy_file gives the copy the source file's permission bits (#3174) (ef65e53)
• io: remove_dir_all unlinks a symlink root instead of deleting its target's contents (#3170) (fe7fe71)
• io: remove_dir_all unlinks symlinks instead of following them (#3161) (d2e76e7)
• os: exec closes inherited file descriptors in the child (#3175) (8ccd393)
• runtime: apply --arena-limit to thread and server connection arenas (#3151) (45cdeb6)
• runtime: enforce --arena-limit in function, block and loop arenas (#3150) (d2587bf)
• server: reject a request whose method or path contains a NUL byte (#3173) (f69d6c0)
• typechecker: record pointer origin for a variable declared without mut (#3176) (20ed9ac)
• typechecker: reject a generic parameter name used as a value (#3154) (751bd02)
• typechecker: size the function-reference signature buffer to its text (#3162) (ebf1ad8)

Performance Improvements

• grayc: build the gcc runtime archive at -O3 (#3159) (a493e83)
• grayc: cache a runtime archive for tcc builds (#3156) (42800ce)
• runtime: use a sign test for tcc overflow-checked add and sub (#3157) (5d4241e)

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[github-actions]

🤖 Created releases:

• grayscale-v0.12.2

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