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v0.81.56

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@github-actions github-actions released this 10 Jul 01:59
v0.81.56
7b42fcf

Fixed

  • The no-AVX2 build now really is AVX2-free... the 0.81.54/55 "noavx2" downloads were still compiled with AVX2/FMA/BMI2 (the engine build system silently re-enables them unless each one is turned off explicitly), so on pre-AVX2 Xeons they crashed with the same illegal-instruction error (code 4) they were meant to fix. The legacy variant now pins an SSE4.2 baseline for all three engines (official, turbo and image).

Improved

  • The server log identifies the running build... the startup banner now says "no-AVX2 build" on the legacy variant, and an engine killed by an illegal instruction is diagnosed as a CPU-instruction mismatch pointing to the right download, instead of a bare "exited with code 4".

Full Changelog: v0.81.55...v0.81.56

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