Context information

November 3: rustup 1.29.3 fixes two platform regressions

The Rustup Team released rustup 1.29.3 on November 3, 2026. The patch addresses an illegal-instruction failure on some x86_64 CPUs without SSE4.1 and a locking error on Solaris. The release notice links to the fixes and update guidance for users affected by those platform issues.

External source ↗

Source date: 2026-11-03T00:00:00.000000Z
Provenance: Rustup Team release announcement
Updated: 2026-11-08T22:28:02.027336Z