lld 23 ELF changes

LLVM 23.1 has been released, with 141 commits landing in lld/ELF between the branch point on 2026-01-13 and 23.1.0-rc1 on 2026-07-16, up from 72 in the 22 cycle, according to lld/ELF maintainer notes published in the project's ReleaseNotes.rst. The maintainer used Claude Code to summarize the git log for lld/ELF and then edited the draft, and said much of the increase is performance work, with lld 23 the first release shipping all of it.

LLVM 23.1 has been released. As usual, I maintain lld/ELF and as volunteer work have added some notes to https://github.com/llvm/llvm-project/blob/release/23.x/lld/docs/ReleaseNotes.rst https://github.com/llvm/llvm-project/blob/release/23.x/lld/docs/ReleaseNotes.rst . I've reviewed almost all the patches not authored by me. Like last time, I used Claude Code to summarize git log llvmorg-23-init..origin/release/23.x -- lld/ELF , excluding changes cherry-picked into 22.x git rev-list llvmorg-23-init..llvmorg-22.1.8 -- lld , and then edited the draft. This was a busy cycle: 141 commits landed in lld/ELF between the branch point 2026-01-13 and 23.1.0-rc1 2026-07-16 , compared with 72 in the 22 cycle. Much of the increase is performance work, which I described in Recent lld/ELF performance improvements /blog/2026-04-12-recent-lld-elf-performance-improvements . lld 23 is the first release that ships all of it.