Landing: fabf7b5b9ac5
Project / Subsystem
gcc / libstdc++
Date
2026-07-20
Author
Tomasz Kamiński
Commit
fabf7b5b9ac518635dca5233661a84b0f97063be
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- libstdc++
- patch_id
- —
- commit_hash
- fabf7b5b9ac518635dca5233661a84b0f97063be
- source_type
- github
- headline
- libstdc++: Introduce GLIBCXX_3.4.37 version for symbols not backported to GCC-16.
- tldr
- New ABI version GLIBCXX_3.4.37 added to libstdc++ for symbols not backported to GCC 16.
- author
- Tomasz Kamiński
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • libstdc++
- • abi
- • backport
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-07-20T00:00:00.000Z
This change introduces the GLIBCXX_3.4.37 ABI version to libstdc++. It adds specific symbols, related to chrono and format_arg, that were not backported to GCC 16. Additionally, it moves basic_string’s _S_allocate_at_least and _M_create_plus symbols to this new version. The libtool version has been bumped to 3.4.36, and related baseline symbol files and testsuite configurations are updated.