hpx
22 merged PRs to the C++ standard library for parallelism and concurrency. execution policy traits, performance counter thread safety, MSVC and MinGW support, DbgHelp symbol caching, and build fixes for conan and nvcc.
open source
upstream work in other people's codebases, mostly C++ runtimes and linux internals.
criu
merged fixes to linux checkpoint/restore, including skipping the kernel's auto-created tunl0 device during checkpoint.
submitty
merged a fix that keeps signup fields filled in after validation errors.
in review
llvm (clang-repl XDG history), google/artemis (MCP test fixes), daytona (snapshot retry).