version

bwa-mem3 version prints the release version of the binary and, when mimalloc is compiled in, the mimalloc version. It is a quick way to confirm which build is on PATH and whether the allocator is active.

Synopsis

mimalloc 3.3.0
v<MAJOR.MINOR>-<N>-g<COMMIT>

Common usage

Confirm the installed version and allocator:

./bwa-mem3 version

A typical run prints two lines (the mimalloc line goes to stderr and the version string to stdout, so the order in a merged stream is not guaranteed):

mimalloc 3.3.0
v0.1.0-pre-7-g613a4dc

The first line is the mimalloc version (present only when USE_MIMALLOC=1, the default). The second line is the bwa-mem3 version string, derived from git describe at build time and stored as PACKAGE_VERSION in the binary. When building from a tarball without git history, the fallback value is set via FG_LABS_VERSION_FALLBACK at compile time.

Notes / Gotchas

Note — mimalloc line goes to stderr, version to stdout

The mimalloc line is printed to stderr and the version string to stdout. Scripts that capture the version should redirect stderr appropriately or use bwa-mem3 version 2>/dev/null.

Tip — No mimalloc line means USE_MIMALLOC=0

If only the version string appears and no mimalloc line, the binary was built without the bundled allocator (make USE_MIMALLOC=0). See User Guide — Memory allocator (mimalloc) for when this is appropriate.

See also: User Guide — Memory allocator (mimalloc) · Developer Guide — Release process · Getting Started — Installation · What’s Different — Build & infrastructure