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+**February 22, 2022**
+- Added the Oniguruma regular expression library as an (optional, but enabled by default) dependency ([#81]).
+ Oniguruma supports more regular expression syntax types than the POSIX regex API, and often performs better.
+ To build `bfs` without this new dependency, do `make WITH_ONIGURUMA=` to disable it.
+ Thanks @data-man!
+- Added support for the `ed`, `emacs`, `grep`, and `sed` regular expression types ([#21])
+- Before executing a process with `-exec[dir]`/`-ok[dir]`, `bfs` now ensures all output streams are flushed.
+ Previously, I/O from subprocesses could be interleaved unpredictably with buffered I/O from `bfs` itself.