To summarize, the following changes have been made over the last couple
of months:

• (Feature) With bsdgrep -r, the working directory is implied if no directory is specified
• (Feature) bsdgrep will now behave as bsdgrep -r does when it's named rgrep
• (Feature) bsdgrep now understands -z/--null-data to use \0 as EOL
• (Feature) GNU regex compatibility is now indicated with a "GNU compatible" in the version string
• (Fix) --mmap no longer hangs when coming across an EOF without an accompanying EOL
• (Fix) -o/--color matching generally improved, now produces earliest/longest matches
• (Fix) Context output now more closely aligns with GNU grep
• (Fix) Zero-length matches no longer exhibit broken behavior
• (Fix) Every output line now honors -b/-H/-n flags
• Tests have been added for previous regressions as well as other untested behaviors
• Refactoring for further/later improvements
• Various other fixes