A reasonably straightforward update. Version 2.25.0 (3-Sept-2015) 1. Added new -F option that allows one to set the minimum fraction of overlap required for the B interval. This complements the functionality of the -f option.Available for intersect, coverage, map, subtract, and jaccard. 2. Added new -e option that allows one to require that the minimum fraction overlap is achieved in either A _OR_ B, not A _AND_ B which is the behavior of the -r option. Available for intersect, coverage, map, subtract, and jaccard. 3. Fixed a longstanding bug that prevented genomecov from reporting chromosomes that lack a single interval. 4. Modified a src directory called "aux" to "driver" to prevent compilation errors on Windows machines. Thanks very much to John Marshall. 5. Fixed a regression that caused the coverage tool to complain if BED files had less than 5 columns. 6. Fixed a variable overload bug that prevented compilation on Debian machines. 7. Speedups to the groupby tool. 8. New -delim option for the groupby tool. 9. Fixed a bug in map that prevented strand-specifc overlaps from being reported when using certain BEDPLUS formats. 10. Prevented excessive memory usage when not using pre-sorted input.