This package contains three source control utilities from Peter Miller fhist: Keeps track of versions of a file. fcomp: Compares two versions of a file. fmerge: Merges together edits from two descendants of a file. This program is based on the algorithm in ``An O(ND) Difference Algorithm and Its Variations'', Eugene W. Myers, TR 85-6, 10-April-1985, Department of Computer Science, The University of Arizona, Tuscon, Arizona 85721. See also: ``A File Comparison Program, Webb Miller and Eugene W. Myers'', Software Practice and Experience, Volume 15, No. 11, November 1985.