pcb-rnd is a rapid moving independent project that originated as a fork of the Pcb codebase.
From the pcb.html documentation:
Pcbwas first written by Thomas Nau for an Atari ST in 1990 and ported toUNIXandX11in 1994. It was not intended as a professional layout system, but as a tool which supports people who do some home-developing of hardware. Release history and credits forPcbcan be found in the documentation files in mainlinePcb, and currently as of this writing at http://pcb.geda-project.org/manual.html
In Fall 2013, Tibor Palinkas started an unofficial fork of Pcb to make and share changes and improvements, and over the following years the fork was officially announced, adopted additional users, and reached various milestones
15:39 < Igor2> $ svn log -r 1 svn://repo.hu/pcb-rnd 15:39 < Igor2> ------------------------------------------------------------------------ 15:39 < Igor2> r1 | igor2 | 2013-08-30 17:33:06 +0200 (Fri, 30 Aug 2013) | 2 lines 15:39 < Igor2> -Add: trunk