Here are references to RCS and related free software and documentation. Some of this information changes often; see the Frequently Asked Questions for more up-to-date references. $FreeBSD$ Frequently Asked Questions (FAQs) for software engineering; e.g. see . for configuration management for CVS (see below) RCS and related GNU project software The RCS project distribution directory also contains beta versions, ports, and prebuilt documentation. The GNU project distribution directory contains: diffutils-N-tar.gz the latest diffutils release; recommended for RCS emacs-N-tar.gz The latest Emacs release contains VC, a version-control package that makes RCS easier to use. make-N-tar.gz GNU Make, which can automatically build from RCS files. rcs-N-tar.gz the latest RCS release cvs-N-tar.gz the latest official CVS release (see below) DOS, OS/2 ports NT port CVS CVS, the Concurrent Versions System, keeps tracks of source changes made by groups of developers working on the same files concurrently, allowing them to resync as needed. These pages have useful information about CVS. CVS 1.3 is the latest released version. CVS 1.4 is in alpha test, but it is recommended if you are installing CVS for the first time, or on a recent operating system. DOS, OS/2 ports NT port Cyclic CVS adds network transparency to CVS; it supports efficient, reliable, and authenticated repository access via TCP/IP. Other software that uses RCS Aegis manages revisions, baselines, mandatory reviews, and mandatory testing. BCS, the Baseline Configuration System, manages revisions, baselines, and staging areas. ODE, the Open Software Foundation Development Environment, manages revisions, builds, and sandboxes. OSF uses it for their own development. Odin, a `make' replacement, can build directly from arbitrary revisions without requiring checkouts of working copies. It also handles parallel builds on multiple remote hosts and of multiple variants.