Editing Revision Control System (section)

{{short description|Version-control system}}
{{Lead too short|date=September 2020}}
{{Infobox software
| name = Revision Control System
| logo = 
| screenshot = 
| caption = 
| author = [[Walter F. Tichy]]
| developer = [[GNU Project]]<br>
[[The OpenBSD project]] (OpenRCS)
| released = {{Start date and age|1982}}
| latest release version = {{wikidata|property|reference|P348}}
| latest release date = {{start date and age|{{wikidata|qualifier|P348|P577}}}}
| programming language = [[C (programming language)|C]]
| operating system = [[Unix-like]], [[V (operating system)|V]]<ref>[http://bitsavers.org/pdf/stanford/v-system/V_6.0refMan_Jun86.pdf V-System 6.0 Reference Manual]</ref>
| platform = 
| genre = [[Version control]]
| license = [[GNU General Public License|GPL-3.0-or-later]]{{efn|GPL-3.0-or-later since 2010-06-24.}}<ref>{{cite web|url=https://git.savannah.gnu.org/cgit/rcs.git/commit/COPYING?id=f3cc1b9908300e07b97972785a7b1c946e75ca3c|title=Update license to GPLv3+.|date=2010-06-24}}</ref><br>
[[2-clause BSD license]] (OpenRCS)
| website = {{URL|https://www.gnu.org/software/rcs/}}
}}
'''Revision Control System''' ('''RCS''') is an early implementation of a [[version control system]] (VCS). It is a set of [[Unix|UNIX]] commands that allow multiple users to develop and maintain program code or documents.  With RCS, users can make their own revisions of a document, commit changes, and merge them. RCS was originally developed for programs but is also useful for text documents or configuration files that are frequently revised.<ref name=":1" />