Altium Version Control Part 1
Altium Designer supports Subversion (SVN) and Concurrent Versions System (CVS). Because it has direct support for SVN, it provides access to the majority of the standard SVN commands, including the ability to create a repository, commit/update files, as well as being able to access (check out) file revisions from within Altium Designer. This integrates with the schematic and PCB comparison features, making it easy to quickly compare and identify differences between two revisions of a schematic or PCB document, and for PCB designs, resolving concurrent revision conflicts using Altium Designer's Collaboration capabilities