How to use Revision?

[Altera_Forum]

I have FPGA designs that go through various changes (some good, some bad) and want to keep different revisions. Can I do this with the free version or do I need the subscription to do revision tracking?  

 Thanks.

[Altera_Forum]

i would recommend using a distributed revision control system tool like Mercurial instead: 

 http://mercurial.selenic.com/  http://tortoisehg.bitbucket.org/  it has low overhead (read: isn't annoying) and will give you a much better indication of changes you've made over time than Quartus revisions

[Altera_Forum]

I make copies of the whole design for my revision control. Revisions in Quartus only let you manage different .qsf files(which can point to different source files), but it's not hard to do it manually(plus I can open multiple revisions at the same time and compare, since they're completely separate projects). You can also keep common source files outside of the project directory, so you're not making copies of that.

[Altera_Forum]

the best way is to copy the main folder and rename it to the ver number, and the working library will always called current_version or somthing like that