What are the advantages of using SVN over CVS?
My company is using CVS as our de-facto standard for source control. However, I've heard a lot of people say that SVN is better.
I know SVN is newer, but other than that, I'm unfamiliar with its benefits.
What I'm looking for is a good, succinct comparison of the two systems, noting any advantages or disadvantages of each in a Java/Eclipse development environment.
CVS only tracks modification on a file-by-file basis, while SVN tracks a whole commit as a new revision, which means that it is easier to follow the history of your project. Add the fact that all modern source control software use the concept of revision so it is far easier to migrate from SVN than it is from CVS.
There is also the atomic commit problem. While I only encountered it once, it is possible that 2 people committing together in CVS can conflict each other, losing some data and putting your client in an inconsistent state. When detected early, these problems are not major because your data is still out there somewhere, but it can be a pain in a stressful environment.
And finally, not many tools are developed around CVS anymore. While the new and shiny-new tools like Git or Mercurial definitely lack tools yet, SVN has a pretty large application base on any system.
EDIT 2020: Seriously, this answer is 12 years old now. Forget SVN, go use Git like everyone else!
One of the many comparisons:
http://wiki.scummvm.org/index.php/CVS_vs_SVN
Now this is very specific to that project, but a lot of stuff apllies in general.
Pro Subversion:
- Support for versioned renames/moves (impossible with CVS): Fingolfin, Ender
- Supports directories natively: It's possible to remove them, and they are versioned: Fingolfin, Ender
- File properties are versioned; no more "executable bit" hell: Fingolfin
- Overall revision number makes build versioning and regression testing much easier: Ender, Fingolfin
- Atomic commits: Fingolfin
- Intuitive (directory-based) branching and tagging: Fingolfin
- Easier hook scripts (pre/post commit, etc): SumthinWicked (I use it for Doxygen after commits)
- Prevents accidental committing of conflicted files: Salty-horse, Fingolfin
- Support for custom 'diff' command: Fingolfin
- Offline diffs, and they're instant: sev