Apache Subversion is a version control option that is free to download and open source under the Apache 2.0 license.
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Sourcetree
Score 8.1 out of 10
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Sourcetree, by Atlassian, is a free version control client for Mac and Windows that works with Git and Mercurial repositories. It's distributed version control allows developers to visualize code, review changesets, stash, cherry-pick between branches or commit with a single click.
It's a relatively simple version control system so it works great for an individual or small team (less than 10 people). But if you have a medium to large team, especially one with members distributed over a large geographic area, or one where individuals need to be able to work "offline" without access to a central server, Apache Subversion will likely not be the best choice.
Also, if you're maintaining an open-source project where outside people will be interacting with your code repository, git is probably a better choice because it's becoming the de-facto standard these days and what most developers are familiar with.
Sourcetree is a great tool for any Git user. Whether you're well versed using Git commands in the terminal or a newbie, this tool wonderfully supplements your workflow. A quick glance at the UI and you know where your project stands. I find it most helpful when I need to determine what changed in a particular file in past commits. Having a visual graph of branches helps me to understand the big picture. Even though I'm comfortable operating Git most often in the command line, I always have Sourcetree open to check my work and see where my colleagues are.
Distributed development - I've never worked in an environment where distributed development (developers widely scattered geographically) was a factor, but that's why git exists.
Merging - Merging of code from one branch to another can be painful, especially if it's not done frequently. (On the other hand, doing merges is one of the reasons I get a nice salary, so I can't complain too much!)
Acceptance - Let's face it, git is what "all the cool kids are using." If you've got a bunch of developers fresh out of school, they'll probably know git and not Subversion.
While there are interesting alternatives, such a GIT, Subversion has been a breath of fresh air compared to its predecessors like CVS or Microsoft Source Safe (now called Team Foundation Server). Its ease of use and high adoption rate is going to keep me using this product for years to come.
Git has become the new standard of version control, with its support for distributed design. As a tool to manage and control versions, Subversion does it well, but Git is the future.
I tried GitHub Desktop for a couple of days, but it is just not visual enough for me. It has no graph display for branches. Too much clicking is required to get info that the Sourcetree UI shows by default. Sourcetree gives you that "Big Picture" dashboard. GitHub Desktop seems unfinished to me due to its lack of this overview screen.