"GNU Arch (Arch) is a software version control system that was created by programmer TomLord to meet his version control needs. It’s changeset-oriented, supports distributed development and branching, and has sophisticated merge functionality..."

"The Bazaar version control system recently became a GNU project. We set out several years ago to build a version control system that would suit the collaboration and cooperation at the heart of free software, and Bazaar is the result of that effort.

Giggle is a graphical frontend for the git content tracker (think of gitk on GTK+).

A very quick command line tip today, for users of pretty much any Unix-based operating system, including Linux distributions. When you're looking up information on a certain web site or domain name, you might be used to using whois functions on websites such as to see who owns a domain.

"Since Linus Torvalds presentation at Google about git in May 2007, the adoption and interest for Distributed Version Control Systems has been constantly rising. We will introduce the concept of Distributed Version Control, see when to use it, why it may be better than what you're currently using, and have a look at three actors in the area: git, Mercurial and Bazaar..."

"Git has sometimes been described as a versioning file-system which happens to support the underlying notions of version control. And while most people do simply use Git as a version control system, it remains true that it can be used for other tasks as well.

GIT is the source control tool, a distributed version control system (dvcs) which is written in C. This provides a history of the files that are maintained by it. In distributed version control each user has a complete copy of the code so there is no central code repository.

Fossil is a new version control system based on sqlite (and in fact authored by sqlite's author). While the world doesn't really need another source control system, Fossil has some very interesting, if not downright compelling, unique features.

According to its developers, "Mercurial is a fast, lightweight Source Control Management system designed for efficient handling of very large distributed projects." Dozens of projects already use the software. Here's how you can get started with some basic version control tasks using Mercurial.