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IUS

IUS is a project started by Rackspace to provide "Inline with Upstream Stable" package for RedHat/CentOS. Tools such as git are often outdated when installing via the standard RedHat base and epel repositories. IUS have a decent about page describing why the IUS project exists, read the link if you're interested.

Consuming packages from IUS

While there are setup and usage pages on the IUS website, there are still a couple of things to note when trying to find or install a package which are not well documented.

Package names

As per the safe replacement packages notes, IUS packages "Uses a different name than the stock package to prevent unintended upgrades". This means that with the ius release repo enabled you may need to search for a wildcard name, like yum list git*, in order to find the package name to install. The IUS package will not be called just git as this would clash with the stock package name from yum.

There is a package search link on the IUS site. This navigates to GitHub where you can see some of the packages available. Searching here for git yielded the repo iusrepo/git222. With the ius-release repo enabled, searching for packages matching git* also showed git2u which installs git v2.16.5-1.