EAPI

EAPI is ebuilds and other package manager related files which informs the package manager about the file syntax and content.]] It is, in effect, the version of the Package Manager Specification (PMS) that the file adheres to.

The EAPI versions (and their meaning) are defined in the Package Manager Specification. Currently, EAPIs 0 through 7 are defined and officially supported. In the main Gentoo repository, EAPIs 1 and 3 are banned while 0, 2, 4 and 5 are deprecated.

External resources

 * EAPI Usage and Description (Gentoo Development Guide)
 * Michał Górny - The ultimate guide to EAPI 7