Project:Toolchain/Support policies

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General guidelines

• An EAPI must be allowed for 2 years in stable packages to be used in toolchain.

GCC

• The latest version of each major GCC release is kept in the tree, i.e., 4.7.4, 4.8.5, 4.9.4, 5.4.0, 6.4.0; no removals of old versions
• You should be able to build any old in-tree GCC version with the one two major releases later, and vice versa
• Security fixes are backported to all unmasked versions, if possible.
• Bug fixes are backported to the newest stable version, if possible.

GLIBC

• Old versions are removed slowly, with ~8 major versions kept in the tree.
• Security fixes are backported to all unmasked versions.
• Bug fixes are backported to the newest stable version, if possible.