** keep the control over portage tree updates
** provide an old version of the tree
** cherry pick updates ...--[[User:Tiziano|Tiziano]] ([[User talk:Tiziano|talk]]) 14:24, 3 January 2014 (CET) *** this should be avoided at all cost since it can lead to various sorts of breakages (ebuild <-> ebuild, ebuild <-> eclass, ebuild <-> profile, eclass <-> profile interaction) --[[User:Tiziano|Tiziano]] ([[User talk:Tiziano|talk]]) 14:24, 3 January 2014 (CET)
* Support for a development, staging and production branch
** Ability to automatically sync from upstream