This should help people who get warnings about unknown value(s) in
FEATURES due to having FEATURES=fixpackages enabled in make.conf even
though it's been enabled by default for almost 3 years (bug #386871).
/var/lib/portage/world, has been extended to include nested sets that may
be listed /var/lib/portage/world_sets.
+portage-2.1.10.27
+==================================
+* FEATURES=fixpackages is now enabled unconditionally. Set --package-moves=n
+ in EMERGE_DEFAULT_OPTS if you need to temporarily avoid package moves for
+ some reason.
+
portage-2.1.10
==================================
* The emerge --autounmask option is now enabled by default. The