+* Portage now warns if an ebuild repository does not have a name, as several
+ new features in 2.2 make use of or require named repositories. The repository
+ name is stored in profiles/repo_name in each repository.
+
+portage-2.1.13
+==================================
+
+* FEATURES=userpriv and usersandbox are enabled by default.
+* FEATURES=usersync is enabled by default.
+* New sync-cvs-repo, sync-type and sync-uri attributes in repos.conf replace
+ SYNC variable.
+
+portage-2.1.12
+==================================
+
+* FEATURES=preserve-libs is enabled by default.
+* ACCEPT_RESTRICT variable may be used to mask packages based on RESTRICT.
+
+portage-2.1.11
+==================================
+* User-defined package sets can now be created by placing files in the
+ /etc/portage/sets/ directory. Refer to the emerge(1) and portage(5) man
+ pages for more information.
+* The "selected" package set, which includes packages listed in
+ /var/lib/portage/world, has been extended to include nested sets that may
+ be listed /var/lib/portage/world_sets.
+
+portage-2.1.10.61
+==================================
+* FEATURES=config-protect-if-modified is now enabled by default. This causes
+ the CONFIG_PROTECT behavior to be skipped for files that have not been
+ modified since they were installed.
+
+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
+ --autounmask-write option can be used to have config changes automatically
+ written to the appropriate files (respecting --ask and CONFIG_PROTECT). If
+ --autounmask behavior is not desired as the default behavior, then it can
+ be disabled by adding --autounmask=n to the EMERGE_DEFAULT_OPTS variable in
+ make.conf. Refer to the emerge(1) man page for more information.
+
+portage-2.1.9
+==================================
+* The emerge "world" set now includes separate "selected" and "system" sets,
+ where the "selected" set includes packages listed in /var/lib/portage/world.
+* Package set names in emerge arguments have to be prefixed with @ (exceptions:
+ 'world' and 'system' can be used without the prefix).
+* Configuration files now support atoms with wildcards inside the category and
+ package name parts of the atoms.
+* The functionality of the autounmask program is emulated by the new emerge
+ --autounmask option, which outputs required configuration changes for
+ package.accept_keywords and package.use.
+* The new emerge --exclude option allows packages to be excluded from the
+ dependency resolution. Doing so might result in a fatal error. See the
+ emerge(1) man page for details.
+* Per-package environment variables can be set with the new package.env
+ configuration file in /etc/portage/. See the portage(5) man page for details.
+* Support for per-package bashrc files in /etc/portage/env. See the portage(5)
+ man page for details.
+* The package.keywords configuration file in /etc/portage/ is now deprecated.
+ Instead use the package.accept_keywords file which has the same format and
+ behavior. See the portage(5) man page for details.
+* FEATURES="fixlafiles" (enabled by default): Rewrites newly installed .la
+ files in the same way dev-util/lafilefixer does. Note that this won't fix
+ your installed .la files.
+
+portage-2.1.8
+==================================
+* The new --rebuilt-binaries option will replace installed packages with binary
+ packages that have been rebuilt. Rebuilds are detected by comparison of
+ BUILD_TIME package metadata. This option is enabled automatically when using
+ binary packages (--usepkgonly or --getbinpkgonly) together with --update and
+ --deep.
+
+portage-2.1.7
+==================================
+* Default behavior for emerge commands has changed so that packages are only
+ updated when necessary. In order to ensure that all packages are updated
+ when possible, you must now specify the -u/--update option. See bug #275945
+ for the rationale behind this change.
+* If using python3, you may notice that some types of program output which
+ require a tty device (like the wget progress bar) will be disabled. This
+ is due to an upstream python issue: http://bugs.python.org/issue5380. See
+ bug #287648 for more information.
+* Licenses in the @EULA license group are now masked by the default
+ ACCEPT_LICENSE setting. You can unmask all licenses by setting
+ ACCEPT_LICENSE="*" in /etc/make.conf. See the make.conf(5) man page for
+ more information about ACCEPT_LICENSE.
+
+portage-2.1.6.12
+==================================
+* If you want overlay eclasses to override eclasses from other repos then see
+ the portage(5) man page for information about the new layout.conf and
+ repos.conf configuration files.
+
+portage-2.1.6
+==================================
+
+* The default behavior has changed for `emerge world` and `emerge system`
+ commands. These commands will reinstall all packages from the given set
+ unless an option such as --noreplace, --update, or --newuse is specified.
+* FEATURES=fixpackages is now enabled by default via make.globals. Set
+ FEATURES="-fixpackages" in make.conf if you'd like to disable it.
+* File collision protection is now enabled by default via make.globals with
+ FEATURES=protect-owned. In order to protect files from be overwritten or
+ removed a inappropriate times, it is recommended to leave protect-owned
+ (or the similar collision-protect feature) enabled at all times. If you
+ want to disable collision protection completely (not recommended), then
+ you need to ensure that neither protect-owned nor collision-protect are
+ enabled.