1 Release Notes; upgrade information mainly.
2 Features/major bugfixes are listed in NEWS
5 ==================================
7 * The python namespace for portage has been sanitized, all portage related code
8 is now contained within the portage namespace. External script should be updated
9 accordingly, though links exist for backward compability.
10 * -* support in package.keywords was changed as it was inconsistent with
11 ACCEPT_KEYWORDS behavior (also see http://dev.gentoo.org/~genone/docs/KEYWORDS.stupid).
12 Previously having -* in package.keywords matched packages with KEYWORDS="-*",
13 now it resets the ACCEPT_KEYWORDS list for the given atom like it does when
14 used in ACCEPT_KEYWORDS.
15 For packages that don't specify any other KEYWORDS you can use the new ** token
16 as documented in portage(5) to disable KEYWORDS filtering completely.
17 * Portage now warns if an ebuild repository does not have a name, as several new
18 features in 2.2 make use of or require named repositories. The repository name
19 is stored in profiles/repo_name in each repository.
20 * Package set support: There are several important notes regarding package sets:
21 - setnames have to be prefixed with @ (exceptions: 'world' and 'system' can be
22 used without the prefix)
23 - they may currently only include simple and versioned atoms or other sets, use
24 conditionals or any-of constructs aren't possible yet
25 - emerge makes no difference atm whether you pass a setname or all atoms contained
26 in the set to it, this means that without options packages will be remerged if
27 already installed, or in the case of --unmerge all atoms in a set will be
28 unmerged even if they are depended upon by other packages. This may change in
30 - sets can be referenced either in other file-based sets or as argument to emerge, but
31 not in ebuilds, config files or other tools at this time.
32 * "world" does no longer include "system" unconditionally, but you can add
33 "@system" to the worldfile to restore the old state.
36 ==================================
38 * If you have an overlay then you should remove **/files/digest-*
39 files (Manifest1) because they are no longer supported.
40 * If earlier versions of portage will be used to generate manifests
41 for your overlay then you should add a file named manifest1_obsolete
42 to the root of the repository in order to disable generation of the
43 Manifest1 digest files.
46 ==================================
48 * Visibility filtering is now supported for binary packages, so masking behavior
49 is essentially equivalent to that of ebuilds.
50 * There is no need to have a complete portage tree available when installing binary
51 packages or uninstalling packages, but a warning message will still be displayed if
52 it appears that a valid profile is not available.
53 * The emerge --search action supports searching of both installed and binary packages
54 The --usepkg and --usepkgonly options control which repositories are searched.
57 ==================================
59 * Portage now requires >=python-2.4, but doesn't need pycrypto anymore if
60 >=python-2.5 is installed and openssl supports the rmd160 hash.
61 * The "save_summary" and "echo" elog modules are now enabled by default. Setting
62 PORTAGE_ELOG_SYSTEM in make.conf will override this, so if you don't want elog
63 set PORTAGE_ELOG_SYSTEM="" in make.conf
64 * The unmerge process will remove any file that is not claimed by another
65 package in the same slot and is not protected by CONFIG_PROTECT, even if the
66 modification time or checksum differs from the file that was originally
67 installed. The old behavior is still available by adding -unmerge-orphans
69 * The world file now supports slot atoms such as 'sys-devel/gcc:3.4'. In some
70 cases, emerge --depclean may remove slots that it would not have removed
71 in the past. The emerge --noreplace command can be used to add an atom to the
72 world file and prevent matching packages from being removed. A slot atom
73 will be recorded in the world file for any atom that is precise enough to
74 identify a specific slot.
75 * For safer operation, emerge --prune will not unmerge packages that have
76 reverse dependencies. Use --verbose to display reverse dependencies. Use
77 --nodeps to completely ignore dependencies.
78 * emerge --depclean now accepts atoms and will unmerge only the specified
79 packages if nothing depends on them. Use --verbose to display reverse
83 ==================================
85 * Depending on the number of packages installed, users may notice a difference
86 in the time taken for dependency calculations. This performance penalty is
87 due to the addition of important new features which include the ability to
88 detect reverse blockers, the building of a complete dependency graph, and the
89 ability to use installed packages to satisify dependencies even after their
90 ebuilds have been removed from the portage tree.
91 * emerge does not necessarily update build time dependencies that are not
92 strictly required. See the --with-bdeps option in the emerge(1) man page.
95 ==================================
97 * emerge --search doesn't use regular expressions now anymore by default, so
98 emerge --search dvd+rw-tools now works as expected. Regular expressions can be enabled
99 by prefixing the search string with %.
100 * emerge --depclean algorithm is much safer than the old one.
101 * emerge --newuse detects changes in IUSE that previously went undetected.
104 ==================================
106 * new cache framework, breaking all old cache modules.
107 If you're having problems with portage_db_cdb, this is likely the cause.
108 * USE flag output ordering has changed. The old ordering is now an option
109 by the name of --alphabetical. Adding the option to EMERGE_DEFAULT_OPTS
110 in make.conf will restore the old behaviour permanently.
111 * The deprecated --inject has been removed, use /etc/portage/profile/package.provided
112 * The deprecated --upgradeonly has been removed, use /etc/portage/package.*
114 * 'emerge sync' has been deprecated, use 'emerge --sync' instead (same
116 * Tools that call emerge should override the EMERGE_DEFAULT_OPTS environment
117 variable or use the emerge --ignore-default-opts option.
118 * rsync option handling has been redesigned, instead of RSYNC_* variables
119 use PORTAGE_RSYNC_EXTRA_OPTS from now on.
120 * autouse (use.defaults) has been deprecated by specifying USE_ORDER in make.defaults
121 Users may still turn this back on by specifying USE_ORDER="env:pkg:conf:auto:defaults"
122 in make.conf. Interested in figuring out what use flags were turned off? Check out
123 /usr/portage/profiles/base/use.defaults and other use.defaults files that correspond