RELEASE-NOTES-1.23

   1 Security reminder: MediaWiki does not require PHP's register_globals. If you
   2 have it on, turn it '''off''' if you can.
   3
   4 == MediaWiki 1.23 ==
   5
   6 THIS IS NOT A RELEASE YET
   7
   8 MediaWiki 1.23 is an alpha-quality branch and is not recommended for use in
   9 production.
  10
  11 === Configuration changes in 1.23 ===
  12 * $wgDebugLogGroups values may be set to an associative array with a
  13   'destination' key specifying the log destination. The array may also contain
  14   a 'sample' key with a positive integer value N indicating that the log group
  15   should be sampled by dispatching one in every N messages on average. The
  16   sampling is random.
  17 * In addition to the current exception log format, MediaWiki now serializes
  18   exception metadata to JSON and logs it to the 'exception-json' log group.
  19   This makes MediaWiki easier to integrate with log aggregation and analysis
  20   tools.
  21 * $wgSquidServersNoPurge now supports the use of Classless Inter-Domain
  22   Routing (CIDR) notation to specify contiguous blocks of IPv4 and/or IPv6
  23   addresses that should be trusted to provide X-Forwarded-For headers.
  24
  25 === New features in 1.23 ===
  26 * ResourceLoader can utilize the Web Storage API to cache modules client-side.
  27   Compared to the browser cache, caching in Web Storage allows ResourceLoader
  28   to be more granular about evicting stale modules from the cache while
  29   retaining the ability to retrieve multiple modules in a single HTTP request.
  30   This capability can be enabled by setting $wgResourceLoaderStorageEnabled to
  31   true. This feature is currently considered experimental and should only be
  32   enabled with care.
  33 * (bug 6092) Add expensive parser functions {{REVISIONID:}}, {{REVISIONUSER:}}
  34   and {{REVISIONTIMESTAMP:}} (with friends).
  35 * Add "wgRelevantUserName" to mw.config containing the current
  36   Skin::getRelevantUser value.
  37 * (bug 56033) Add content model to the page information.
  38 * Added Article::MissingArticleConditions hook to give extensions a chance to
  39   hide their (unrelated) log entries.
  40 * Added $wgOpenSearchDefaultLimit defining the default number of entries to show
  41   on action=opensearch API call.
  42
  43 === Bug fixes in 1.23 ===
  44 * (bug 41759) The "updated since last visit" markers (on history pages, recent
  45   changes and watchlist) and the talk page message indicator are now correctly
  46   updated when the user is viewing old revisions of pages, instead of always
  47   acting as if the latest revision was being viewed.
  48 * (bug 56443) Special:ConfirmEmail no longer shows a "Mail a confirmation code"
  49   when the email address is already confirmed. Also, consistently use
  50   "confirmed", rather than "authenticated", when messaging whether or not the
  51   user has confirmed an email address.
  52 * (bug 19415) action=render no longer shows section edit links. This affects
  53   behavior of several other features where (bogus) section edit links will
  54   disappear, such as file description pages loaded via $wgUseInstantCommons or
  55   pages transcluded cross-wiki via $wgEnableScaryTranscluding.
  56 * (bug 56912) Show correct link color on cached result of Special:DeadendPages.
  57 * Classes TitleListDependency and TitleDependency have been removed, as they
  58   have been found unused in core and extensions for a long time.
  59
  60 === API changes in 1.23 ===
  61 * (bug 54884) action=parse&prop=categories now indicates hidden and missing
  62   categories.
  63
  64 === Languages updated in 1.23===
  65
  66 MediaWiki supports over 350 languages. Many localisations are updated
  67 regularly. Below only new and removed languages are listed, as well as
  68 changes to languages because of Bugzilla reports.
  69
  70 === Other changes in 1.23 ===
  71 * The rc_type field in the recentchanges table has been superseded by a new
  72   rc_source field.  The rc_source field is a string representation of the
  73   change type where rc_type was a numeric constant.  This field is not yet
  74   queried but will be in a future point release of 1.22.
  75 ** Utilize update.php to create and populate this new field.  On larger wiki's
  76    which do not wish to update recentchanges table in one large update please
  77    review the sql and comments in maintenance/archives/patch-rc_source.sql.
  78 ** The rc_type field of recentchanges will be deprecated in a future point
  79    release.
  80 * The global variable $wgArticle has been removed after a lengthy deprecation.
  81 * The global functions addButton and insertTags (for mw.toolbar.addButton and
  82   mw.toolbar.insertTags) now emits mw.log.warn when accessed.
  83
  84 == Compatibility ==
  85
  86 MediaWiki 1.23 requires PHP 5.3.2 or later.
  87
  88 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
  89 support for them is somewhat less mature. There is experimental support for
  90 Oracle.
  91
  92 The supported versions are:
  93
  94 * MySQL 5.0.2 or later
  95 * PostgreSQL 8.3 or later
  96 * SQLite 3.3.7 or later
  97 * Oracle 9.0.1 or later
  98
  99 == Upgrading ==
 100
 101 1.23 has several database changes since 1.22, and will not work without schema
 102 updates. Note that due to changes to some very large tables like the revision
 103 table, the schema update may take quite long (minutes on a medium sized site,
 104 many hours on a large site).
 105
 106 If upgrading from before 1.11, and you are using a wiki as a commons
 107 repository, make sure that it is updated as well. Otherwise, errors may arise
 108 due to database schema changes.
 109
 110 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 111 new database fields are filled with data.
 112
 113 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 114 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 115 with MediaWiki 1.21.
 116
 117 Don't forget to always back up your database before upgrading!
 118
 119 See the file UPGRADE for more detailed upgrade instructions.
 120
 121 For notes on 1.21.x and older releases, see HISTORY.
 122
 123 == Online documentation ==
 124
 125 Documentation for both end-users and site administrators is available on
 126 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 127 for pages that explicitly state that their contents are in the public domain):
 128
 129         https://www.mediawiki.org/wiki/Documentation
 130
 131 == Mailing list ==
 132
 133 A mailing list is available for MediaWiki user support and discussion:
 134
 135         https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 136
 137 A low-traffic announcements-only list is also available:
 138
 139         https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 140
 141 It's highly recommended that you sign up for one of these lists if you're
 142 going to run a public MediaWiki, so you can be notified of security fixes.
 143
 144 == IRC help ==
 145
 146 There's usually someone online in #mediawiki on irc.freenode.net.