RELEASE-NOTES

   1 = MediaWiki release notes =
   2
   3 Security reminder: MediaWiki does not require PHP's register_globals
   4 setting since version 1.2.0. If you have it on, turn it *off* if you can.
   5
   6 == MediaWiki 1.12 ==
   7
   8 THIS IS NOT A RELEASE YET
   9
  10 MediaWiki is now using a "continuous integration" development model with
  11 quarterly snapshot releases. The latest development code is always kept
  12 "ready to run", and in fact runs our own sites on Wikipedia.
  13
  14 Release branches will continue to receive security updates for about a year
  15 from first release, but nonessential bugfixes and feature developments
  16 will be made on the development trunk and appear in the next quarterly release.
  17
  18 Those wishing to use the latest code instead of a branch release can obtain
  19 it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
  20
  21 === Configuration changes in 1.12 ===
  22 * Marking edits as bot edits with Special:Contributions?bot=1 now requires the
  23   markbotedit permission, rather than the rollback permission previously used.
  24   This permission is assigned by default to the sysop group.
  25 * MediaWiki now checks if serialized files are out of date. New configuration
  26   variable $wgCheckSerialized can be set to false to enable old behavior (i.e.
  27   to not check and assume they are always up to date)
  28
  29 === New features in 1.12 ===
  30 * (bug 10735) Add a warning for non-descriptive filenames at Special:Upload
  31 * Add {{filepath:}} parser function to get full path to an uploaded file,
  32   complementing {{fullurl:}} for pages.
  33 * (bug 11136) If using Postgres, search path is explicitly set if wgDBmwschema
  34   is not set to 'mediawiki', allowing multiple mediawiki instances per user.
  35 * (bug 11151) Add descriptive <title> to revision history page
  36 * (bug 5412) Add feed links for the site to all pages
  37 * (bug 11353) Add ability to retrieve raw section content via action=raw
  38 * (bug 6909) Show relevant deletion log lines when uploading a previously
  39   deleted file
  40 * On SkinTemplate based skins (like MonoBook), omit confusing "edit"/"view
  41   source" tab entirely if the page doesn't exist and the user isn't allowed to
  42   create it
  43 * Clarify instructions given when an exception is thrown
  44 * AuthPlugin added strictUserAuth() method to allow per-user override
  45   of the strict() authentication behavior.
  46 * (bug 7872) Deleted revisions can now be viewed as diffs showing changes
  47   against the previous revision, whether currently deleted or live.
  48 * Added tooltips for the "Go" and "Search" buttons
  49 * (bug 11649) Show input form when Special:Whatlinkshere has no parameters
  50 * isValidEmailAddr hook added to User method of that name, to allow, e.g., re-
  51   stricting e-mail addresses to a specific domain
  52 * Removed "Clear" link in watchlist editor tools, as people were afraid to
  53   click it. Existing clear links will fall back to the raw editor, which is
  54   very easy to clear your watchlist with.
  55 * (bug 1405) Add wgUseNPPatrol option to control patroling for new articles
  56   on Special:Newpages
  57 * LogLine hook added to allow formatting custom entries in Special:Log.
  58 * Support for Iranian calendar
  59 * (bug 1401) Allow hiding logged-in users, bots and patrolled pages on
  60   Special:Newpages
  61 * ChangesListInsertArticleLink hook added for adding extra article info to RC.
  62 * MediaWikiPerformAction hook added for diverting control after the main
  63   globals have been set up but before any actions have been taken.
  64 * BeforeWatchlist hook added for filtering or replacing watchlist.
  65 * SkinTemplateTabAction hook added for altering the properties of tab links.
  66 * OutputPage::getRedirect public method added.
  67 * (bug 11848) Allow URL parameters 'editintro' and 'preload' in Special:Mypage
  68   and Special:Mytalk
  69 * Add ot=raw to Special:Allmessages
  70 * Support for Hebrew calendar
  71 * Support for Hebrew numerals in dates and times
  72 * (bug 11315) Signatures can be configured in [[MediaWiki:Signature]] and
  73   [[MediaWiki:Signature-anon]]
  74 * Signatures for anonymous users link to Special:Contributions page rather than
  75   user page
  76 * Added --override switch for disabled pages in updateSpecialPages.php
  77 * Provide a unique message (ipb_blocked_as_range) if unblock of a single IP
  78   fails
  79   because it is part of a blocked range.
  80 * (bug 3973) Use a separate message for the email content when an account is
  81   created by another user
  82 * dumpTextPass.php can spawn fetchText.php as a subprocess, which should restart
  83   cleanly if database connections fail unpleasantly.
  84 * (bug 12028) Add Special:Listbots as shortcut for Special:Listusers/bot
  85 * (bug 9633) Add a predefined list of delete reasons to the deletion form
  86 * Show a warning message when creating/editing a user (talk) page but the user
  87   does not exists
  88 * (bug 8396) Ignore out-of-date serialised message caches
  89 * (bug 12195) Undeleting pages now requires 'undelete' permission
  90 * Only show most recent 5000 revisions on Special:Undelete by default. Accept
  91   limit and offset parameters. Undelete with no revisions selected still
  92   undeletes all revisions, regardless of how many are displayed.
  93 * Add "show all" option to Special:Undelete when some revisions are excluded,
  94   despite that showing all revisions may fail less than gracefully.
  95
  96 === Bug fixes in 1.12 ===
  97
  98 * Subpages are now indexed for searching properly when using PostgreSQL
  99 * (bug 3846) Suppress warnings from, e.g. open_basedir when scanning for
 100   ImageMagick, diff3 et al. during installation [patch by Jan Reininghaus]
 101 * (bug 7027) Shift handling of deletion permissions-checking to
 102   getUserPermissionsErrors.
 103 * Login and signup forms are now more correct for right-to-left languages.
 104 * (bug 5387) Block log items on RecentChanges don't make use of possible
 105   translations
 106 * (bug 11211) Pass, as a parameter to the protectedpagetext interface
 107   message, the level of protection.
 108 * (bug 9611) Supply the blocker and reason for the cantcreateaccounttext
 109   message.
 110 * (bug 8759) Fixed bug where rollback was allowed on protected pages for wikis
 111   where rollback is given to non-sysops.
 112 * (bug 8834) Split off permission for editing user JavaScript and CSS from
 113   editinterface to a new permission key editusercssjs.
 114 * (bug 11266) Set fallback language for Fulfulde (ff) to French
 115 * (bug 11179) Include image version deletion comment in public log
 116 * Fixed notice when accessing special page without read permission and whitelist
 117   is not defined
 118 * (bug 9252) Fix for tidy funkiness when using editintro mode
 119 * (bug 4021) Fix for MySQL wildcard search
 120 * (bug 10699) Fix for MySQL phrase search
 121 * (bug 11321) Fix width of gallerybox when option "width=xxx" is used
 122 * (bug 7890) Special:BrokenRedirects links deleted redirects to a non-existent
 123   page
 124 * Fix initial statistics when installing: add correct values
 125 * (bug 11342) Fix several 'returnto' links in permissions/error pages which
 126   linked to the main page instead of targetted page
 127 * Strike the link to the redirect rather than using an asterisk in
 128   Special:Listredirects
 129 * (bug 11355) Fix false positives in Safe Mode and other config detection
 130   when boolean settings are disabled with 'Off' via php_admin_value/php_value
 131 * (bug 11292) Fixed unserialize errors with Postgres by creating special Blob
 132   object.
 133 * (bug 11363) Make all metadata fields bytea when using Postgres.
 134 * (bug 11331) Add buildConcat() and use CASE not IF for DB compatibility. Make
 135   oldimage cascade delete via image table for Postgres, change fa_storage_key
 136   TEXT.
 137 * (bug 11438) Live Preview chops returned text
 138 * Show the right message on account creation when the user is blocked
 139 * (bug 11450) Fix creation of objectcache table on upgrade
 140 * Fix namespace selection after submit of Special:Newpages
 141 * Make input form of Special:Newpages nicer for RTL wikis
 142 * (bug 11462) Fix typo in LanguageGetSpecialPageAliases hook name
 143 * (bug 11474) Fix unintentional fall-through in math error handling
 144 * (bug 11478) Fix undefined method call in file deletion interface
 145 * (bug 278) Search results no longer highlight incorrect partial word matches
 146 * Compatibility with incorrectly detected old-style DJVU mime types
 147 * (bug 11560) Fix broken HTML output from weird link nesting in edit comments.
 148   Nested links (as in image caption text) still don't work _right_ but they're
 149   less wrong
 150 * (bug 9718) Remove unnecessary css from main.css causing spacing issues on
 151   some browsers.
 152 * (bug 11574) Add an interface message loginstart, which, similarly to loginend,
 153   appears just before the login form. Patch by MinuteElectron.
 154 * Do not cache category pages if using 'from' or 'until'
 155 * Created new hook getUserPermissionsErrors, to go with userCan changes.
 156 * Diff pages did not properly display css/js pages.
 157 * (bug 11620) Add call to User::isValidEmailAddr during accout creation.
 158 * (bug 11629) If $wgEmailConfirmToEdit is true, require people to supply an
 159   email address when registering.
 160 * (bug 11612) Days to show in recent changes cannot be larger than 7
 161 * (bug 11131) Change filearchive width/height columns to int for Postgres
 162 * Support plural in undeleted{revisions,revisions-files,files}
 163 * (bug 11343) If the database is read-only, ensure that undelete fails.
 164 * (bug 11690) Show revert link for page moves in Special:Log to allowed users
 165   only
 166 * Initial-lowercase prefix checks in namespaceDupes.php now actually work.
 167 * Fix regression in LinkBatch.php breaking PHP 5.0
 168 * (bug 11452) wfMsgExt uses sometimes wrong language object for parsing magic
 169   words when called with options ''parsemag'' or ''content''.
 170 * (bug 11727) Support plural in 'historysize' message
 171 * (bug 11744) Incorrect return value from Title::getParentCategories()
 172 * (bug 11762) Fix native language name of Akan (ak)
 173 * (bug 11722) Fix inconsistent case in unprotect tabs
 174 * (bug 11795) Be more paranoid about confirming accept-encoding header is
 175   present
 176 * (bug 11809) Use formatNum() for more numbers
 177 * (bug 11818) Fix native language name of Inuktitut (iu)
 178 * Remove all commas when parsing float numbers in sorted tables
 179 * Limit text field of deletion, protection and user rights changes reasons to
 180   255 characters (already restricted in the database)
 181 * In the deletion default reasons, calculate how much text to get from the
 182   article text, rather than getting 150 characters (which may be too much)
 183 * Add two messages for Special:Blockme which were used but undefined
 184 * (bug 11921) Support plural in message number_of_watching_users_pageview
 185 * If an IP address is blocked as part of a rangeblock, attempting to unblock
 186   the single IP should not unblock the entire range.
 187 * (bug 6695) Fix native language name of Southern Sotho (Sesotho) (st)
 188 * Make action=render follow redirects by default
 189 * If restricted read access was enabled, whitelist didn't work with special
 190   pages which had spaces in theirs names
 191 * If restricted read access was enabled, requests for non-existing special pages
 192   threw an exception
 193 * Feeds for recent changes now provide correct URLs for the change, not just
 194   the page
 195 * Check for if IP is blocked as part of a range when unblocking (see above bug-
 196   fix) was faulty. Now fixed.
 197 * Fixed wpReason URL parameter to action=delete.
 198 * Do not force a password for account creation by email
 199 * Ensure that rate-limiting is applied to rollbacks.
 200 * Make a better rate-limiting error message (i.e. a normal MW error,
 201   rather than an "Internal Server Error").
 202 * Do not present an image bigger than the source when 'frameless' option is used
 203   (to be consistent with the 'thumb' option now)
 204 * Support {{PLURAL}} for import log
 205 * Make sure that the correct log entries are shown on Special:Userrights even
 206   for users with special characters in their names
 207 * The number of watching users in watchlists was always reported as 1
 208 * namespaceDupes.php no longer dies when coming across an illegal title
 209 * (bug 12143) Do not show a link to patrol new pages for non existent pages
 210 * (bug 12166) Fix XHTML validity for Special:Emailuser
 211 * (bug 11346) Users who cannot edit a page can now no longer unprotect it.
 212 * (bug 451) Add a generic Traditional / Simplified Chinese conversion table,
 213   instead of a Traditional conversion with Taiwan variant, and a Simplified
 214   conversion with China variant.
 215 * (bug 12178) Fix wpReason parameter to action=delete, again.
 216 * Graceful behavior for updateRestrictions.php if a page already has records
 217   in the page_restrictions matching its old page_restrictions field.
 218   May help with odd upgrade issues or race condition.
 219 * (bug 11993) Remove contentsub "revision history"
 220
 221 == Parser changes in 1.12 ==
 222
 223 The parser pass order has changed from
 224
 225    * Extension tag strip and render
 226    * HTML normalisation and security
 227    * Template expansion
 228    * Main section...
 229
 230 to
 231
 232    * Template and extension tag parse to intermediate representation
 233    * Template expansion and extension rendering
 234    * HTML normalisation and security
 235    * Main section...
 236
 237 The main effect of this for the user is that the rules for uncovered syntax
 238 have changed.
 239
 240 Uncovered main-pass syntax, such as HTML tags, are now generally valid, whereas
 241 previously in some cases they were escaped. For example, you could have "<ta" in
 242 one template, and "ble>" in another template, and put them together to make a
 243 valid <table> tag. Previously the result would have been "&lt;table&gt;".
 244
 245 Uncovered preprocessor syntax is generally not recognised. For example, if you
 246 have "{{a" in Template:A and "b}}" in Template:B, then "{{a}}{{b}}" will be
 247 converted to a literal "{{ab}}" rather than the contents of Template:Ab. This
 248 was the case previously in HTML output mode, and is now uniformly the case in
 249 the other modes as well. HTML-style comments uncovered by template expansion
 250 will not be recognised by the preprocessor and hence will not prevent template
 251 expansion within them, but they will be stripped by the following HTML security
 252 pass.
 253
 254 The rules for template expansion during message transformation were
 255 counterintuitive, mostly accidental and buggy. There are a few small changes in
 256 this version: for example, templates with dynamic names, as in "{{ {{a}} }}",
 257 are fully expanded as they are in HTML mode, whereas previously only the inner
 258 template was expanded. I'd like to make some larger breaking changes to message
 259 transformation, after a review of typical use cases.
 260
 261 The header identification routines for section edit and for numbering section
 262 edit links have been merged. This removes a significant failure mode and fixes a
 263 whole category of bugs (tracked by bug #4899). Wikitext headings uncovered by
 264 template expansion or comment removal will still be rendered into a heading tag,
 265 and will get an entry in the TOC, but will not have a section edit link.
 266 HTML-style headings will also not have a section edit link. Valid wikitext
 267 headings present in the template source text will get a template section edit
 268 link. This is a major break from previous behaviour, but I believe the effects
 269 are almost entirely beneficial.
 270
 271 The main motivation for making these changes was performance. The new two-pass
 272 preprocessor can skip "dead branches" in template expansion, such as unfollowed
 273 #switch cases and unused defaults for template arguments. This provides a
 274 significant performance improvement in template-heavy test cases taken from
 275 Wikipedia. Parser function hooks can participate in this performance improvement
 276 by using the new SFH_OBJECT_ARGS flag during registration.
 277
 278 The pre-expand include size limit has been removed, since there's no efficient
 279 way to calculate such a figure, and it would now be meaningless for performance
 280 anyway. The "preprocessor node count" takes its place, with a generous default
 281 limit.
 282
 283 The context in which XML-style extension tags are called has changed, so
 284 extensions which make use of the parser state may need compatibility changes.
 285
 286 === API changes in 1.12 ===
 287
 288 Full API documentation is available at http://www.mediawiki.org/wiki/API
 289
 290 * (bug 11275) Enable descending sort in categorymembers
 291 * (bug 11308) Allow the API to output the image metadata
 292 * (bug 11296) Temporary fix for escaping of ampersands inside links in
 293   pretty-printed
 294   help document.
 295 * (bug 11405) Expand templates implementation in the API
 296 * (bug 11218) Add option to feedwatchlist to display multiple revisions for each
 297   page.
 298 * (bug 11404) Provide name of exception caught in error code field of internal
 299   api error messages.
 300 * (bug 11534) rvendid doesn't work
 301 * Fixed rvlimit of the revisions query to only enforce the lower query limit if
 302   revision content is requested.
 303 * Include svn revision number (if install is checked-out from svn) in siteinfo
 304   query.
 305 * (bug 11173) Allow limited wikicode rendering via api.php
 306 * (bug 11572) API should provide interface for expanding templates
 307 * (bug 11569) Login should return the cookie prefix
 308 * (bug 11632) Breaking change: Specify the type of a change in the recentchanges
 309   list as 'edit', 'new', 'log' instead of 0, 1, 2, respectively.
 310 * Compatibility fix for PHP 5.0.x.
 311 * Add rctype parameter to list=recentchanges that filters by type
 312 * Add apprtype and apprlevel parameters to filter list=allpages by protection
 313   types and levels
 314 * Add apdir parameter to enable listing all pages from Z to A
 315 * (bug 11721) Use a different title for results than for the help page.
 316 * (bug 11562) Added a user_registration parameter/field to the list=allusers
 317   query.
 318 * (bug 11588) Preserve document structure for empty dataset in backlinks query.
 319 * Outputting list of all user preferences rather than having to request them by
 320   name
 321 * (bug 11206) api.php should honor maxlag
 322 * Make prop=info check for restrictions in the old format too.
 323 * Add apihighlimits permission, default for sysops and bots
 324 * Add limit=max to use maximal limit
 325 * Add action=parse to render parser output. Use it instead of action=render which is deprecated.
 326 * Add rvtoken=rollback to prop=revisions
 327 * Add meta=allmessages to get messages from site's messages cache.
 328 * Use bold and italics highlighting only in API help
 329 * Added action={block,changerights,delete,move,protect,rollback,unblock,undelete} and list={blocks,deletedrevs}
 330 * Fixed sessionid attribute in action=login
 331
 332 === Languages updated in 1.12 ===
 333
 334 * Afrikaans (af)
 335 * Akan (ak) (new)
 336 * Amharic (am) (new)
 337 * Aragonese (an)
 338 * Old English (ang) (new)
 339 * Arabic (ar)
 340 * Aramaic (arc)
 341 * Mapudungun (arn) (new)
 342 * Assamese (as)
 343 * Asturian (ast)
 344 * Aymara (ay)
 345 * Samogitian (bat-smg)
 346 * Boarisch (bar)
 347 * Bikol Central (bcl)
 348 * Belarusian Taraskievica orthography (be-tarask)
 349 * Bulgarian (bg)
 350 * Bislama (bi) (new)
 351 * Bamanankan (bm)
 352 * Bengali (bn)
 353 * Bishnupriya Manipuri (bpy)
 354 * Breton (br)
 355 * Buginese (bug) (new)
 356 * Catalan (ca)
 357 * Zamboangueño (cbk-zam) (new)
 358 * Min Dong (cdo) (new)
 359 * Chechen (ce)
 360 * Cebuano (ceb) (new)
 361 * Crimean Tatar (Cyrillic) (crh-cyrl) (new)
 362 * Crimean Tatar (Latin) (crh-latn) (new)
 363 * Czech (cs)
 364 * Cassubian (csb)
 365 * Old Church Slavonic (cu)
 366 * Welsh (cy)
 367 * Danish (da)
 368 * German (de)
 369 * Lower Sorbian (dsb) (new)
 370 * Middle Dutch (dum) (new)
 371 * Divehi (dv)
 372 * Ewe (ee) (new)
 373 * Greek (el)
 374 * English (en)
 375 * Spanish (es)
 376 * Estonian (et)
 377 * Euskara (eu)
 378 * Extremaduran (ext)
 379 * Finnish (fi)
 380 * Persian (fa)
 381 * Fulah (ff)
 382 * Võro (fiu-vro)
 383 * Faroese (fo)
 384 * French (fr)
 385 * Cajun French (frc)
 386 * Franco-Provençal (frp)
 387 * Frisian (fy)
 388 * Irish (ga)
 389 * Gön-gnŷ (gan) (new)
 390 * Galician (gl)
 391 * Gilaki (glk) (new)
 392 * Ancient Greek (grc) (new)
 393 * Swiss German (gsw)
 394 * Hakka (hak)
 395 * Hebrew (he)
 396 * Croatian (hr)
 397 * Upper Sorbian (hsb)
 398 * Hungarian (hu)
 399 * Armenian (hy)
 400 * Interlingua (ia)
 401 * Indonesian (id)
 402 * Interlingue (ie) (new)
 403 * Ingush (inh) (new)
 404 * Ido (io) (new)
 405 * Icelandic (is)
 406 * Italian (it)
 407 * Japanese (ja)
 408 * Georgian (ka)
 409 * Kara-Kalpak (kaa)
 410 * Kabyle (kab)
 411 * Kazakh (kk)
 412 * Kannada (kn)
 413 * Korean (ko)
 414 * Kölsch (ksh)
 415 * Kurdish (Latin) (ku-latn)
 416 * Cornish (kw) (new)
 417 * Latin (la)
 418 * Luxembourgish (lb) (new)
 419 * Lak (lbe) (new)
 420 * Limbugian (li)
 421 * Lozi (loz) (new)
 422 * Lingala (ln)
 423 * Lithuanian (lt)
 424 * Malayalam (ml)
 425 * Macedonian (mk)
 426 * Malay (ms)
 427 * Erzya (myv) (new)
 428 * Nahuatl (nah)
 429 * Min-nan (nan)
 430 * Napolitan (nap)
 431 * Low Saxon (nds)
 432 * Dutch Low Saxon (nds-nl)
 433 * Newari (new) (new)
 434 * Dutch (nl)
 435 * Norwegian (no)
 436 * Novial (nov) (new)
 437 * Occitan (oc)
 438 * Deitsch (pdc) (new)
 439 * Polish (pl)
 440 * Piemontèis (pms)
 441 * Pontic (pnt) (new)
 442 * Pashto (ps)
 443 * Portugese (pt)
 444 * Quechua (qu)
 445 * Rhaeto-Romance (rm) (new)
 446 * Romanian (ro)
 447 * Russian (ru)
 448 * Sakha (sah)
 449 * Sardinian (sc)
 450 * Sicilian (scn)
 451 * Scots (sco) (new)
 452 * Sindhi (sd)
 453 * Sassarese (sdc) (new)
 454 * Seri (sei) (new)
 455 * Tachelhit (shi)
 456 * Slovak (sk)
 457 * Serbian (Cyrillic) (sr-ec)
 458 * Swati (ss) (new)
 459 * Saterland Frisian (stq) (new)
 460 * Sundanese (su)
 461 * Swedish (sv)
 462 * Tamil (ta)
 463 * Teluga (te)
 464 * Tetun (tet) (new)
 465 * Tajik (tg)
 466 * Tagalog (tl) (new)
 467 * Turkish (tr)
 468 * Tuvinian (tyv)
 469 * Uyghur (ug)
 470 * Uzbek (uz)
 471 * Venitian (vec)
 472 * Vietnamese (vi)
 473 * West Flemish (vls)
 474 * Volapük (vo)
 475 * Walloon (wa)
 476 * Wolof (wo)
 477 * Wu (wuu) (new)
 478 * Yiddish (yi)
 479 * Cantonese (yue)
 480 * Zhuang (za)
 481 * Zealandic (zea)
 482 * Chinese (zh)
 483 * Old Chinese/Late Time Chinese (zh-classical)
 484 * Chinese (Simplified) (zh-hans)
 485 * Chinese (Traditional) (zh-hant)
 486 * Chinese (Taiwan) (zh-tw)
 487
 488 == Compatibility ==
 489
 490 MediaWiki 1.12 requires PHP 5 (5.1 recommended). PHP 4 is no longer supported.
 491
 492 PHP 5.0.x fails on 64-bit systems due to serious bugs with array processing:
 493 http://bugs.php.net/bug.php?id=34879
 494 Upgrade affected systems to PHP 5.1 or higher.
 495
 496 MySQL 3.23.x is no longer supported; some older hosts may need to upgrade.
 497 At this time we still recommend 4.0, but 4.1/5.0 will work fine in most cases.
 498
 499
 500 == Upgrading ==
 501
 502 1.12 has several database changes since 1.11, and will not work without schema
 503 updates.
 504
 505 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 506 new database fields are filled with data.
 507
 508 If you are upgrading from MediaWiki 1.4.x or earlier, some major database
 509 changes are made, and there is a slightly higher chance that things could
 510 break. Don't forget to always back up your database before upgrading!
 511
 512 See the file UPGRADE for more detailed upgrade instructions.
 513
 514
 515 === Caveats ===
 516
 517 Some output, particularly involving user-supplied inline HTML, may not
 518 produce 100% valid or well-formed XHTML output. Testers are welcome to
 519 set $wgMimeType = "application/xhtml+xml"; to test for remaining problem
 520 cases, but this is not recommended on live sites. (This must be set for
 521 MathML to display properly in Mozilla.)
 522
 523 For notes on 1.11.x and older releases, see HISTORY.
 524
 525
 526 === Online documentation ===
 527
 528 Documentation for both end-users and site administrators is currently being
 529 built up on MediaWiki.org, and is covered under the GNU Free Documentation
 530 License (except for pages that explicitly state that their contents are in
 531 the public domain) :
 532
 533   http://www.mediawiki.org/wiki/Documentation
 534
 535
 536 === Mailing list ===
 537
 538 A MediaWiki-l mailing list has been set up distinct from the Wikipedia
 539 wikitech-l list:
 540
 541   http://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 542
 543 A low-traffic announcements-only list is also available:
 544
 545   http://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 546
 547 It's highly recommended that you sign up for one of these lists if you're
 548 going to run a public MediaWiki, so you can be notified of security fixes.
 549
 550
 551 === IRC help ===
 552
 553 There's usually someone online in #mediawiki on irc.freenode.net