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  25 * MediaWiki now checks if serialized files are out of date.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 * The rollback permission is now assigned by default to all logged-in users. It
  29   can also now be rate-limited using the normal mechanism.
  30
  31 === New features in 1.12 ===
  32 * (bug 10735) Add a warning for non-descriptive filenames at Special:Upload
  33 * Add {{filepath:}} parser function to get full path to an uploaded file,
  34   complementing {{fullurl:}} for pages.
  35 * (bug 11136) If using Postgres, search path is explicitly set if wgDBmwschema
  36   is not set to 'mediawiki', allowing multiple mediawiki instances per user.
  37 * (bug 11151) Add descriptive <title> to revision history page
  38 * (bug 5412) Add feed links for the site to all pages
  39 * (bug 11353) Add ability to retrieve raw section content via action=raw
  40 * (bug 6909) Show relevant deletion log lines when uploading a previously
  41   deleted file
  42 * On SkinTemplate based skins (like MonoBook), omit confusing "edit"/"view
  43   source" tab entirely if the page doesn't exist and the user isn't allowed to
  44   create it
  45 * Clarify instructions given when an exception is thrown
  46 * AuthPlugin added strictUserAuth() method to allow per-user override
  47   of the strict() authentication behavior.
  48 * (bug 7872) Deleted revisions can now be viewed as diffs showing changes
  49   against the previous revision, whether currently deleted or live.
  50 * Added tooltips for the "Go" and "Search" buttons
  51 * (bug 11649) Show input form when Special:Whatlinkshere has no parameters
  52 * isValidEmailAddr hook added to User method of that name, to allow, e.g., re-
  53   stricting e-mail addresses to a specific domain
  54 * Removed "Clear" link in watchlist editor tools, as people were afraid to
  55   click it. Existing clear links will fall back to the raw editor, which is
  56   very easy to clear your watchlist with.
  57 * (bug 1405) Add wgUseNPPatrol option to control patroling for new articles
  58   on Special:Newpages
  59 * LogLine hook added to allow formatting custom entries in Special:Log.
  60 * Support for Iranian calendar
  61 * (bug 1401) Allow hiding logged-in users, bots and patrolled pages on
  62   Special:Newpages
  63 * ChangesListInsertArticleLink hook added for adding extra article info to RC.
  64 * MediaWikiPerformAction hook added for diverting control after the main
  65   globals have been set up but before any actions have been taken.
  66 * BeforeWatchlist hook added for filtering or replacing watchlist.
  67 * SkinTemplateTabAction hook added for altering the properties of tab links.
  68 * OutputPage::getRedirect public method added.
  69 * (bug 11848) Allow URL parameters 'editintro' and 'preload' in Special:Mypage
  70   and Special:Mytalk
  71 * Add ot=raw to Special:Allmessages
  72 * Support for Hebrew calendar
  73 * Support for Hebrew numerals in dates and times
  74 * (bug 11315) Signatures can be configured in [[MediaWiki:Signature]] and
  75   [[MediaWiki:Signature-anon]]
  76 * Signatures for anonymous users link to Special:Contributions page rather than
  77   user page
  78 * Added --override switch for disabled pages in updateSpecialPages.php
  79 * Provide a unique message (ipb_blocked_as_range) if unblock of a single IP
  80   fails
  81   because it is part of a blocked range.
  82 * (bug 3973) Use a separate message for the email content when an account is
  83   created by another user
  84 * dumpTextPass.php can spawn fetchText.php as a subprocess, which should restart
  85   cleanly if database connections fail unpleasantly.
  86 * (bug 12028) Add Special:Listbots as shortcut for Special:Listusers/bot
  87 * (bug 9633) Add a predefined list of delete reasons to the deletion form
  88 * Show a warning message when creating/editing a user (talk) page but the user
  89   does not exists
  90 * (bug 8396) Ignore out-of-date serialised message caches
  91 * (bug 12195) Undeleting pages now requires 'undelete' permission
  92 * (bug 11810) Localize displayed semicolons
  93 * New configuration variable $wgExtraLanguageNames
  94
  95 === Bug fixes in 1.12 ===
  96
  97 * Subpages are now indexed for searching properly when using PostgreSQL
  98 * (bug 3846) Suppress warnings from, e.g. open_basedir when scanning for
  99   ImageMagick, diff3 et al. during installation [patch by Jan Reininghaus]
 100 * (bug 7027) Shift handling of deletion permissions-checking to
 101   getUserPermissionsErrors.
 102 * Login and signup forms are now more correct for right-to-left languages.
 103 * (bug 5387) Block log items on RecentChanges don't make use of possible
 104   translations
 105 * (bug 11211) Pass, as a parameter to the protectedpagetext interface
 106   message, the level of protection.
 107 * (bug 9611) Supply the blocker and reason for the cantcreateaccounttext
 108   message.
 109 * (bug 8759) Fixed bug where rollback was allowed on protected pages for wikis
 110   where rollback is given to non-sysops.
 111 * (bug 8834) Split off permission for editing user JavaScript and CSS from
 112   editinterface to a new permission key editusercssjs.
 113 * (bug 11266) Set fallback language for Fulfulde (ff) to French
 114 * (bug 11179) Include image version deletion comment in public log
 115 * Fixed notice when accessing special page without read permission and whitelist
 116   is not defined
 117 * (bug 9252) Fix for tidy funkiness when using editintro mode
 118 * (bug 4021) Fix for MySQL wildcard search
 119 * (bug 10699) Fix for MySQL phrase search
 120 * (bug 11321) Fix width of gallerybox when option "width=xxx" is used
 121 * (bug 7890) Special:BrokenRedirects links deleted redirects to a non-existent
 122   page
 123 * Fix initial statistics when installing: add correct values
 124 * (bug 11342) Fix several 'returnto' links in permissions/error pages which
 125   linked to the main page instead of targetted page
 126 * Strike the link to the redirect rather than using an asterisk in
 127   Special:Listredirects
 128 * (bug 11355) Fix false positives in Safe Mode and other config detection
 129   when boolean settings are disabled with 'Off' via php_admin_value/php_value
 130 * (bug 11292) Fixed unserialize errors with Postgres by creating special Blob
 131   object.
 132 * (bug 11363) Make all metadata fields bytea when using Postgres.
 133 * (bug 11331) Add buildConcat() and use CASE not IF for DB compatibility. Make
 134   oldimage cascade delete via image table for Postgres, change fa_storage_key
 135   TEXT.
 136 * (bug 11438) Live Preview chops returned text
 137 * Show the right message on account creation when the user is blocked
 138 * (bug 11450) Fix creation of objectcache table on upgrade
 139 * Fix namespace selection after submit of Special:Newpages
 140 * Make input form of Special:Newpages nicer for RTL wikis
 141 * (bug 11462) Fix typo in LanguageGetSpecialPageAliases hook name
 142 * (bug 11474) Fix unintentional fall-through in math error handling
 143 * (bug 11478) Fix undefined method call in file deletion interface
 144 * (bug 278) Search results no longer highlight incorrect partial word matches
 145 * Compatibility with incorrectly detected old-style DJVU mime types
 146 * (bug 11560) Fix broken HTML output from weird link nesting in edit comments.
 147   Nested links (as in image caption text) still don't work _right_ but they're
 148   less wrong
 149 * (bug 9718) Remove unnecessary css from main.css causing spacing issues on
 150   some browsers.
 151 * (bug 11574) Add an interface message loginstart, which, similarly to loginend,
 152   appears just before the login form. Patch by MinuteElectron.
 153 * Do not cache category pages if using 'from' or 'until'
 154 * Created new hook getUserPermissionsErrors, to go with userCan changes.
 155 * Diff pages did not properly display css/js pages.
 156 * (bug 11620) Add call to User::isValidEmailAddr during accout creation.
 157 * (bug 11629) If $wgEmailConfirmToEdit is true, require people to supply an
 158   email address when registering.
 159 * (bug 11612) Days to show in recent changes cannot be larger than 7
 160 * (bug 11131) Change filearchive width/height columns to int for Postgres
 161 * Support plural in undeleted{revisions,revisions-files,files}
 162 * (bug 11343) If the database is read-only, ensure that undelete fails.
 163 * (bug 11690) Show revert link for page moves in Special:Log to allowed users
 164   only
 165 * Initial-lowercase prefix checks in namespaceDupes.php now actually work.
 166 * Fix regression in LinkBatch.php breaking PHP 5.0
 167 * (bug 11452) wfMsgExt uses sometimes wrong language object for parsing magic
 168   words when called with options ''parsemag'' or ''content''.
 169 * (bug 11727) Support plural in 'historysize' message
 170 * (bug 11744) Incorrect return value from Title::getParentCategories()
 171 * (bug 11762) Fix native language name of Akan (ak)
 172 * (bug 11722) Fix inconsistent case in unprotect tabs
 173 * (bug 11795) Be more paranoid about confirming accept-encoding header is
 174   present
 175 * (bug 11809) Use formatNum() for more numbers
 176 * (bug 11818) Fix native language name of Inuktitut (iu)
 177 * Remove all commas when parsing float numbers in sorted tables
 178 * Limit text field of deletion, protection and user rights changes reasons to
 179   255 characters (already restricted in the database)
 180 * In the deletion default reasons, calculate how much text to get from the
 181   article text, rather than getting 150 characters (which may be too much)
 182 * Add two messages for Special:Blockme which were used but undefined
 183 * (bug 11921) Support plural in message number_of_watching_users_pageview
 184 * If an IP address is blocked as part of a rangeblock, attempting to unblock
 185   the single IP should not unblock the entire range.
 186 * (bug 6695) Fix native language name of Southern Sotho (Sesotho) (st)
 187 * Make action=render follow redirects by default
 188 * If restricted read access was enabled, whitelist didn't work with special
 189   pages which had spaces in theirs names
 190 * If restricted read access was enabled, requests for non-existing special pages
 191   threw an exception
 192 * Feeds for recent changes now provide correct URLs for the change, not just
 193   the page
 194 * Check for if IP is blocked as part of a range when unblocking (see above bug-
 195   fix) was faulty. Now fixed.
 196 * Fixed wpReason URL parameter to action=delete.
 197 * Do not force a password for account creation by email
 198 * Ensure that rate-limiting is applied to rollbacks.
 199 * Make a better rate-limiting error message (i.e. a normal MW error,
 200   rather than an "Internal Server Error").
 201 * Do not present an image bigger than the source when 'frameless' option is used
 202   (to be consistent with the 'thumb' option now)
 203 * Support {{PLURAL}} for import log
 204 * Make sure that the correct log entries are shown on Special:Userrights even
 205   for users with special characters in their names
 206 * The number of watching users in watchlists was always reported as 1
 207 * namespaceDupes.php no longer dies when coming across an illegal title
 208 * (bug 12143) Do not show a link to patrol new pages for non existent pages
 209 * (bug 12166) Fix XHTML validity for Special:Emailuser
 210 * (bug 11346) Users who cannot edit a page can now no longer unprotect it.
 211 * (bug 451) Add a generic Traditional / Simplified Chinese conversion table,
 212   instead of a Traditional conversion with Taiwan variant, and a Simplified
 213   conversion with China variant.
 214 * (bug 12178) Fix wpReason parameter to action=delete, again.
 215 * Graceful behavior for updateRestrictions.php if a page already has records
 216   in the page_restrictions matching its old page_restrictions field.
 217   May help with odd upgrade issues or race condition.
 218 * (bug 11993) Remove contentsub "revision history"
 219 * (bug 11952) Ensure we quote_ident() all schema names as needed
 220    inside of the DatabasePostgres.php file.
 221
 222 == Parser changes in 1.12 ==
 223
 224 The parser pass order has changed from
 225
 226    * Extension tag strip and render
 227    * HTML normalisation and security
 228    * Template expansion
 229    * Main section...
 230
 231 to
 232
 233    * Template and extension tag parse to intermediate representation
 234    * Template expansion and extension rendering
 235    * HTML normalisation and security
 236    * Main section...
 237
 238 The main effect of this for the user is that the rules for uncovered syntax
 239 have changed.
 240
 241 Uncovered main-pass syntax, such as HTML tags, are now generally valid, whereas
 242 previously in some cases they were escaped. For example, you could have "<ta" in
 243 one template, and "ble>" in another template, and put them together to make a
 244 valid <table> tag. Previously the result would have been "&lt;table&gt;".
 245
 246 Uncovered preprocessor syntax is generally not recognised. For example, if you
 247 have "{{a" in Template:A and "b}}" in Template:B, then "{{a}}{{b}}" will be
 248 converted to a literal "{{ab}}" rather than the contents of Template:Ab. This
 249 was the case previously in HTML output mode, and is now uniformly the case in
 250 the other modes as well. HTML-style comments uncovered by template expansion
 251 will not be recognised by the preprocessor and hence will not prevent template
 252 expansion within them, but they will be stripped by the following HTML security
 253 pass.
 254
 255 The rules for template expansion during message transformation were
 256 counterintuitive, mostly accidental and buggy. There are a few small changes in
 257 this version: for example, templates with dynamic names, as in "{{ {{a}} }}",
 258 are fully expanded as they are in HTML mode, whereas previously only the inner
 259 template was expanded. I'd like to make some larger breaking changes to message
 260 transformation, after a review of typical use cases.
 261
 262 The header identification routines for section edit and for numbering section
 263 edit links have been merged. This removes a significant failure mode and fixes a
 264 whole category of bugs (tracked by bug #4899). Wikitext headings uncovered by
 265 template expansion or comment removal will still be rendered into a heading tag,
 266 and will get an entry in the TOC, but will not have a section edit link.
 267 HTML-style headings will also not have a section edit link. Valid wikitext
 268 headings present in the template source text will get a template section edit
 269 link. This is a major break from previous behaviour, but I believe the effects
 270 are almost entirely beneficial.
 271
 272 The main motivation for making these changes was performance. The new two-pass
 273 preprocessor can skip "dead branches" in template expansion, such as unfollowed
 274 #switch cases and unused defaults for template arguments. This provides a
 275 significant performance improvement in template-heavy test cases taken from
 276 Wikipedia. Parser function hooks can participate in this performance improvement
 277 by using the new SFH_OBJECT_ARGS flag during registration.
 278
 279 The pre-expand include size limit has been removed, since there's no efficient
 280 way to calculate such a figure, and it would now be meaningless for performance
 281 anyway. The "preprocessor node count" takes its place, with a generous default
 282 limit.
 283
 284 The context in which XML-style extension tags are called has changed, so
 285 extensions which make use of the parser state may need compatibility changes.
 286
 287 === API changes in 1.12 ===
 288
 289 Full API documentation is available at http://www.mediawiki.org/wiki/API
 290
 291 * (bug 11275) Enable descending sort in categorymembers
 292 * (bug 11308) Allow the API to output the image metadata
 293 * (bug 11296) Temporary fix for escaping of ampersands inside links in
 294   pretty-printed
 295   help document.
 296 * (bug 11405) Expand templates implementation in the API
 297 * (bug 11218) Add option to feedwatchlist to display multiple revisions for each
 298   page.
 299 * (bug 11404) Provide name of exception caught in error code field of internal
 300   api error messages.
 301 * (bug 11534) rvendid doesn't work
 302 * Fixed rvlimit of the revisions query to only enforce the lower query limit if
 303   revision content is requested.
 304 * Include svn revision number (if install is checked-out from svn) in siteinfo
 305   query.
 306 * (bug 11173) Allow limited wikicode rendering via api.php
 307 * (bug 11572) API should provide interface for expanding templates
 308 * (bug 11569) Login should return the cookie prefix
 309 * (bug 11632) Breaking change: Specify the type of a change in the recentchanges
 310   list as 'edit', 'new', 'log' instead of 0, 1, 2, respectively.
 311 * Compatibility fix for PHP 5.0.x.
 312 * Add rctype parameter to list=recentchanges that filters by type
 313 * Add apprtype and apprlevel parameters to filter list=allpages by protection
 314   types and levels
 315 * Add apdir parameter to enable listing all pages from Z to A
 316 * (bug 11721) Use a different title for results than for the help page.
 317 * (bug 11562) Added a user_registration parameter/field to the list=allusers
 318   query.
 319 * (bug 11588) Preserve document structure for empty dataset in backlinks query.
 320 * Outputting list of all user preferences rather than having to request them by
 321   name
 322 * (bug 11206) api.php should honor maxlag
 323 * Make prop=info check for restrictions in the old format too.
 324 * Add apihighlimits permission, default for sysops and bots
 325 * Add limit=max to use maximal limit
 326 * Add action=parse to render parser output. Use it instead of action=render which is deprecated.
 327 * Add rvtoken=rollback to prop=revisions
 328 * Add meta=allmessages to get messages from site's messages cache.
 329 * Use bold and italics highlighting only in API help
 330 * Added action={block,changerights,delete,move,protect,rollback,unblock,undelete} and list={blocks,deletedrevs}
 331 * Fixed sessionid attribute in action=login
 332 * Standardized limits. Revisions and Deletedrevisions formerly using 200 / 10000,
 333   now 500 / 5000, in line with other modules.
 334
 335 === Languages updated in 1.12 ===
 336
 337 * Afrikaans (af)
 338 * Akan (ak) (new)
 339 * Amharic (am) (new)
 340 * Aragonese (an)
 341 * Old English (ang) (new)
 342 * Arabic (ar)
 343 * Aramaic (arc)
 344 * Mapudungun (arn) (new)
 345 * Assamese (as)
 346 * Asturian (ast)
 347 * Aymara (ay)
 348 * Samogitian (bat-smg)
 349 * Boarisch (bar)
 350 * Bikol Central (bcl)
 351 * Belarusian Taraskievica orthography (be-tarask)
 352 * Bulgarian (bg)
 353 * Bislama (bi) (new)
 354 * Bamanankan (bm)
 355 * Bengali (bn)
 356 * Bishnupriya Manipuri (bpy)
 357 * Breton (br)
 358 * Buginese (bug) (new)
 359 * Catalan (ca)
 360 * Zamboangueño (cbk-zam) (new)
 361 * Min Dong (cdo) (new)
 362 * Chechen (ce)
 363 * Cebuano (ceb) (new)
 364 * Crimean Tatar (Cyrillic) (crh-cyrl) (new)
 365 * Crimean Tatar (Latin) (crh-latn) (new)
 366 * Czech (cs)
 367 * Cassubian (csb)
 368 * Old Church Slavonic (cu)
 369 * Welsh (cy)
 370 * Danish (da)
 371 * German (de)
 372 * Lower Sorbian (dsb) (new)
 373 * Middle Dutch (dum) (new)
 374 * Divehi (dv)
 375 * Ewe (ee) (new)
 376 * Greek (el)
 377 * English (en)
 378 * Spanish (es)
 379 * Estonian (et)
 380 * Euskara (eu)
 381 * Extremaduran (ext)
 382 * Finnish (fi)
 383 * Persian (fa)
 384 * Fulah (ff)
 385 * Võro (fiu-vro)
 386 * Faroese (fo)
 387 * French (fr)
 388 * Cajun French (frc)
 389 * Franco-Provençal (frp)
 390 * Frisian (fy)
 391 * Irish (ga)
 392 * Gön-gnŷ (gan) (new)
 393 * Galician (gl)
 394 * Gilaki (glk) (new)
 395 * Ancient Greek (grc) (new)
 396 * Swiss German (gsw)
 397 * Hakka (hak)
 398 * Hebrew (he)
 399 * Croatian (hr)
 400 * Upper Sorbian (hsb)
 401 * Hungarian (hu)
 402 * Armenian (hy)
 403 * Interlingua (ia)
 404 * Indonesian (id)
 405 * Interlingue (ie) (new)
 406 * Ingush (inh) (new)
 407 * Ido (io) (new)
 408 * Icelandic (is)
 409 * Italian (it)
 410 * Japanese (ja)
 411 * Georgian (ka)
 412 * Kara-Kalpak (kaa)
 413 * Kabyle (kab)
 414 * Kazakh (kk)
 415 * Kannada (kn)
 416 * Korean (ko)
 417 * Kölsch (ksh)
 418 * Kurdish (Latin) (ku-latn)
 419 * Cornish (kw) (new)
 420 * Latin (la)
 421 * Luxembourgish (lb) (new)
 422 * Lak (lbe) (new)
 423 * Limbugian (li)
 424 * Lozi (loz) (new)
 425 * Lingala (ln)
 426 * Lithuanian (lt)
 427 * Malayalam (ml)
 428 * Macedonian (mk)
 429 * Malay (ms)
 430 * Erzya (myv) (new)
 431 * Nahuatl (nah)
 432 * Min-nan (nan)
 433 * Napolitan (nap)
 434 * Low Saxon (nds)
 435 * Dutch Low Saxon (nds-nl)
 436 * Newari (new) (new)
 437 * Dutch (nl)
 438 * Norwegian (no)
 439 * Novial (nov) (new)
 440 * Occitan (oc)
 441 * Deitsch (pdc) (new)
 442 * Polish (pl)
 443 * Piemontèis (pms)
 444 * Pontic (pnt) (new)
 445 * Pashto (ps)
 446 * Portugese (pt)
 447 * Quechua (qu)
 448 * Rhaeto-Romance (rm) (new)
 449 * Romanian (ro)
 450 * Russian (ru)
 451 * Sakha (sah)
 452 * Sardinian (sc)
 453 * Sicilian (scn)
 454 * Scots (sco) (new)
 455 * Sindhi (sd)
 456 * Sassarese (sdc) (new)
 457 * Seri (sei) (new)
 458 * Tachelhit (shi)
 459 * Slovak (sk)
 460 * Serbian (Cyrillic) (sr-ec)
 461 * Swati (ss) (new)
 462 * Saterland Frisian (stq) (new)
 463 * Sundanese (su)
 464 * Swedish (sv)
 465 * Tamil (ta)
 466 * Teluga (te)
 467 * Tetun (tet) (new)
 468 * Tajik (tg)
 469 * Tagalog (tl) (new)
 470 * Turkish (tr)
 471 * Tuvinian (tyv)
 472 * Uyghur (ug)
 473 * Uzbek (uz)
 474 * Venitian (vec)
 475 * Vietnamese (vi)
 476 * West Flemish (vls)
 477 * Volapük (vo)
 478 * Walloon (wa)
 479 * Wolof (wo)
 480 * Wu (wuu) (new)
 481 * Yiddish (yi)
 482 * Cantonese (yue)
 483 * Zhuang (za)
 484 * Zealandic (zea)
 485 * Chinese (zh)
 486 * Old Chinese/Late Time Chinese (zh-classical)
 487 * Chinese (Simplified) (zh-hans)
 488 * Chinese (Traditional) (zh-hant)
 489 * Chinese (Taiwan) (zh-tw)
 490
 491 == Compatibility ==
 492
 493 MediaWiki 1.12 requires PHP 5 (5.1 recommended). PHP 4 is no longer supported.
 494
 495 PHP 5.0.x fails on 64-bit systems due to serious bugs with array processing:
 496 http://bugs.php.net/bug.php?id=34879
 497 Upgrade affected systems to PHP 5.1 or higher.
 498
 499 MySQL 3.23.x is no longer supported; some older hosts may need to upgrade.
 500 At this time we still recommend 4.0, but 4.1/5.0 will work fine in most cases.
 501
 502
 503 == Upgrading ==
 504
 505 1.12 has several database changes since 1.11, and will not work without schema
 506 updates.
 507
 508 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 509 new database fields are filled with data.
 510
 511 If you are upgrading from MediaWiki 1.4.x or earlier, some major database
 512 changes are made, and there is a slightly higher chance that things could
 513 break. Don't forget to always back up your database before upgrading!
 514
 515 See the file UPGRADE for more detailed upgrade instructions.
 516
 517
 518 === Caveats ===
 519
 520 Some output, particularly involving user-supplied inline HTML, may not
 521 produce 100% valid or well-formed XHTML output. Testers are welcome to
 522 set $wgMimeType = "application/xhtml+xml"; to test for remaining problem
 523 cases, but this is not recommended on live sites. (This must be set for
 524 MathML to display properly in Mozilla.)
 525
 526 For notes on 1.11.x and older releases, see HISTORY.
 527
 528
 529 === Online documentation ===
 530
 531 Documentation for both end-users and site administrators is currently being
 532 built up on MediaWiki.org, and is covered under the GNU Free Documentation
 533 License (except for pages that explicitly state that their contents are in
 534 the public domain) :
 535
 536   http://www.mediawiki.org/wiki/Documentation
 537
 538
 539 === Mailing list ===
 540
 541 A MediaWiki-l mailing list has been set up distinct from the Wikipedia
 542 wikitech-l list:
 543
 544   http://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 545
 546 A low-traffic announcements-only list is also available:
 547
 548   http://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 549
 550 It's highly recommended that you sign up for one of these lists if you're
 551 going to run a public MediaWiki, so you can be notified of security fixes.
 552
 553
 554 === IRC help ===
 555
 556 There's usually someone online in #mediawiki on irc.freenode.net