* (bug 1109) Correct fix for compressed 304 responses when additional output

[lhc/web/wiklou.git] / RELEASE-NOTES

= MediaWiki release notes =

Security reminder: MediaWiki does not require PHP's register_globals
setting since version 1.2.0. If you have it on, turn it *off* if you can.

== MediaWiki 1.9 ==

THIS IS NOT A RELEASE YET.

MediaWiki is now using a "continuous integration" development model with
quarterly snapshot releases. The latest development code is always kept
"ready to run", and in fact runs our own sites on Wikipedia.

Release branches will continue to receive security updates for about a year
from first release, but nonessential bugfixes and feature development happen
will be made on the development trunk and appear in the next quarterly release.

Those wishing to use the latest code instead of a branch release can obtain
it from source control: http://www.mediawiki.org/wiki/Download_from_SVN

== Configuration changes ==


== Major new features ==


== Changes since 1.8 ==

* (bug 6835) Removing the includes/Parser.php::getTemplateArgs() function, 
  because it seems to be unused.
* (bug 7139) Increasing the visual width of the edit summary field on larger
  screen sizes, for the default monobook skin.
* Fix PHP notice and estimates for dumpBackup.php and friends
* Improved register_globals paranoia checks
* (bug 7545) Fix PHP version check on install
* Disable PHP exception backtrace printing unless $wgShowExceptionDetails
  is set. Backtraces may contain sensitive information in function call
  parameters.
* (bug 6164) Avoid smashing Cite state if message transformation triggers
  during bad image list check, by skipping message transformation.
  This isn't a good permanent fix.
* (bug 6918) Stopped borders and backgrounds from showing through floated
  tables in Monobook
* (bug 6868) Un-hardcode section edit link style
* (bug 3205) Stop right floats from stacking horizontally in non-Monobook skins
* Added global $wgStyleVersion to centralize bumping CSS and JS file versions
  for cache-friendly style and script updating
* (bug 7562) Fix non-ASCII namespaces on Windows/XAMPP servers
* Friendlier check for PHP 5 in command-line scripts; it's common for parallel
  PHP 4 and 5 installations to interfere on the command-line.
* Fix regression in autoconfirm permission check
* (bug 3015) Add CSS ids to subcategory and page sections on category pages
* (bug 7587) Fix erroneous id for specialpage tab, enabling informative popup
* (bug 7599) Fix thumbnail purging, PHP notices on HTCP image page purge
* (bug 7581) Update language name for cbk-zam
* (bug 7444) Update namespace translations for Telugu (te), kept old values as
  alias for compatibility
* (bug 4525) Move section links down visually to same level as headings
  (editsection links are now inside the heading elements)
* Workaround for http://bugs.php.net/bug.php?id=31892 , PATH_INFO and hence 
  URLs of the style /index.php/Main_Page were broken on some CGI installations.
* (bug 7623) Validate custom HTML id's correctly in Monobook interface
* (bug 2241) Fix collision of 'w' and 'd' accesskeys
* (bug 5795) CSS class added to body based on page name for page-specific
  styling
* (bug 6276) Stopped search field from getting too large in Cologne Blue
* (bug 7644) User creations that are aborted by hooks shouldn't be counted
  against account creations per day limit
* (bug 7636) Show Firefox 2 users correct accesskey prefix
* (bug 6427) Block blocked IPs from using the mail password function
  to allow blocking of flooders
* Include common.css from classic-style skins in main HTML with the bump URL
  FIXME: this may leave doubled rules which won't stand up to certain changes.
  Will want to adjust these more to eliminate the dupe @includes.
* (bug 7607) Add Karakalpak (kaa) to Names.php and stub message file for linktrail
* (bug 7582) Add 'tog-nolangconversion' to MessagesEn.php.
  This key is need for languages with variants (zh, sr, kk)
* (bug 7606) MediaWiki messages for "rss" and "atom" missing
* (bug 7609) Add some more '*-summary' messages to MessagesEn.php with empty
  strings to allow better localisation via Special:Allmessages. Mark this new
  messages as optional for localisation.
* Fix user_newpass upgrade for prefixed tables (reported by Fyren)
* (bug 7663) Include language variant switcher links on Nostalgia skin
* (bug 6531) Fix PHP fatal error on installation page with bad username input.
* (bug 6977) Remove 404 link for autogenerated database documentation.
* (bug 7369) Allow "Show Changes" without requiring edit token.
* (bug 7687) Fix movetalk box checks itself when confirming a delete and move.
* (bug 7684) Obey watchcreated preference for Special:Upload watch checkbox
* (bug 7686) Include id attribute on delete form confirmation button
* Allow compound interwiki prefixes in $wgImportSources
* (bug 7304) Added redirect table to store redirect targets.
* Added querycachetwo table (similar to querycache but has two titles)
* PageArchive can now return a Revision object for more convenient processing
  of deleted revision data
* Added 'UndeleteShowRevision' hook in Special:Undelete
* Error message on attempt to view invalid or missing deleted revisions
* Remove unsightly "_" from namespace in Special:Allpages, Special:Prefixindex
* (bug 3224) Allow minor edits by bots to skip new message notification on
  user talk pages. This can be disabled by adjusting the 'nominornewtalk'
  permission. Patch by Werdna.
* (bug 7741) MATH: fixed broken syntax of underbrace etc. Fixed arrays
* Fix purging for updated SVG files
* (bug 7745) Add id attribute to search button in Monobook
* (bug 7749) MATH: added some more LaTeX symbols, e.g. parallel, diamond, ast, ...
* (bug 7304) Added code in Article.php to keep redirect table up to date.
* Made special page names case-insensitive and localisable. Care has been taken 
  to maintain backwards compatibility.
* Used special page subpages in a few more places, instead of query parameters.
* (bug 7758) Added wrapper span to "templates used" explanation to allow CSS
  styling (class="mw-templatesUsedExplanation").
* Added {{#special:}} parser function, to give the local default title for 
  special pages
* (bug 7766) Remove redundant / from AJAX requests, can break some servers
* Add tab links from extensions to classic-based skins (SkinTemplateTab hook)
  Provides better cross-skin compatibility for extensions using the modern
  skin hooks, such as Oversight
* Moved variant language links on Cologne Blue and Nostalgia to before the
  login/logout link
* Fix for parser tests with MySQL 5 in strict mode
* Added block option "enable autoblocks"
* Amend Special:Ipblocklist to note when a block has autoblock DISABLED.
* (bug 7780) Fix regression in editing redirects
* Add whitespace above "templates included on this page" using CSS, not
  hardcoded line break.
* Remove entries from redirect table on article deletion
* (bug 7788) Force section headers in new section links for users who have
  'prompt for blank edit summaries' on.
* (bug 1133) Special:Emailuser: add an option to send yourself a copy your mail.
* (bug 461) Allow "Categories:" link at bottom of pages to be customized via
  pagecategorieslink message.
* Sort the list of skins in "My Preferences" -> Skins by alphabetical order.
* (bug 7785) Postgres compatibility for timestamps in RC feeds
* (bug 7550) Normalize user parameter normally on Special:Log
* (bug 7294) Fix PATH search for diff3 on install
* Various fixes related to the blocking change re: autoblocks. On inserting
  an IP block, the ipb_enable_autoblock field is now automagically blanked,
  because it doesn't make any sense for an IP. Additionally, IP blocks
  without the ipb_enable_autoblock option no longer show up as "autoblock
  disabled" on Special:Ipblocklist.
* (bug 7774) MATH: aded more amstex functions
* (bug 1182) MATH: fixed inconsistent rendering of upper case Greek letters in TeX
* Fix regression in streaming page dump generation
* (bug 7801) Add support for parser function hooks in parser tests
* checkUsernames.php now uses wfDebugLog instead of hardcoded path to log
* (bug 7810) Update talk namespaces for Occitan
* Allow case-sensitive URLs to be used for uploading from URLs.
* (bug 1109) Correct fix for compressed 304 responses when additional output
  buffers have been installed within the compression handler


== Languages updated ==

* Bishnupriya Manipuri (bpy)
* German (de)
* Hebrew (he)
* Indonesian (id)
* Italian (it)
* Latin (la)
* Lithuanian (lt)
* Occitan (oc)
* Polish (pl)
* Portuguese (pt)
* Russian (ru)
* Upper Sorbian (hsb)

== Compatibility ==

MediaWiki 1.9 requires PHP 5 (5.1 recommended). PHP 4 is no longer supported.

MySQL 3.23.x is no longer supported; some older hosts may need to upgrade.
At this time we still recommend 4.0, but 4.1/5.0 will work fine in most cases.


== Upgrading ==

Some minor database changes have been made since 1.7:
* new fields and indexes on ipblocks
* index change on recentchanges

Several changes from 1.5 and 1.6 do require updates to be run on upgrade.
To ensure that these tables are filled with data, run refreshLinks.php after
the upgrade.

If you are upgrading from MediaWiki 1.4.x or earlier, some major database
changes are made, and there is a slightly higher chance that things could
break. Don't forget to always back up your database before upgrading!

See the file UPGRADE for more detailed upgrade instructions.



=== Caveats ===

Some output, particularly involving user-supplied inline HTML, may not
produce 100% valid or well-formed XHTML output. Testers are welcome to
set $wgMimeType = "application/xhtml+xml"; to test for remaining problem
cases, but this is not recommended on live sites. (This must be set for
MathML to display properly in Mozilla.)


For notes on 1.5.x and older releases, see HISTORY.


=== Online documentation ===

Documentation for both end-users and site administrators is currently being
built up on Meta-Wikipedia, and is covered under the GNU Free Documentation
License:

  http://www.mediawiki.org/wiki/Documentation


=== Mailing list ===

A MediaWiki-l mailing list has been set up distinct from the Wikipedia
wikitech-l list:

  http://mail.wikimedia.org/mailman/listinfo/mediawiki-l

A low-traffic announcements-only list is also available:

  http://mail.wikimedia.org/mailman/listinfo/mediawiki-announce

It's highly recommended that you sign up for one of these lists if you're
going to run a public MediaWiki, so you can be notified of security fixes.


=== IRC help ===

There's usually someone online in #mediawiki on irc.freenode.net