1 This document is a part of the TYPO3 project. TYPO3 is an open source web
2 content management system released under the GNU GPL. TYPO3 is copyright
3 (c) 1999-2011 by Kasper Skaarhoj.
5 This document contains information about TYPO3 version 4.6 which was released
8 An up-to-date version of this document also containing links to further in
9 depth information can be found here:
11 http://wiki.typo3.org/TYPO3_4.6
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19 This version requires at least PHP 5.3, older versions of PHP are not supported
20 anymore with TYPO3 4.6.
22 * ImageMagick/GraphicsMagick
26 * PHP __constructor() methods
28 The old PHP 4 style class constructors, which have been the same as the class
29 name have been changed to use the PHP 5 __constructor() syntax. This is
30 considered as breaking change if extension called the old contructor of an
33 ===============================================================================
34 Changes and improvements
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37 This will list all changes and improvements between TYPO3 4.5 and 4.6. For
38 technical details see ChangeLog included in the typo3_src package.
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49 * Static Published Pages
51 The feature to statically publish a page from the Admin Panel has been dropped.
52 There are better ways to achieve such a functionality, like e.g.
53 EXT:nc_staticfilecache.
55 * Removed extCache=2 option
57 The cache files in typo3conf/temp_CACHED_* were by default set to a hash that
58 was based on the extensionlist, but this is quite unnecessary, so the extCache
59 option was removed to be only used once in the typo3conf/ directory in order
60 to prevent hundreds of temp_CACHED_* files that don't get cleaned up
61 automatically. From now on the option $TYPO3_CONF_VARS['EXT']['extCache'] can
62 only be set to 0 or 1.
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70 Other general improvements
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73 * New scheduler task to delete old data from tables
75 The scheduler task 'Table garbage collection' can be used to delete old data
76 from growing tables like log tables on a regular basis. Additional tables that
77 can be cleaned up must be registered in $TYPO3_CONF_VARS['SC_OPTIONS']
78 ['scheduler']['tasks']['tx_scheduler_TableGarbageCollection']['options']
79 ['tables'] with its table name and a field. After that they can
80 be selected in the scheduler task.
83 * New scheduler task to delete old files from fileadmin trash directories
85 The scheduler task 'Fileadmin recycler garbage collection' can be used to
86 definitely delete old files from _recycler_ directories. When a _recycler_
87 directory exists within the path of a file to delete via the File module, the
88 file is not actually deleted, but stored in the _recycler_ folder.
89 This new task now deletes all files insider _recycler_ folders that have been
90 moved there for longer than a given number of days.
92 * New option to customize the cookie names used by TYPO3
94 It is now possible to customize the cookie names used by TYPO3 to avoid clashes
95 when running more installations on the same domain. The names used can be con-
97 $TYPO3_CONF_VARS['FE']['cookieName'] and
98 $TYPO3_CONF_VARS['BE']['cookieName'].
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110 Other improvements to the Backend
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113 * Backend speedup with merged JavaScript files
115 All jsLibs, jsFiles and jsFooterFiles are now concatenated by default into
116 single files depending on type and section (header / footer). This reduces
117 the webserver requests approximately by one third.
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125 Other Improvements in the Skin / Backend UI
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131 Administration / Customization
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150 Although we do our best to make adjustments in a backwards-compatible manner,
151 we needed to break backwards compatibility at a few places. In order to see if
152 you are affected and how the issues can be solved, please read our notes on
155 http://forge.typo3.org/projects/typo3v4-mvc/wiki/Breaking_Changes
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162 Extension Development
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167 TypoScript / Frontend
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170 * Compression and concatenation of CSS and JavaScript files
172 New builtin minifcation routines can now be used with config.minifyCSS and
173 minifyJS to reduce the file size of all files configured in page.includeCSS
174 and includeJS. Single files can be excluded from compression using the new
175 option disableCompression. Additionally, files can be concatenated into a
176 single file using config.concatenateCss and concatenateJs. Please note that
177 there is only limited support for @charset, @import and @namespace statements
178 in concatenated CSS files. Furthermore, if minifyCSS/JS is enabled,
179 $TYPO3_CONF_VARS[FE][compressionLevel] now also affects CSS and JS files in
180 frontend and applies GZIP compression. This requires the same options as for
181 [BE][compressionLevel] to be set in .htaccess.
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200 * Switch to caching framework
202 The caching framework is enabled by default and the old database-only driven
203 caching is removed. This opens a lot of options for administrators to optimize
204 cache deployment and performance. Details about configuration options and usage
205 in own extensions can be found at http://wiki.typo3.org/Caching_framework.
208 * Caching framework: db backend uses own table namespace
210 The database backend must not define own tables and table definitions anymore.
211 Cache tables and table layout of the database backend will created by the
212 caching framework when needed.