TYPO3-Documentation · linawolf · Dec 31, 2025 · Dec 31, 2025 · Jan 3, 2026 · brotkrueml
diff --git a/Documentation/Administration/DirectoryStructure/Index.rst b/Documentation/Administration/DirectoryStructure/Index.rst
@@ -265,9 +265,9 @@ for temporary files of extensions and TYPO3 components.
 :path:`public/typo3temp/assets/`
 """"""""""""""""""""""""""""""""
 
-The directory :path:`typo3temp/assets/` contains temporary files that should be
-public available. This includes generated images and compressed CSS and
-JavaScript files.
+The directory :path:`typo3temp/assets/` contains temporary files that must be
+publicly accessible. This includes generated images and other temporary
+frontend assets created by the TYPO3 Core.
 
 ..  _directory-var:
 

diff --git a/Documentation/Administration/Installation/SystemRequirements/Index.rst b/Documentation/Administration/Installation/SystemRequirements/Index.rst
@@ -77,7 +77,6 @@ Optional but commonly used:
 *   `fileinfo` – for detecting uploaded file types
 *   `gd` – for image generation and scaling
 *   `zip` – for language packs and extension archives
-*   `zlib` – for output compression
 *   `openssl` – for encrypted SMTP mail delivery
 
 ..  _system-requirements-php-database-extensions:

diff --git a/Documentation/ApiOverview/Assets/Index.rst b/Documentation/ApiOverview/Assets/Index.rst
@@ -20,9 +20,14 @@ Introduction
 The TYPO3 component responsible for rendering the HTML and adding assets to a
 TYPO3 frontend or backend page is called :php:`\TYPO3\CMS\Core\Page\PageRenderer`.
 
-The :php:`PageRenderer` collects all assets to be rendered, takes care of
-options such as concatenation or compression and finally generates the necessary
-tags.
+The :php-short:`\TYPO3\CMS\Core\Page\PageRenderer` collects all assets to
+be rendered and finally generates the necessary tags.
+
+..  versionchanged:: 14.0
+
+    TYPO3 no longer supports frontend asset concatenation or
+    pre-compression in the Core. The :php:`PageRenderer` therefore does not
+    concatenate or pre-compress CSS and JavaScript files in TYPO3 v14.
 
 There are multiple ways to add assets to the :php:`PageRenderer` in TYPO3.
 For configuration options via TypoScript (usually used for the main theme files),

diff --git a/Documentation/ApiOverview/Debugging/Index.rst b/Documentation/ApiOverview/Debugging/Index.rst
@@ -44,10 +44,6 @@ If :doc:`EXT:lowlevel <ext_lowlevel:Index>` is installed, the name of the
 database table or field is appended to the select options in the
 :guilabel:`System > Database > Full Search` module.
 
-Additionally, in debug mode, the page renderer does not compress or concatenate
-JavaScript or CSS resources.
-
-
 .. _examples-debug-utility:
 
 

diff --git a/Documentation/Configuration/Typo3ConfVars/FE.rst b/Documentation/Configuration/Typo3ConfVars/FE.rst
@@ -64,18 +64,12 @@ the TYPO3 frontend:
     :Default: 0
     :Range: 0-9
 
-    Defines the compression level used for **frontend resource pre-compression**
-    (JavaScript and CSS files) when combined with the TypoScript settings
-    `config.compressJs  <https://docs.typo3.org/permalink/t3tsref:confval-config-compressjs>`_
-    and `compressCss  <https://docs.typo3.org/permalink/t3tsref:confval-config-compresscss>`_.
-
     ..  versionchanged:: 14.0
 
         Frontend HTTP response compression has been removed. Response compression
         should be applied by web servers and not by the application layer.
 
-        See also: `Breaking: #107943 - Frontend and backend HTTP response
-        compression removed <https://docs.typo3.org/permalink/changelog:breaking-107943-1761860828>`_
+        See also: `Breaking: #108055 - Removed frontend asset concatenation and compression <https://docs.typo3.org/permalink/changelog:breaking-108055-1762346705>`_.
 
 ..  _typo3ConfVars_fe_pageNotFoundOnCHashError:
 

diff --git a/Documentation/Security/GuidelinesAdministrators/_codesnippets/_nginx.config b/Documentation/Security/GuidelinesAdministrators/_codesnippets/_nginx.config
@@ -99,8 +99,6 @@ server {
 
     # Compressing resource files will save bandwidth and so improve loading speed especially for users
     # with slower internet connections. TYPO3 can compress the .js and .css files for you.
-    # *) Set the TypoScript properties
-    #    config.compressJs and config.compressCss for GZIP compression of Frontend JS and CSS files.
     location ~ \.js\.gzip$ {
         add_header Content-Encoding gzip;
         gzip off;

diff --git a/Documentation/Security/GuidelinesIntegrators/Typoscript.rst b/Documentation/Security/GuidelinesIntegrators/Typoscript.rst
@@ -172,8 +172,6 @@ A typical example in TypoScript looks like:
      includeJS {
        jQuery = https://code.jquery.com/jquery-1.11.3.min.js
        jQuery.external = 1
-       jQuery.disableCompression = 1
-       jQuery.excludeFromConcatenation = 1
        jQuery.integrity = sha256-7LkWEzqTdpEfELxcZZlS6wAx5Ff13zZ83lYO2/ujj7g=
      }
    }