TYPO3 Core

Wouter Wolters wrote:

as this issue is very old. Is this feature missing in newer versions of TYPO3 CMS (6.2.9)?

As far as I am aware, the complete feature is still missing.

TYPO3 4.7 introduced the parameters cache and addPageCacheTags into stdWrap. This feature covers parts of what lilio_cachetags does, but is far from complete:

• stdWrap's addPageCacheTags is a comma separated list, whilst lilio_cachetags uses an array to create cache tags. In case of multiple tags, an array is easier to modify and more protected from accidental overwrites.

• lilio_cachetags enables you to clear the cache for specific cache tags through TypoScript.

- Mathias

Here's an update of what's still missing and what's implemented in the core thus far.

The entire functionality of the CACHETAGS cObject is now in the core.
https://docs.typo3.org/m/typo3/reference-typoscript/master/en-us/Functions/Cache.html

The CLEARCACHETAGS cObject functionality (i.e. to be able to clear the cache for certain tags) is still missing.
Some of the functionality can be implemented through TCEMAIN in the backend, but it is limited to hard-coded tags. I.e. you cannot clear blah_123 where 123 is the UID of the record changed.
https://docs.typo3.org/m/typo3/reference-tsconfig/master/en-us/PageTsconfig/TceMain.html#clearcachecmd

The manual's "Why is this needed" section gives a good example of why clearing the cache based on a dynamic cache tag could be useful. https://docs.typo3.org/typo3cms/extensions/lilio_cachetags/0.0.1/Manual/Index.html#why-is-it-needed