See Issue #83244
When using links for fluid widgets (like Paginator widgets) it is not possible to disable the cHash calculation.
A new argument useCacheHash for the <f:widget.link> and the <f:widget.uri> ViewHelpers has been added
to re-enable the previous behaviour.
Additionally, using cHash and addQueryString is counterproductive for deterministic caching purposes,
thus this combination should not be set by TYPO3 core by default.
Using the <f:widget.link> or <f:widget.uri> ViewHelper will not generate a cHash anymore.
Installations using extensions that are built around Fluid widgets.
None. If necessary, activate the cHash calculation by using the newly introduced Fluid argument “useCacheHash”.