[TYPO3-calendar] Status and future of cal extension?

[Markus]

Hi,

I am worried about the status and future of cal extension. It is very 
calm around in the bug tracker and here in the newsgroup.

There ary many warnings regarding cal extension since upgrade to TYPO3 
8.7 and there is no information how to fix it or if it will be fixed.

Is there still any active development or maintenance of cal extension?

Thanks,

Markus