After the last update I have come across two issues:
First, emptying page caches takes very long time than before and often ends up with blank white page. After second and third attempt cleaning caches, I got the message that caches are emptied successfully.
Secondly, while disabling Data Base Cache the following error is populated:
[an error occurred while processing this directive]. After refreshing the plugin page, it looks like the data base has been disabled successfully (at least the box is unchecked).