How would we know? It’s not WordPress’ responsibility to test all the 45k plugins hosted here and the millions elsewhere.
It is the responsibility of the plugin and theme developers to test their code against the Release Candidates of WordPress.
Period.
This release date has been published for six months. We publicly released betas and release candidates. We emailed every single plugin developer on www.remarpro.com (which by the way, RevSlider is not) about this update and asked them to test over a week ago.
We did everything we could short of smoke signals.
RevSlider is not hosted here, however, and it’s a premium plugin for paid users only.
We try our best to help everyone with any WordPress problem. However, due to the great variety of existing themes and plugins it is nearly impossible to know everything. Your best chance is to contact the developer for support. It’s always best to go to where the theme/plugin is officially supported when trying to get support.