Adobe Creative Cloud 2017 edition is out for a few months already and all our plug-ins are fully compatible. You can download the latest installers from here.
Legacy versions, such as Plexus 2 are NOT compatible with CC 2017 anymore due to API changes. After Effects has been going major API changes in recent versions and it's no longer possible to maintain older legacy versions of Plexus.
Hence, we strongly recommend you to upgrade to Plexus 3 which is designed from the ground up for AE's new architecture and also utilize all the new APIs introduced in After Effects to get much better performance.
If you're a Plexus v2/Plexus v1 user and want to upgrade to Plexus 3, make sure to checkout the discounted upgrade pricing.