I've written a blog post summarising the changes here: https://danielcompton.net/2016/11/29/guide-to-datomic-licensing-changes https://danielcompton.net/2016/11

I've written a blog post summarising the changes here: https://danielcompton.net/2016/11/29/guide-to-datomic-licensing-changes https://danielcompton.net/2016/11/29/guide-to-datomic-licens.... In a nutshell: * No limits on process count * Datomic Pro Starter is now limited to one year of usage, then you need to pay $5,000 for Datomic Pro * Riak, Couchbase, and Infinispan are now legacy storage and only available through Datomic Enterprise.