Here's the new offering:
- We've added Datomic Free Edition - it's free and redistributable
- Datomic Pro is licensed software.
- It is offered with a perpetual license.
- Maintenance (updates and support) for the first 12 months is included.
- Maintenance in subsequent years is ~50% of the license fee.
- Pricing is yearly, and up front on web site.
- Pricing is based upon the number of processes (transactors + peers) using the software in production in your organization.
- Development and testing usage doesn't count against your license limits
We've priced it such that the expenditure for maintenance roughly correlates to our older subscription pricing.
Evaluation has changed a bit as well. In all modes, Datomic Pro will require a license key. You can get a free 30-day eval key via the web site. There is no longer a 'runs for a week without a key' mode.
Note that Datomic is not just for cloud deployments - our SQL and other storage support lets you run it on-premise or in the cloud.
You can get more information on the editions and pricing here.