The new features and incremental enhancements in Oracle 18c are:
- Memory Optimized Fetches
- Exadata RAC Optimizations
- High Availability
- Online Partition Merge
- Improved Machine Learning (OAA)
- Polymorphic Table Functions
- Spatial and Graph
- More JSON improvements
- Private Temporary Tablespaces
- New mode for Connection Manager
And now the all important links to the documentation.
To give Oracle 18c a try you will need to go to cloud.oracle.com and select Database from the drop down list from the Platform menu. Yes you are going to need an Oracle Cloud account and some money or some free credit. Go and get some free cloud credits at the upcoming Oracle Code events.
If you want a 'free' way of trying out Oracle 18c, you can use Oracle Live SQL. They have setup some examples of the new features for you to try.
NOTE: Oracle 18c is not Autonomous. Check out Tim Hall's blog posts about this. The Autonomous Oracle Database is something different, and we will be hearing more about this going forward.