In the newest AEM documentation it states "use the version of Oak-run that matches the Oak core of your AEM installation"
The most reliable way to do that is to perform the following:
- Navigate to /system/console/bundles
- Filter by org.apache.jackrabbit.oak-core
- The version will be listed clearly
Oak Coreorg.apache.jackrabbit.oak-core
Symbolic Name org.apache.jackrabbit.oak-core
Version 1.6.11
Bundle Location launchpad:resources/install.crx3/15/oak-core-1.6.1.jar
.....