Last week saw the release of version 3.0.0 of the Oracle Java Extension Toolkit (JET). This is a major release of the toolkit, containing significant updates to JET components, cookbook, tooling and themes, along with updates to 3rd party libraries.
Please refer to the Release Notes
for detailed information about the changes and how they may affect you.
Please refer to the Migration Guide
and note the reference to the Developer Guide
for steps required when migrating your Oracle JET application to v3.0.0 if you are using Oracle JET tooling.