We've just published version 3.0.0.RELEASE of the
Thymelaf + Java 8 Time extras package, which means that this extension can now be used with Thymeleaf 3.0.
The Java8Time package adds compatibility (and utilities) for using the java.time package new in Java 8.
See it at the project's page on GitHub:
https://github.com/thymeleaf/thymeleaf-extras-java8timeEnjoy!