You may want to wait on updating to OS X 10.11 El Capitan, please see this support article from FileMaker: help.filemaker.com/app/answers/detail/a_id/15187
If you have already updated to OS X 10.11 El Capitan and are using 360Works plugins, read on.
360Works plugins are compatible with OS X 10.11 El Capitan, however, during the process of operating system update Java 6 is removed. And, when first launching FileMaker Pro after the os update you may encounter the following dialog:
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