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Version 4 maintenance: We are still maintaining version 4 and providing especially fixes to security issues and other important fixes. New functionality is only added to the new version 5, so please consider upgrading to version 5 soon.
Version 5 is NOT fully backward compatible to version 4! Be aware, there are some breaking changes. Please refer to the
Version 5 - Changes page to see a full documentation of all changes you should have a look on.
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