All deadlines are due 23:59 UTC, but if you need a few more hours, notify someone from the release team.
Applications in 15.08 can be based on kdelibs4 or KDE Frameworks 5 at maintainers decision, basically we will release whatever is in master of the repository. Please make sure all your dependencies or people that depend on you are aware of your decision to not cause problems.
From this moment on it is not allowed to add new dependencies or bump dependencies versions. It is possible to get an exception for this. Post the patch to reviewboard and add the release-team as reviewer. We will check if the dependency is needed and is available on all platforms.
In other words: If you have a feature that requires a new dependency or a version of a dependency that is higher than currently checked for in the build system, you need to have committed this change before this date.
Frozen: no changes to new dependencies, UI, features, artwork.
Beta is tagged (tag name is v15.07.80). As soon as the tarballs have been confirmed to build and the Release Team thinks they meet enough quality it will be released
Release Candidate is tagged (tag name is v15.07.90). As soon as the tarballs have been confirmed to build and the Release Team thinks they meet enough quality it will be released
The branch is frozen for final release tagging (tag name is v15.08.0). Only urgent fixes, such as those fixing compilation errors, should be committed.
Final release is released for general consumption.