This section is for developers and maintainers who are familiar with an earlier version of the documentation.
Here we try to summarize what's new. You will find the breaking changes at :ref:`upgrade_to_34`, new deprecations at :ref:`deprecated-apis` and new API features at :ref:`new-apis`.
.. toctree:: :maxdepth: 3 new deprecations ../app_publishing_maintenance/app_upgrade_guide/upgrade_to_34