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Document the upgrade of symfony in 19 and required changes

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Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>
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Christoph Wurst 2020-04-09 17:52:20 +02:00
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developer_manual/app/upgrade-guide.rst
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@ -6,6 +6,17 @@ Once you've created and published the first version of your app, you will want t
This document will cover the most important changes in Nextcloud, as well as some guides on how to upgrade existing apps.
Upgrading to Nextcloud 19
-------------------------
Back-end changes
^^^^^^^^^^^^^^^^
Symfony update
**************
Symfony was updated to `v4.4 <https://github.com/symfony/symfony/blob/4.4/CHANGELOG-4.4.md>`_. The most important change for apps is to return an int value from CLI commands. Returning null (explicitly or implicitly) won't be allowed in future versions of Symfony.
Upgrading to Nextcloud 18
-------------------------