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41 lines
2.0 KiB
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=======================
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Upgrade to Nextcloud 31
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=======================
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System requirements
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-------------------
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* PHP 8.1 is now deprecated but still supported.
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* PHP 8.4 is now supported, but 8.3 is recommended.
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Database configuration
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----------------------
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Other row formats than ``DYNAMIC`` for MySQL and MariaDB databases will `issue a warning since Nextcloud 24 <https://github.com/nextcloud/server/issues/34497>`_,
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as they often cause performance issues.
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With Nextcloud 31 a `more prominent new setup warning <https://github.com/nextcloud/server/pull/48547>`_ for this was added.
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To resolve the warning, in most cases running ``occ db:convert-mysql-charset`` will resolve the issue.
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If some tables are not covered by the ``occ`` command, issuing the proper ``ALTER TABLE`` DDL commands to change the row format during a maintenance window is needed.
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If you're not sure how to do this, you can `find some tips and tricks from the community <https://help.nextcloud.com/t/upgrade-to-nextcloud-hub-10-31-0-0-incorrect-row-format-found-in-your-database/218366/>`_.
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PHP configuration
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-----------------
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We have a new setup warning to check if the memory reserved for APCu is high enough.
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If you see this warning, you should increase the memory reserved for APCu.
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You can do this by increasing the value of the ``apc.shm_size`` directive in your ``php.ini`` file.
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It is generally advised to review this value and increase it if necessary depending on your instance size.
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Nextcloud configuration
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-----------------------
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Maximum chunk size
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^^^^^^^^^^^^^^^^^^
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We have adjusted the default maximum chunk size for big file uploading.
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Previously it was set to 10MiB, it is now increased to 100MiB.
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Also the configuration was moved from an app configuration to the system configuration (``config.php``).
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If you set up a custom value previously the value will be automatically migrated to the system configuration during the update.
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But if you need to set a new custom value you need now to use the system configuration, see also :ref:`files_configure_max_chunk_size`.
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