Files
nextcloud-docs/user_manual/files/versioncontrol.rst
Volkan Gezer b2f0f67290 User manual updated to version 6
This deletes obsolete images and updates previous apps of ownCloud6
What's new:
* documents app
* user preferences
* new images
* update instructions
* files app using web interface
* updates to existing pages
2014-01-03 16:25:26 +01:00

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Version Control
===============
ownCloud supports simple version control for files. Versioning creates backups
of files which are accessible via the Versions link. This link contains the
history of the file where you can roll back a file to any previous version. Changes
made at intervals greater than two minutes are saved in data/[user]/versions,
and made accessible using the above pages.
Versioning is **not** enabled by default and needs to be enabled by administrator
using App management page.
To restore a specific version of a file, hover your cursor on a file and click
*Versions* link. If any version is available, you should see a list like the image
below:
.. figure:: ../images/files_versioning.png
Clicking on *Restore* next to any version will revert the file to that
version back.
The versioning app expires old versions automatically to make sure that
the user doesn't run out of space. Following pattern is used to delete
old versions:
* For the first 10 seconds ownCloud keeps one version every 2 seconds
* For the first hour ownCloud keeps one version every minute
* For the first 24 hours ownCloud keeps one version every hour
* For the first 30 days ownCloud keeps one version every day
* After the first 30 days ownCloud keeps one version every week
The versions are adjusted along this pattern every time a new version gets
created.
Beside that the version app takes care to never use more that 50% of the users
currently available free space. If the stored versions exceed this limit ownCloud
delete the oldest versions until it meets the memory usage limit again.