# Upgrade from OC 10.0.3.3 to NC 12.0.3 not possible? **URL:** \ **Category:** ℹ️ Support\ **Created:** [November 5, 2017, 8:56pm UTC](https://help.nextcloud.com/t/upgrade-from-oc-10-0-3-3-to-nc-12-0-3-not-possible/23196 "2017-11-05T20:56:05Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![peterpan](https://help.nextcloud.com/letter_avatar/peterpan/32/5_5575768a8748004e209b776fc1b2916d.png) [@peterpan](https://help.nextcloud.com/u/peterpan)\ **Post date:** [November 5, 2017, 8:56pm UTC](https://help.nextcloud.com/t/upgrade-from-oc-10-0-3-3-to-nc-12-0-3-not-possible/23196/1 "2017-11-05T20:56:06Z")
I had OC 10.0.3.3 and want to switch to NC. So I took the latest version and according to [https://nextcloud.com/migration/](https://nextcloud.com/migration/) it should work. I choose the manual path. First deleted all OC files (except config and data) and then copied the new NC files. And started sudo -u www-data php occ upgrade. But I get this: _Exception: Updates between multiple major versions and downgrades are unsupported._ _Update failed_ What can I do? ---
**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 2, 2024, 2:53pm UTC](https://help.nextcloud.com/t/upgrade-from-oc-10-0-3-3-to-nc-12-0-3-not-possible/23196/2 "2024-12-02T14:53:53Z")
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**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 4, 2024, 2:06pm UTC](https://help.nextcloud.com/t/upgrade-from-oc-10-0-3-3-to-nc-12-0-3-not-possible/23196/3 "2024-12-04T14:06:39Z")