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Sorry to hear you’re facing problems 
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In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:
example
Or for longer, use three backticks above and below the code snippet:
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Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can 
Nextcloud version _14 2.5.1:
Operating system and version _Windows 10 Pro
Apache or nginx version (eg, Apache 2.4.25):
PHP version (eg, 7.1):
The issue you are facing: I use Windows Pro fully updatet on my pc and I get the notification to update to Nextcloud 14. When I click the download link it says 2.5.1. I install the file and still get the update message? On the server everything is done by my serverhost so I don’t need help with that. It is just on the desktop version I run into this ‘problem’ And I have 1 pc and 4 laptops to give support to, and all of them give the same problem.
Is this the first time you’ve seen this error? No UI tried installing the file several times but no luck on removing the update notification.
Steps to replicate it:
- restart and fire up nextcloud
The output of your Nextcloud log in Admin > Logging:
PASTE HERE
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
PASTE HERE
The output of your Apache/nginx/system log in /var/log/____:
PASTE HERE