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Getting help
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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. 
The Basics
- Nextcloud Server version (e.g., 29.x.x):
Nextcloud Hub 10 (31.0.6)
- Operating system and version (e.g., Ubuntu 24.04):
Archlinux
- Web server and version (e.g, Apache 2.4.25):
2.4.63
- Reverse proxy and version _(e.g. nginx 1.27.2)
replace me
- PHP version (e.g, 8.3):
8.2.28
- Is this the first time you’ve seen this error? (Yes / No):
No
- When did this problem seem to first start?
Within past 6 months or so
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
Bare Metal
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
Nope
Summary of the issue you are facing:
With each update, checking the Administrative Overview, we are continually warned about a newer MariaDB version, e.g.
MariaDB version "11.8.2-MariaDB" detected. MariaDB >=10.6 and <=11.4 is suggested for
best performance, stability and functionality with this version of Nextcloud.
All of the threads/prior questions say “We do not officially support the newer version yet.”
So… Why not? What is it you expect to have broken between MariaDB versions 11.4 and 11.8? When was the last time a MariaDB minor-version update broke backwards compatibility that effected Nextcloud?
From the responses to earlier MariaDB version questions, a downgrade of MariaDB isn’t needed, yet the Warning clearly states "for best performance, stability and functionality with this version of Nextcloud" that the MariaDB version should match the recommended versions.
- What is this based on??
- What problems are there with MariaDB versions
>= 11.4?
I work to keep my Administrative Overview clear of any errors and warnings, yet despite that effort, the MariaDB warning persists and there is no concrete data made available on the Nextcloud site, that I could find, that justifies this warning being present in the Administrative overview?
I’ve run Nextcloud on Archlinux for several years beginning back with Ver. 25? Archlinux always provides versions of packages that match the current upstream release. (Arch did create php-legacy to continue PHP-8.2 specifically for Nextcloud). However, for the first couple of years of this install there was never a MariaDB version warning. Was there an issue in the version 11 release somewhere along the way?
I’m just trying to determine what level of “Warning” the MariaDB version warning amounts to, and if the recommendation is “You probably don’t need to downgrade” – then why the warning at all?
Steps to replicate it (hint: details matter!):
- Run Archlinux and Nextcloud (latest version)
- Check Administrative Overview
- Read warning about MariaDB Version warning.
Log entries
N/A
Nextcloud
Please provide the log entries from your Nextcloud log that are generated during the time of problem (via the Copy raw option from Administration settings->Logging screen or from your nextcloud.log located in your data directory). Feel free to use a pastebin/gist service if necessary.
N/A
Web Browser
If the problem is related to the Web interface, open your browser inspector Console and Network tabs while refreshing (reloading) and reproducing the problem. Provide any relevant output/errors here that appear.
N/A
Web server / Reverse Proxy
The output of your Apache/nginx/system log in /var/log/____:
N/A
Configuration
Nextcloud
The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):
mariadb 11.8.2-1
Apps
N/A