Provide an online Upgrade Path Tool

[delacosta456]

How to use GitHub

• Please use the 👍 reaction to show that you are interested into the same feature.
• Please don't comment if you have no relevant information to add. It's just extra noise for everyone subscribed to this issue.
• Subscribe to receive notifications on status change and new comments.

Is your feature request related to a problem? Please describe.
Hi
it's common today in update / upgrade process to to be careful with compatibility issues between old(unsupported/deprecated)version of software/web application. In Admin documentation, Nextcloud too mentioned it : **Nextcloud must be upgraded step by step

In some situation (Ex: this feature request situation's description or it's related issue here ) it me good to have a best guidance in compatibility checks before processing update/ugrade that could help instruct the path to follow from older-version-TO-newer-version. Having a kind of dynamic web page upgrade path tool can help

Describe the solution you'd like
The best way to illustrate this is to look here what i use for GITLAB when i want to update/upgrade between versions
if it make sense this may also check existing apps compatibility with a major Nextcloud release.

IMHO, this can also reduce time consuming for maintainer that has 20+ instance of Nextcloud and will have to battle between Nextcloud issues+ Apps Issues + App store of/in each Instance's UI update channel check

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Look here please here

Thanks and sorry for my english