I want to know where I can find updated information about all the stable and in-development versions of Ubuntu, where I can find this information?

This question is meant to be a canonical question. It expects to answer the following questions:

• Is X version stable yet?


• Is X version in beta?


• Is X version still supported?


• What versions are still supported?


• What are the versions in Beta/Alpha?


• Until where X version will be supported?


• Have X version ceased support?


• When will be X version released?


• Where I can download any release?


• When will the next LTS version of Ubuntu be released?

The list is not exhaustive.