By god, keep CI4 simple and flexible

@imabot: One app, and I "adopted" it for my own personal website.

@eggbert I generally agree. But before talking about "legacy", the version 4 LTS should be released. People have been waiting for years for the new version. We can understand that the term "RC3" in 2020 can "scare" some persons. Note that on CI's download page you can read "CodeIgniter comes in three flavors: CodeIgniter 3 (current), CodeIgniter 4 (future) and CodeIgniter 2 (legacy)". Before that, the message was something like "do not use in production". When I decided to switch, I took some kind of "risk". It seems normal to me that some people need to be reassured.