WP 4.1 RC2

Marius (Clorith), Moderator of Bananas said here :
https://ww.wp.xz.cn/support/topic/i-now-have-42-alpha-1/page/2?replies=39

It’s not an error from a developer, it’s the expected behavior, if you are on the RC build then updates are considered to be from the nightly builds (which is branched to 4.2-alpha at this point), this is how development processes work

Then you cant said

For those of us who were testing WP 4.1-beta and were unexpectedly bumped to WP 4.2-alpha