Heh,
drhowarddrfine, you're grumpy for someone whose child just got engaged. (And thank you again for sharing that wonderful story).
Keep in mind that not everyone is a native English speaker, and that these things aren't necessarily clear to those who are beginning.
And actually, that's an interesting question to me, and even as a native English speaker, who isn't a complete novice, it's not clear. On the front page of
https://www.freebsd.org, they don't mention 10.2 as a production release.
masayoshi, my guess, (and maybe someone can confirm this) is that 10.1 is a LTS (Long Term Support) release, and 10.2 wasn't. Last time I looked though, their support expires on the same day--I remember we were trying to decide which to install on something and chose 10.2 for that reason. (Checks to make sure it's still true--yup, it is.) I'm using LTS, which may be a Linux distribution term, the term I'm seeing on
https://www.freebsd.org/security/ is Extended, but either way, the meaning is pretty similar.
So.... as far as I can guess, and it's only a guess because I'm far too lazy to look into it further, the production versions they are listing on the front page are the ones with extended support. However, 10.1 and 10.2 have the same expected EOL (End Of Life) date.