Until now, the current 12.x branch of Simutrans-Extended had the minor number of 9000, being marked as version 12.9000. From to-morrow's nightly version, this will be reset to zero, to give 12.0.
In the future, these minor numbers will be incremented with every significant change of feature-set (but not with minor amendments or bug fixes). This should help to give players an idea of the progression of changes in the game.
Sounds like a good idea!
What?! How can you expect us to do "It's over 9000 (http://knowyourmeme.com/memes/it-s-over-9000)" jokes with Simutrans-Ex if it's going to be reset to zero?
Sad! s:(
/jk