Why did the ladder season end?

[KGB]

Isn't there usually a warning it's coming to a close and doesn't it normally last more than 4 months?

It would make sense if you getting ready to release an update to fix the tower issues and the battle bug on the 90% rule.

KGB

[Moonknight]

Yep, 4 months for each ladder season with set end dates of April 30, August 31, December 31.

[SnotlinG]

If you look on the ladder page, it tells you what end-date it has.
We have had some ideas about some kind of more visible countdown on the page also.

As it happens, we are also getting ready to release such an update, should come quite soon. (so maybe wait a few days with starting new games in case you want the latest fixes in )