User blog:0Amaryllis0/Whats going on?

I just signed into Sims 4 and decided to make a new sim. When I was customizing their clothing, I looked up in the catagory bar (everyday, formal, etc) and saw hot and cold clothing? What is this? I never bought anything packs since last year and never downloaded the Seasons expansion pack! Is this a new update, because I had to update the game last night?