Yeah, it’s rude. But for this first time, I’ll assume it's just translation and cultural issues. There won't be a next time, so consider yourself warned.
The Christmas update was and is on the browser version. It’s browser-only! All festivals are browser-only—no downloadables. This is mentioned in every post about festive releases. Also, they expire with each new release or the next festival. So, you still have some time left to play it before the upcoming update.
Also, the dev posts about progress every week on Patreon and every day on Discord. Subscribe to stay in touch.
And please, visit our FAQ page. The link is in the game description.