welcome back! there's been a lot over the past... 2 years? anyways, quite a lot has happened, like a recent update that adds more possibilities for custom blocks, and some collabs like Snap!nix Neo, and users have come and gone (like you). i'm not gonna write every single thing that happened, but yeah quite a bit has happened.
edit: also cool stuff you got there. i briefly looked at all of it and it looked cool.