So, I got bored of just using regular skript stuff for expressions. What did I do? I went to look at hub.spigotmc.org and saw plenty of new entity and living entity expressions. With Skript-Mirror, I was able to use them. So, what did I do? I made about 30 new features with it. There's only 1 new arithmetic (math) feature, and a couple of basic time and date features. This update is pretty cool though. Here are some of the new things we added (shown in examples)

Spoiler: Examples

Code (Text):

1. command /silent:
2.     trigger:
3.         if player is silent: #SimpleSK feature
4.             make player not quiet #Other simpleSK feature
5. command /onTheGround:
6.     trigger:
7.         if player is on the ground: #SimpleSK Feature
8.             push player upwards at speed 1
9. on damage:
10.     attacker is a zombie
11.     victim is a player
12.     cancel event
13.     disable attacker's AI #SimpleSK Feature
14.  
15.  

Plenty of more, too! Hoping this update helps.

If you have any feature suggestions OR you found a bug, please tell me in the Discussion section! Thanks!