As someone who's been a CH member for nearly 15 years, I have to say three sorta recent upgrades (okay, it's been years for one of them) have been really great and helpful:
1) Moving to Aurora. I know it was a lot of work, but it just makes sense to have all the trainers together and easily accessible and all the settings unified.
2) The option to Remember Activated Cheats. The cheats are just on/off, it's obvious the trainer should remember the state when restarting - and now it does! Especially great for cheats with tons of options.
3) The option to Automatically Mute Hotkeys when leaving the game focus and re-activating them when coming back. I just can't express how annoying it's been over the years to switch away from the game to something demanding attention, hitting numpad to navigate... and hearing unknown cheats turn on and off. So much that I used to disable the hotkeys and just hit things manually with mouse. It's awesome to not have to worry about that any more.
So lots of big thank yous to the development team.
Damn, I hadn't noticed option 3, thank you for mentioning it! That's a lifesaver!
And yeah, in the end I'm really happy Aurora exists now, it makes life much simpler and more pleasant!