V 1.0.7 is a beautiful update! The update includes:
- Bubble background in settings
- ability to mute and unmute coin sound
- Forest background fix
- X50 multiplier
- X100 multiplier
- Jimmy Coin, spawns randomly between 7 - 15 minutes ( grants 2000 coins on interact ) 
Here are all the costs for upgrades: 

2x - 1000 coins
5x - 3500 coins
10x - 6000 coins
50x - 10,000 coins
100x - 15,000 coins