Pixelmator 3.3.2 has been released with support for Apple's new Force Touch trackpad on the MacBook, as well as an improved repair tool. Based on the demo video, the repair tool looks extremely impressive. The folks at Pixelmator note they spent two years on getting this feature to where it is now.
Pixelmator is a fantastic image editor and, I must say, the one I use every day. Version 3.3.2 is a free update for existing users. The software costs $29.99 for new customers.