After the latest upgrade I noticed a small issue with the icons.
First, some of the icons seemed out of place (it showed a dog for the appearance menu), but a hard refresh of my browser window fixed this problem.
The other problem I encountered is with the icons of the custom menu items added by plugin like WordPress SEO by Yoast. For some strange reason, when I go to the Contact Form 7 page, the icons for the other custom menu items disappear. (In my case these are WordPress SEO by Yoast and WordFence.) After switching to any other page, they appear again. This only happens when visiting Contact Forms 7, not when visiting WordPress SEO of Wordfence.
It's a minor issue, but nonetheless I bring it to your attention. I'm using Firefox for Mac by the way.
Overall, still a great plugin.