It’s the end of the road for the once ubiquitous Mac app, as its creator Christopher Forsythe writes:
Growl is being retired after surviving for 17 years. With the announcement of Apple’s new hardware platform, a general shift of developers to Apple’s notification system, and a lack of obvious ways to improve Growl beyond what it is and has been, we’re announcing the retirement of Growl as of today.
It’s been a long time coming. Growl is the project I worked on for the longest period of my open source career. However at WWDC in 2012 everyone on the team saw the writing on the wall. This was my only WWDC. This is the WWDC where Notification Center was announced. Ironically Growl was called Global Notifications Center, before I renamed it to Growl because I thought the name was too geeky. There’s even a sourceforge project for Global Notifications Center still out there if you want to go find it.