Nik is the German company behind popular mobile app Snapseed, and a bunch of fantastic plugins for Adobe Photoshop and Lightroom. The company was bought in 2012 by Google, and all of its plugins have just been made free.
There's seven plugins up for grabs, including fantastic HDR and colour filters that I've been using for years. The full set was originally priced at $US500 ($664); Google dropped that price to $US150 ($199), before making it free today. Anyone who bought the plugins earlier in 2016 can also go get a refund, which is a classy move.
Making the plugins free does imply that Google isn't planning on developing Nik's desktop photography any further, but hey: if you have to grieve, a bunch of free software does help ease the pain.