This release introduces some battery optimization techniques. One is that the logic that waits for a GPS signal before initiating recording is far less aggressive (it used to happen every clock cycle, about a thousand times every second when you take serial logging into consideration). The other big one is log scaling. When a rider increases or decreases speed considerably, the logging resets to once a second. Otherwise, if the rider is going at a pretty consistent speed, logging is done less frequently.
There have been updates on a meta project level too. There are now community standards in the forms of a code of conduct and a contributing guide as well as templates for pull requests and issues.
This release is named brew because brew is a drink of coffee that almost anyone can think of something when they read it. For me a brew is usually a pour over cup of coffee, but there are many ways to brew coffee, and everyone will be able to think of something.