This is a patch release that focuses on stability and performance. @DavidVorick and @ChrisSchinnerl reworked the upload and download algorithms in the renter, and also added configurable ratelimiting so that Sia doesn't eat all of your bandwidth. @lukechampine fixed a long-standing bug in the host that caused it to perform needless I/O when idle. We added a new endpoint for checking if a transaction was confirmed. And as always, we fixed many more minor bugs and inefficiencies.
We also had a concerted effort, beginning with #2746, to get all of Sia's package passing golint. @mharkus, @tbenz9, @mikkeljuhl, and @mjmay08 all contributed PRs to steadily improve coverage. Once #2786 is merged, we will have achieved this goal! Thanks to @tbenz9 for organizing this effort.
@tbenz9 also contributed an interesting PR (#2833) that includes the git commit hash in binaries built with the Makefile. This makes it possible to identify exactly what code is running, which is super helpful for debugging.