Refinery 1.20

Refinery, our tail-sampling proxy, has a new release! 1.20 has several features designed to help when operating Refinery at scale.

Some highlights include:

Stress Relief - a mechanism that sheds load when Refinery is under duress, preventing crash loops
Configurable Trace IDs and Span IDs
Dry Run mode now sets meta.dryrun.sample_rate instead of SampleRate so that queries are accurate in Usage Mode

P Phillip