* [ENHANCEMENT] SD: Enable use of Unix socket for Docker Swarm. #7604
* [BUGFIX] SD: Don't panic on an empty Docker Swarm config. #7615
* [BUGFIX] TSDB: Don't panic on WAL corruptions. #7550
## 2.20.0-rc.0 / 2020-07-16
## 2.20.0 / 2020-07-22
This release changes WAL compression from opt-in to default. WAL compression will prevent a downgrade to v2.10 or earlier without deleting the WAL. Disable WAL compression explicitly by setting the command line flag `--no-storage.tsdb.wal-compression` if you require downgrading to v2.10 or earlier.
@ -36,6 +29,7 @@ This release changes WAL compression from opt-in to default. WAL compression wil
* [BUGFIX] PromQL: Fixed off-by-one error in `histogram_quantile`. #7393
* [BUGFIX] promtool: Support extended durations in rules unit tests. #6297
* [BUGFIX] Scrape: Fix undercounting for `scrape_samples_post_metric_relabeling` in case of errors. #7342
* [BUGFIX] TSDB: Don't panic on WAL corruptions. #7550