* [FEATURE] TSDB: Add a flag(`--storage.tsdb.max-block-chunk-segment-size`) to control the max chunks file size of the blocks for small Prometheus instances. #8478
* [BUGFIX] Consul Discovery: Restart no longer required after config update with no targets. #8766
## 2.26.0 / 2021-03-31
Prometheus is now built and supporting Go 1.16 (#8544). This reverts the memory release pattern added in Go 1.12. This makes common RSS usage metrics showing more accurate number for actual memory used by Prometheus. You can read more details [here](https://www.bwplotka.dev/2019/golang-memory-monitoring/).