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Merge pull request #7583 from prometheus/beorn7/release 

Cut 2.20.0-rc.0
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Björn Rabenstein 2020-07-16 17:54:41 +02:00 committed by GitHub
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CHANGELOG.md
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## master / unreleased
## 2.20.0-rc.0 / 2020-07-16
* [ENHANCEMENT] TSDB: WAL compression is enabled by default.
* [CHANGE] promtool: Changed rule numbering from 0-based to 1-based when reporting rule errors. #7495
* [CHANGE] Remote read: Added `prometheus_remote_storage_read_queries_total` counter and `prometheus_remote_storage_read_request_duration_seconds` histogram, removed `prometheus_remote_storage_remote_read_queries_total` counter.
* [CHANGE] Remote write: Added buckets for longer durations to `prometheus_remote_storage_sent_batch_duration_seconds` histogram.
* [CHANGE] TSDB: WAL compression is enabled by default. #7410
* [FEATURE] PromQL: Added `group()` aggregator. #7480
* [FEATURE] SD: Added Docker Swarm SD. #7420
* [FEATURE] SD: Added DigitalOcean SD. #7407
* [FEATURE] SD: Added Openstack config option to query alternative endpoints. #7494
* [ENHANCEMENT] Configuration: Exit early on invalid config file and signal it with exit code 2. #7399
* [ENHANCEMENT] PromQL: `without` is now a valid metric identifier. #7533
* [ENHANCEMENT] PromQL: Optimized regex label matching for literals within the pattern or as prefix/suffix. #7453 #7503
* [ENHANCEMENT] promtool: Added time range parameters for labels API in promtool. #7463
* [ENHANCEMENT] Remote write: Include samples waiting in channel in pending samples metric. Log number of dropped samples on hard shutdown. #7335
* [ENHANCEMENT] Scrape: Ingest synthetic scrape report metrics atomically with the corresponding scraped metrics. #7562
* [ENHANCEMENT] SD: Reduce timeouts for Openstack SD. #7507
* [ENHANCEMENT] SD: Use 10m timeout for Consul watches. #7423
* [ENHANCEMENT] SD: Added AMI meta label for EC2 SD. #7386
* [ENHANCEMENT] TSDB: Increment WAL corruption metric also on WAL corruption during checkpointing. #7491
* [ENHANCEMENT] TSDB: Improved query performance for high-cardinality labels. #7448
* [ENHANCEMENT] UI: Display dates as well as timestamps in status page. #7544
* [ENHANCEMENT] UI: Improved scrolling when following hash-fragment links. #7456
* [ENHANCEMENT] UI: React UI renders numbers in alerts in a more human-readable way. #7426
* [BUGFIX] API: Fixed error status code in the query API. #7435
* [BUGFIX] PromQL: Fixed `avg` and `avg_over_time` for NaN, Inf, and float64 overflows. #7346
* [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: Avoid leaving behind empty files in `chunks_head`, causing startup failures. #7573
* [BUGFIX] TSDB: Fixed race between compact (gc, populate) and head append causing unknown symbol error. #7560
* [BUGFIX] TSDB: Fixed unknown symbol error during head compaction. #7526
* [BUGFIX] TSDB: Fixed panic during TSDB metric registration. #7501
* [BUGFIX] TSDB: Fixed `--limit` command line flag in `tsdb` tool. #7430
## 2.19.2 / 2020-06-26

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2.19.2
2.20.0-rc.0