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prometheus v2.21.0-rc.0 Release Notes

Release Date: 2020-08-28 // over 3 years ago

  • 🚀 This release is built with Go 1.15, which deprecates X.509 CommonName in TLS certificates
    validation.

    • [CHANGE] Disable HTTP/2 because of concerns with the Go HTTP/2 client. #7588 #7701
    • 🌲 [CHANGE] PromQL: query_log_file path is now relative to the config file. #7701
    • 💻 [CHANGE] Promtool: Replace the tsdb command line tool by a promtool tsdb subcommand. #6088
    • [CHANGE] Rules: Label rule_group_iterations metric with group name. #7823
    • [FEATURE] Eureka SD: New service discovery. #3369
    • [FEATURE] Hetzner SD: New service discovery. #7822
    • 👍 [FEATURE] Kubernetes SD: Support Kubernetes EndpointSlices. #6838
    • [FEATURE] Scrape: Add per scrape-config targets limit. #7554
    • 💻 [ENHANCEMENT] Support composite durations in PromQL, config and UI, e.g. 1h30m. #7713 #7833
    • [ENHANCEMENT] DNS SD: Add SRV record target and port meta labels. #7678
    • 🐳 [ENHANCEMENT] Docker Swarm SD: Support tasks and service without published ports. #7686
    • [ENHANCEMENT] PromQL: Reduce the amount of data queried by remote read when a subquery has an offset. #7667
    • [ENHANCEMENT] Promtool: Add --time option to query instant command. #7829
    • 🚚 [ENHANCEMENT] UI: Move "remove graph" closer to query area. #5990
    • 🛠 [BUGFIX] PromQL: Drop metric name in bool comparison between two instant vectors. #7819
    • 🛠 [BUGFIX] Rules: Detect extra fields in rule files. #7767
    • 🛠 [BUGFIX] Rules: Disallow overwriting the metric name in the labels section of recording rules. #7787
    • 🛠 [BUGFIX] Rules: Keep evaluation timestamp across reloads. #7775
    • 🛠 [BUGFIX] Scrape: Do not stop scrapes in progress during reload. #7752
    • 🛠 [BUGFIX] TSDB: Fix chunks.HeadReadWriter: maxt of the files are not set error. #7856
    • 🛠 [BUGFIX] TSDB: Delete blocks atomically to prevent corruption when there is a panic/crash during deletion. #7772
    • [BUGFIX] Triton SD: Fix a panic when triton_sd_config is nil. #7671
    • 🛠 [BUGFIX] UI: Fix react UI bug with series going on and off. #7804
    • 🛠 [BUGFIX] Web: Stop CMUX and GRPC servers even with stale connections, preventing the server to stop on SIGTERM. #7810