Prometheus v2.26.0 is out!

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Mar 31, 2021, 11:29:52 AM3/31/21

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Hi,

v2.26.0 was released today. Please try it out and give us feedback!

Notable changes:

Experimental query editor UI helps you to write correct PromQL queries, with auto-completion, syntax highlighting, and linting. 🤩
Two experimental features have been added, these are disabled by default and may change in the future:
- If you enable `--enable-feature=exemplar-storage`, Prometheus will hold a certain amount of scraped OpenMetrics' Exemplars in circular memory. It will also expose `/api/v1/query_exemplars` querying HTTP API. Exemplars are allowing sweet correlations between metrics and log ling or trace. 🚀
- PromQL support for negative offset in queries via feature flag `--enable-feature=promql-negative-offset`. (eg. `sum_over_time(metric[1h:1m] offset -5m)`) 💥
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 a more accurate number for actual memory used by Prometheus. You can read more details here. 📈