- Added local timezone support in graph UI, new absent_over_time PromQL function, and optional per‑query logging.
- Improved UI and TSDB features: rules page, "Xs ago" durations, alerts filter checkboxes, WAL error metric export, and faster recent‑2h query performance.
- Fixed bugs across React UI (cookies, stacked graphs, back button), TSDB compaction metrics, PromQL operator precedence, remote read/write handling, and scrape validation.
2.16.0 / 2020-02-13
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