compare
M3 vs Thanos
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | M3 | Thanos |
|---|---|---|
| Language | Go | Go |
| Licence | Apache-2.0 | Apache-2.0 |
| Stars | 4.9k | 14k |
| Latest | v1.6.0 | v0.42.4 |
| Last push | 2026-10-14 | 2026-10-15 |
| Release cadence | about 69 days between releases | about 5 days between releases |
| Active contributors | 6 commit authors on the default branch in the last 90 days | 29 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
M3 replaces Thanos. Alternatives to Thanos →
Full replacementLong-term, horizontally scalable storage for Prometheus metrics.
M3
- v1.6.02026-09-25These affect users who import M3 as a Go library. Deployed binaries, on-disk formats and wire formats are unchanged.
- v1.5.02022-04-07M3DB: Optimize snapshotting by 30x or more which can speedup bootstrapping for workloads with large snapshots. (#4093)
- v1.4.22022-01-19M3Coordinator: Guard against duplicate rollup tags in aggregation matching logic. (#3950)
- v1.4.12021-11-20M3Coordinator: Do not Close singleton MessageProcessors when closing connections. This fixes a panic introduced that af…
- v1.4.02021-11-19M3Query: Add write endpoint support for M3-Map-Tags-JSON header in InfluxDB path (#3816)
Thanos
- v0.42.42026-07-30Had to do another version release due to broken base image SHAs. No changes.
- v0.42.32026-07-29Fixes a small bug - like before now Receive on shutdown creates a new block and uploads it.
- v0.42.22026-07-17Had to do another version release due to broken base image SHAs. No changes.
- v0.42.12026-07-16This change fixes a small issue regarding timeouts in the Shipper component in the Receiver - we've accidentally set th…
- v0.42.02026-07-08The biggest new things in this release are, I think, Receive component's improvements regarding tenant's lifecycle hand…
M3
unsigned The latest release, v1.6.0, carries no signature GitHub could verify.
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Thanos
✓ signed The latest release, v0.42.4, carries a signature GitHub verified.
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