- Added new command‑line flags (elasticsearch.version, insert.maxFieldsPerLine, storage.minFreeDiskSpaceBytes) and exposed metrics for data size, index size, and HTTP request duration on /metrics
- Implemented /insert/loki/ready health‑check endpoint and fixed several panic scenarios (idle write, background merge column overflow, missing data writes)
- Recommended upgrade to v0.4.1 due to a critical bug in v0.4.0
v0.4.0-victorialogs
Official VictoriaMetrics changelog summary with source attribution, release tags, and community reactions.
Track this VictoriaMetrics release note alongside related changelog updates, risky changes, and weekly digest signals from the developer community.
Verify the original release note
Every summary should remain traceable to the original changelog or release source.
Follow this in context
Turn this VictoriaMetrics release note into a weekly digest for the tools you actually use.
Create digestMore VictoriaMetrics changelog updates
Enable multitenancy via headers by default for vmselect, vminsert and vmagent (default flag changed to true), which may break existing URL patterns.
Upgrade Go builder to Go1.26.6, addressing security issues in the runtime.
Upgrade Go builder from 1.26.5 to 1.26.6 for security patches.