- Upgrade Go builder from 1.21.0 to 1.21.1, bringing security fixes.
- Bugfixes across components: vminsert enterprise URL parsing, armv5 binary build, vmselect returns proper 503 status, and vmalert group parameters handling.
- Maintain LTS support for the v1.87.x line with 12‑month maintenance guarantee.
v1.87.9
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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.