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Jun 2026Clear ×Project: Open Policy Agent (OPA)Clear ×

Open Policy Agent (OPA)v1.18.0SecurityJun 25, 2026

CHECK 1OTHER 22View full analysis

A release with a breaking change to the outbound User-Agent value, along with restored automatic GOMAXPROCS handling and new automatic GOMEMLIMIT support. It also improves formatting and coverage behavior, corrects compiler and runtime defects, and updates dependencies.

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breakingThe User-Agent header format
Applies if you configure server-side log filters or WAF rules that exact-match the old string.
The User-Agent header now uses Open-Policy-Agent/<version> (<os>, <arch>) in OPA v1.18.0. Server-side log filters or WAF rules that exact-match the old string need to be updated.

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