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Radar · Go · Archive · Week 49 · Dec 1 – 7, 2025

go1.25.5 released

Worth knowingtooling

What changed
The release includes two security fixes to the crypto/x509 package and bug fixes to the mime and os packages.
Production impact
The source does not say.
Try it
Run go env after installing the new release and verify that the GOROOT points to the 1.25.5 tree.
Source
go.dev/doc/devel/release#go1.25.5

Understand it, then run it

Go 1.25.5 adds two security fixes to the crypto/x509 package and bug fixes to the mime and os packages. If you use certificates or parse MIME data, the changes improve safety and reliability. No new APIs are introduced; the packages behave the same as before, just more securely. The update is a minor release, so upgrading is straightforward.

Written by gpt-oss-20b from the linked source · claims checked against the sources · archive, not individually reviewed