What were the notable Go updates?

net/netip: inline single-use Addr.string{4,6,4In6} methods.

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Go team inlines net/netip string methods for micro-optimization

By RepoJournal · Filed 06:01 UTC on May 18, 2026 · About Go

The Go standard library just got slightly faster with a focused refactor that eliminates redundant method calls in the networking stack.

The net/netip package merged a change that inlines three single-use string formatting methods directly into Addr.String [1]. This is the kind of surgical optimization that matters at scale: Addr.string4, Addr.string6, and Addr.string4In6 were each called exactly once, making them prime candidates for inlining. The move reduces function call overhead in a hot path that DNS resolvers, HTTP clients, and network monitoring tools hit constantly. It's a reminder that Go's standard library maintainers still sweat the small stuff, even as the ecosystem grows.

Action items

→ Monitor next Go release for performance improvements in net/netip golang/go [monitor]

References

[1] net/netip: inline single-use Addr.string{4,6,4In6} methods golang/go

Quick answers

What shipped in Go on May 18, 2026?: The Go standard library just got slightly faster with a focused refactor that eliminates redundant method calls in the networking stack. In total, 1 commits landed.
What were the notable Go updates?: net/netip: inline single-use Addr.string{4,6,4In6} methods.

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