Go for network security: why (and how) we switched to net/netip

▤ Summary

This article explains why the team behind Netopia moved its Go networking code from net to net/netip. It focuses on the security and performance drawbacks of the older approach, including mutable IP handling and unnecessary allocations. The author shows how netip provides immutable address types, clearer parsing, and safer prefix checks. The piece also gives practical examples of parsing IPs and prefixes and highlights how the newer package reduces mistakes in network-related code.

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