* [cidr-tools 12.0.0](https://github.com/silverwind/cidr-tools) – Utilities for manipulating and analyzing IPv4 and IPv6 CIDR networks.

* [bart v0.27.1](https://github.com/gaissmai/bart) – Balanced routing-table implementation adapting Knuth's ART for significantly lower memory and faster IP-to-CIDR lookups.