Ubuntu will be adopting ntpd-rs as the default time sync client/server if all goes according to plan for release 27.04 (~2027). For most this means replacing chrony.

https://discourse.ubuntu.com/t/ntpd-rs-its-about-time/79154/1

#NTP

Ntpd-rs: it's about time!

I am thrilled to announce the next target in our campaign to replace core system utilities with memory-safe Rust rewrites in Ubuntu. In upcoming releases, Ubuntu will be adopting ntpd-rs as the default time synchronization client and server, eventually replacing chrony, linuxptp and with any luck, gpsd for time syncing use-cases. ntpd-rs is a full-featured implementation of the Network Time Protocol (NTP), written entirely in Rust. Maintained by the Trifecta Tech Foundation as part of Project P...

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