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APEX, New APRS Protocol, New Paradigm, New Software
TL;DR APEX (APrs EXtended) is a backwards-compatible evolution of the APRS protocol that adds cross-band routing, preemptive routing, and a Python reference implementation, with a roadmap toward smart routing, geographic routing, and delay-tolerant networks.
APEX stands for "APrs EXtended"; It will be a new protocol which expands on and fixes most of the issues in the older APRS protocol while still remaining backwards compatible.
APEX defines both a new protocol and a new paradigm.

Read more here:
https://jeffreyfreeman.me/blog/apex-new-aprs-protocol-new-paradigm-new-software/

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