References to Amdnn are amendments to Annex 3 to the Convention on International Air Navigation.

Development of iwxm 3.0

iwxxm 3.0 will address the requirements of Amd 78. Early drafts will be made available as release candidates for application developers to test, and feed back from those release candidates will be used to finalize the release candidate that will be issued for formal consultation in December 2018. iwxxm 3.0 is planned to be approved in May 2019, with an operational date in November 2019.

Indicative schedule for releases of iwxxm beyond 3.0

Date	Driver	Release
Nov 2019	Amd 78	iwxxm 3.0
Nov 2021	Amd 79	iwxxm 4.0 (or iwxxm 3.1 if iwxxm 3.0 permits backwards compatibility of release) Initial support for SWIM environment
Nov 2023	Amd 80	iwxxm 4.1 (or iwxxm 3.2 if iwxxm 3.0 permits backwards compatibility of releases)
Nov 2025	Amd 81	iwxxm 5.0 (or 4.0). Compatible with SWIM "data centricity" requirements