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Package Compatibility
BL Choy edited this page Feb 2, 2023
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The following table shows the versions of IWXXM and its individual packages (e.g. METAR/SPECI) and their relationships to ICAO Annex 3 requirements. If more than one version are indicated for an IWXXM report, it means the information model of the report has not been changed across the versions and either one of them can be used. After IWXXM 3.0, a new version scheme has been adopted in which individual package will maintain its own version number instead of inheriting the version number from IWXXM. This eliminates the need to advance the version number of a package with no apparent change with its schema.
| IWXXM Version | METAR/SPECI | TAF | SIGMET | AIRMET | TCA | VAA | SWA | WAFS SIGWX F/C | Requirements |
|---|---|---|---|---|---|---|---|---|---|
| 1.1.0 | 1.1.0 | 1.1.0 | 1.1.0 | N/A | N/A | N/A | N/A | N/A | Am76 |
| 2.1.0 | 2.1.0 | 2.1.0 | 2.1.0 | 2.1.0 | 2.1.0 | 2.1.0 | N/A | N/A | Am77 |
| 3.0.0 | 3.0.0 | 3.0.0 | 3.0.0 | 3.0.0 | 3.0.0 | 3.0.0 | 3.0.0 | N/A | Am78 |
| 2021-2 | 3.1.0 | 3.0.1 | 4.0.0 | 3.1.0 | 3.1.0 | 3.1.0 | 3.0.1 | 1.0.0 | Am79 + Am80 |
| 2023-1 (To be submitted for FT approval) |
3.1.0 | 3.0.1 | 4.0.1 | 3.1.0 | 3.1.0 | 3.1.0 | 3.0.1 | 1.1.0 | Am79 + Am80 |