# aviationforecast version 1.6 is deprecated

Calls to /aviationforecast/1.6 on MET Norway Weather API stopped working on March 16, 2026.

## What to use instead

This uses the standard TAC format instead of XML.

- API: MET Norway Weather API (api.met.no)
- Kind: Version retirement
- Announced: January 13, 2026
- Takes effect: March 16, 2026
- Calls after that day: fail
- Calls it hits: `/aviationforecast/1.6`
- Source: [Changelog](https://api.met.no/feed/news)
- Verified: November 6, 2026, against MET Norway Weather API's own pages
- Page: https://www.okapi.bot/providers/met/breaking-changes/aviationforecast-version-1-6-is-deprecated/

## MET Norway Weather API's words

> Version 1.6 is now deprecated and will expire on 16 March 2026.

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent