- Qt 6.9
- Qt Qml
- QML Lint Warning and Errors
- Deprecated
- Qt 6.9.2 Reference Documentation

# Deprecated

This warning category is spelled `[deprecated]` by qmllint.

## Deprecated binding or type

### What happened?

A deprecated type was instantiated, a deprecated property was used or a deprecated method was called.

### Why is this bad?

Types, properties and methods can be deprecated for different reasons, please refer to the documentation of the deprecated item to find out why they were deprecated.

You can fix the deprecation warning by following the advice on the deprecation notice in the documentation of the deprecated item.