Official Input System 1.6.1 released

Hello Input System users!

The Input Team would like to announce that Input System 1.6.1 has been released !

We would like to highlight the improvements in this version:
- The `InputSystem.customBindingPathValidators` interface was added to allow showing warnings in the `InputAsset` Editor for specific InputBindings and drawing custom UI in the properties panel.
- A `displayIndex` field was added to the Touch struct to expose the index of the display that was touched.
This version also includes the addition of an internal subsystem for routing input to the UI interface, predominantly for the UI Toolkit.

More details about all the improvements and fixes are in the package changelog.

Input system 1.6.1 is available starting from:

• 2021.3.27f1
• 2022.3.1f1
• 2023.1.0b20

Or alternatively, you can manually specify "1.6.1" in your manifest.json.

And if it's your first time hearing about the Input System you can find an introduction in the manual.