[Complete release notes including VSS-Tools changes](https://github.com/COVESA/vehicle_signal_specification/releases/tag/v3.0)
Overlay Support
Overlays introduced to allow customization of VSS. See [documentation](https://covesa.github.io/vehicle_signal_specification/rule_set/overlay/).
See [vss-tools documentation](https://github.com/COVESA/vss-tools/blob/master/docs/vspec.md) on how to include overlays when transforming VSS.