What must the target controller's revision correspond to in relation to a controller project version?

The target controller's revision must correspond to the major firmware version of the controller project. This is crucial because major firmware updates typically introduce significant changes and enhancements to system capabilities, functionalities, and architecture. Ensuring that the project is compatible with the major firmware also means that the necessary features and improvements have been integrated into the project, allowing for proper functionality and performance.

Using the right major firmware version is important for avoiding potential incompatibilities that could result from trying to run a project on a controller with a different major firmware. This facilitates a more stable and reliable operation, ensuring that the project behaves as intended.

Other types of updates, such as minor firmware, service packs, or supplemental updates, often bring in smaller changes, bug fixes, or additional features that do not fundamentally alter the core system. While these updates are important, they do not carry the same level of requirement for compatibility with the project's major version as the major firmware does. Thus, having the correct major firmware revision is key to a successful deployment of controller projects.