Model-Based Systems Engineering (MBSE) has become a reference method for managing the ever-increasing complexity in aerospace systems, promoting consistency, traceability, and early validation of architectures. The standard language used in this approach is SysML, the de-facto standard for MBSE activities, and SysML v2 has been officially released recently, as it provides a significant evolution compared to SysML v1. The new language guaranties a more precise semantics and a native textual representation that is much more interoperable and convenient. Unfortunately, SysML v2 is not backward-compatible by default, and the transition process from SysML v1 to SysML v2 is currently described only at a very high level in the standard, leaving the implementation details to tool developers, with a potential loss of openness and standardization.