portability; upward compatibility
Technical term used in IT and engineering contexts to describe the ability of data, software, or systems to be moved to a newer or different environment without loss of functionality. Often implies forward/upward compatibility.
This software has high portability and runs without issues even on the new OS.
We adopted a standard format to ensure data portability.
transitional
Rare usage describing something that serves as a bridge or intermediate stage between two states. Not common in everyday language; more often seen in technical or academic descriptions of processes.
This system was introduced temporarily as a transitional measure.
移植性 (portability) is often used in software engineering for cross-platform compatibility, whereas 移行性 emphasizes migration to a newer version or different system, often with a forward-compatible nuance.
Compound of 移行 (ikō, 'transition, migration') + 性 (-sei, '-ity, -ness'). The term is a modern technical coinage, likely influenced by English 'portability' and 'compatibility' in computing contexts.