The latest version (IEC 60437:2023 / EN IEC 60437:2024) introduced several technical revisions:
A: No, but you must check the IEC website for "corrigenda" (error corrections). The 2019 CSV version is current as of this writing. iec 60437 pdf
: The insulator must be mounted in a way that simulates its actual service position (e.g., with specific hardware or conductors). The RIV Test Procedure : The latest version (IEC 60437:2023 / EN IEC