The current versions of Calcurate are: 2023 version 4.2 and 2017 version 10.5 (where do I find the version number?)
Calcurate Update March 2025 – City of London Supplements, Helix Import
Calcurate (version 4.1) is now available, view or download the pdf – Release Note
Your new version of Calcurate can be downloaded/installed from the link in your update email.