The hotfix restored default menus ( allegro.men ). Fix:

Expressions can now be used instead of static values for modeling, offering greater flexibility in design.

Hotfixes are essential maintenance releases for enterprise EDA (Electronic Design Automation) software. They are cumulative, meaning the latest hotfix contains all previous fixes and feature updates.

The Ultimate Guide to Cadence Allegro and OrCAD 17.4 Hotfixes

: Expanded tolerance for third-party SPICE models and sub-circuits. How to Check Your Current OrCAD 17.4 Hotfix Version

Do you use linked to an external database?