What's New in Virtuoso Unified Custom Constraints

This topic provides a high-level overview of the new features in the IC23.1 base release and subsequent ISR releases.

IC23.1 ISR1

New Constraint SKILL Functions

The following SKILL functions have been added to let you manage various tasks:

• The cstGetDefaultConstraintGroupNameById SKILL function lets you return the default constraint group name by cellview and constraint group ID.
• The cstGetDefaultConstraintGroupIdByName SKILL function lets you return the constraint group Id that is used by the default constraint group name.

Enhanced Constraint SKILL Function

A new argument fallBackToWireCG has been added to the cstGetDefaultConstraintGroupName SKILL API for userWire constraint group.