4.1.1. Nios V Processor Reference Manual Archives
For the latest and previous versions of this user guide, refer to Nios® V Processor Reference Manual. If an IP or software version is not listed, the user guide for the previous IP or software version applies.
IP versions are the same as the Intel® Quartus® Prime Design Suite software versions up to v19.1. From Intel® Quartus® Prime Design Suite software version 19.2 or later, IP cores have a new IP versioning scheme.