Quartus® Prime Pro Edition: Version 25.1 Software and Device Support Release Notes

ID 683706
Date 4/07/2025
Public

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1.2. Changes to Software Behavior

This section documents instances in which the behavior and default settings of the Quartus® Prime Pro Edition software have been changed from earlier releases of the Quartus® Prime Pro Edition software.
Quartus® Prime Pro Edition Version 25.1 introduces the following changes:
  • The default installation directory has changed:
    • On Windows operating systems, the default installation directory is now C:\altera_pro\<Quartus_version> .
    • On Linux operating systems, the default installation directory is now $HOME/altera_pro/Quartus_version .
  • Some parts of the Quartus® Prime Pro Edition suite have changed names:
    • Intel FPGA IP products are now Altera IP products.

      The names of individual IP products will be updated over time to reflect this new name.

    • Ashling* RiscFree* IDE for Intel FPGA is now Ashling* RiscFree* IDE for Altera.
    • DSP Builder for Intel FPGAs is now DSP Builder.
    • Intel FPGA Power and Thermal Calculator is now Power and Thermal Calculator.
  • For simulation with Synopsys* VCS*, the " VCS MX " tool flow is now referred to as the " VCS (3-step) flow ". The " VCS " tool flow is now referred to as " VCS (2-step) flow ".
For a list of all the default assignment settings for the latest version of the Quartus® Prime software, refer to the Quartus® Prime Default Settings File (.qdf):
  • Linux* operating systems: <Quartus Prime installation directory>/quartus/linux64/assignment_defaults.qdf
  • Windows* operating systems: <Quartus Prime installation directory>/quartus/windows64/assignment_defaults.qdf