16. Latest Known Quartus Prime Software Issues - Information about known issues that affect Quartus Prime Pro Edition Version 26.1 is available in the Altera FPGA Knowledge Base. - 2026-04-06

Quartus Prime Pro Edition Version 26.1 Software and Device Support Release Notes

Version
26.1
Information about known issues that affect Quartus® Prime Pro Edition Version 26.1 is available in the Altera FPGA Knowledge Base.

For the latest information about issues that affect Quartus® Prime Pro Edition Version 26.1, review the FPGA Knowledge Base articles that apply to Quartus® Prime Pro Edition Version 26.1 .

Table 43.  Important Known Issues Affecting Quartus® Prime Pro Edition Version 26.1
Description Workaround
The Altera® AXI3 bus functional model (BFM) does not support VHDL simulation. Only Verilog simulation is currently supported. None.

Verilog simulation is planned to be added to a future release of the Altera® AXI3 BFM.

FPGA AI Suite Version 2026.1 is not available from the Quartus® Prime Pro Edition Version 26.1 installer. Download FPGA AI Suite Version 2026.1 from the Altera® Download Center when it becomes available and install it separately.

You can find known issue information for previous versions of the Quartus® Prime software on the FPGA Knowledge Base web page.

Information about known software issues that affect previous versions of the Quartus® II software is available on the Quartus® Prime and Quartus II Software Support web page.

Information about issues affecting the Intel® FPGA IP Library is available in the release notes for each IP. You can find the IP release notes on the Altera® Documentation & Resources Center web page.