In rev.H, the DE1-SoC adds some features for supporting RISC-V application such as QSPI flash, UART to USB for FPGA and JTAG switch. Below are the change list for rev. G to rev. H.
Adding JTAG switch(SW17) for switch JTAG chain to FPGA JTAG pin or FPGA I/O(for RISC-V application).