As of OpenOCD version v0.11.0+ several general adapter commands have changed and as of v0.12.0-rc1 FTDI commands have changed, deprecating the older versions. This affects commands listed in the README. The deprecated commands used in Tigard's Openocd cfg files do continue to work on newer versions, but they will be phased out at some point.

Currently, the general adapter commands are up to date in the SWD config but not the JTAG config. Neither uses the current FTDI commands. Will submit a PR which fixes this shortly.