TWRP-3.4.0B-0209 for older roms like you mentioned V11.0.15.0.QGHCNXM.
Any futher updates than 11.0.15.0 must use the newest recovery and recommend flashing it through fastboot, then update to any newer ROM than the one mentioned.
Edit!
Forgot to mention that I have k30 5G, you have to find...