which is the latest C cross compiler for u-boot2019 and linux kernel?

i want to compile u-boot2019,but it is for gcc6.0+.

*** Your GCC is older than 6.0 and is not supported

I can only search for"arm-none-linux-gnueabi-gcc" and "arm-linux-gnueabihf-gcc" for 2014.

Thanks in advance！