CC26X2R1 Source Routing?

I am in the process of transitioning a few dozen devices to zigbee2mqtt and have bought a CC26X2R1 as basis. At least for the CC2531 I has used for testing, I read that a source routing firmware should be used for larger installations. Is there anything like that for the CC26X2R1? Because the table on https://github.com/Koenkk/Z-Stack-firmware/tree/master/coordinator shows upper limits for both normal and source routes, which suggest there should be one. However, there doesn’t seem to be one in the repository…