dd-wrt forum post ---> https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=319846

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Linksys EA8500
DD-WRTv3.0-r39830M kongat (05/23/19)
Linux 4.9.177 #411 SMP Tue May 23 15:35:21 CEST 2019 armv7l

updated NEW ath10k_pci firmware ver 10.4.1.00030-1 -- same as new BS builds
same as previous unbound Version 1.9.0 --- BS builds have unbound 1.9.1
same as previous Dnsmasq version 2.80-40-gc406fd6 --- BS builds just have Dnsmasq 2.8.0

'iw phy0 info' or 'iw phy1 info' still only shows:

Supported interface modes: 
       * managed 
       * AP 
       * AP/VLAN 
       * monitor 
       * mesh point
no TDMA on Mr. K build.