Until someone ports them to ath79, they are not going to be updated or have snapshots built.
Edit: None of this should be new to anyone, even those not following the mailing lists. There was a "reprieve granted" over immediate removal of the ar71xx source entirely from master
. See also, for example
The three things that I am aware of that have held back certain boards from ath79 ports include:
- SPI-NAND -- required Linux 4.19 upstream framework
- "Raw" NAND drivers
- SoC-specific NAND drivers
- Mikrotik-specific functionality
The first one I understand intimately. The challenges of the other I haven't looked into (as I don't have those devices in hand).