But is it worth it if they didn't change anything?
If you use spektrum, and absolutely need another channel, sure go for it.
But if you don't use many channels, and don't have many spektrum receivers and electronics,
id just forget about the spektrum and jump up to the NB4 from flysky. Its more...
https://www.amainhobbies.com/spektrum-rc-dx6c-6channel-dsmr-surface-radio-w-sr315-receiver-spm6125/p1538815
Its new. Thats all that I know about. Don't know much about Spektrum electronics so thats that.
Here is a RCDriver Online overview: