@bladerino 

Hi， You could see the firmware release note here:

https://www.tp-link.com/us/support/download/deco-x5700/v1/#Firmware

• 1.1.4

Modifications and Bug fixes:
1. Fixed satellite flashing red issue, improved backhaul stability. 

• 1.1.3

Modifications and Bug fixes:
1. Improved overall stability.
2. Fixed the issue that address reservation sometimes doesn't take effect.
3. Fixed slow upload speed issue with Verizon Fios fiber line. 
4. Improved the Network Optimization feature. 

1.1.2/1.1.3/1.1.4 are small versions upgraded, and normally would not add many advanced features, mainly focusing on improving the network performance.

Best regards.