Sony WF-1000XM4 Version 2.0.0 is out! This software update adds simultaneous connection of 2 devices to the headphones : r/sony

Multipoint Update! Sony WF-1000XM4 Firmware 2.0.0 - ANC Affected? — Aaron x Loud and Wireless

Drivers and Software updates for WH-1000XM4

Sony WF-1000XM4 Version 2.0.0 is out! This software update adds simultaneous connection of 2 devices to the headphones : r/sony

Sony WF-1000XM4 earbuds on firmware 1.5.0? Wasn't 1.4.2 the latest firmware? : r/SonyHeadphones

Sony finally adds Bluetooth Multipoint to the WF-1000XM4

The Walkman Blog: 2018

After multipoint upgrade for WF-1000XM4 battery life for right earbud is very short

Firmware Update to Version 2.0.0

Five-star Sony WF-1000XM4 wireless buds get the one missing feature