Questions on IKEA Tradfri Light Bulb Firmware

I am looking into updating my IKEA Tradfri lightbulbs’ firmware.

I currently use three types of bulbs:

  1. E27 600lm, dimmable colour and white spectrum (cws) opal white LED1624G9 - Zigbee ID: TRADFRI bulb E27 CWS opal 600lm
  2. E27 1000 lumen, dimmable white spectrum (ws) opal white - LED1732G11 - Zigbee ID: TRADFRI bulb E27 WS opal 1000lm
  3. E27 806 lumen, dimmable, warm white - LED1836G9 - Zigbee ID: TRADFRI bulb E27 WW 806lm

I found two relevant links:

I have two questions:

Question 1: How can I figure out if a firmware upgrade would bring any benefit; where can I read release notes of specific firmware versions?

The above release notes do not specify much about what a firmware version includes. Example:

Release Version: 1.13.0
29th June 2020
WS2.0 OPAL (V-2.0.029).

=> What does this firmware version add?

Question 2: How can I map IKEA Tradfri model numbers to firmware filenames?

With some guess-work, I mapped the first two bulb models to the below filenames which I found in the above-mentioned JSON list. I cannot find a good match for my third model bulb though. Can anyone give some advice around this?

  1. http://fw.ota.homesmart.ikea.net/global/GW1.0/01.11.051/bin/10035515-TRADFRI-bulb-cws-1.3.013.ota.ota.signed
  2. http://fw.ota.homesmart.ikea.net/global/GW1.0/01.11.051/bin/159695-2.1-TRADFRI-bulb-ws-1000lm-2.3.050.ota.ota.signed
  3. ???

Hello,

I have roughly the same questions. Did you find an answer ?

I did not.

Are you using ZHA?
seems like ZHA supports OTA FIRMWARE UPDATES for Ikea?

see https://www.home-assistant.io/integrations/zha#ota-firmware-updates

Are you able to use all features of the different light bulbs (like the 9 colors of the 600 lm bulb)?

Slightly off-topic question. Could someone tell me if IKEA Trådfri zigbee light bulbs works with ZHA integration using a Sonoff Zigbee bridge flashed with Tasmota and EmberZNet firmware?

Also having the same question. There are some pairing bugs on the Tradfri lights, but I don’t know if the firmware updates fix them or if they have side effects. Any updates?