Hi there,
Incase you missed it and now it’s rolled into the Newest nRF SDK_3.2.1
along with new tools in the Desktop suite…
So, the Connectivity Standards Alliance (Alliance) announces the release of Matter 1.5, expanding the standard with additional high-impact device categories and use cases, including support for cameras, closures, soil sensors, and new energy management capabilities. This update continues Matter’s mission to simplify smart home development, strengthen interoperability, and create richer, more sustainable connected experiences for consumers and developers alike.
Read the full Press Release
With the New Xiao ESP32C5 release it’s just a nasty learning curve to use the ESP-IDF for matter dev IMO. So, The Vikings are trying to lower the hurdle to gain access. Seeed is Bringing the Hardware part in Spades 
Get some Xiao nRF54L15 parts in hand and get on the matter Network.
They sold out of ALL the New Xiao’s on the first sale day… WOW!
HTH
GL 
PJ 