A minor update for the Switch and Wii U version of Minecraft would be going live later today. The update will bring the Egyptian Mythology mash-up pack and fix a few known bugs for the game. You can take a look at the patch notes below:

Change log for Patch 15 – May 29th 2018

• Added Egyptian Mythology Mash-Up Pack
• Fix for Minecarts being destroyed by Lava
• Fix for MCCE #7207 – Some Skins are Buggy
• Optimized Beacons: This will allow a larger number of beacons to be placed before any noticeable fps decrease.