A major Helium update will turn all current and any newly onboarded hotspots into Light Hotspots. For more information about what light hotspots are and why this update is happening please have a look at this blog post from Helium Light Hotspots Explained.
The Light Hotspot software(Gateway-rs) code release is the largest update to the Helium network since Validators and will be distributed to all Helium Hotspots on the network.
When is it happening?
The most current date this event will start to take place is on 5/11/2022. It's possible this date could change, so keep yourself up to date by following the Helium announcements channel in their discord.
Do I need to do anything?
There’s nothing you’ll need to do for your current hotspots or newly onboarded hotspots. Your hotspots should operate just the way they have or better after the update.
The only thing you’ll need to do is be patient! Since this is such a major update, there are higher chances that issues with the network may arise. If you are having any issues while the update is happening, please first check the official Bobcat or Helium discord for updates.