Merge pull request #225661 from vimeht/main

Update limits and subgroup texts

Author: prmerger-automator[bot]

articles/iot-hub-device-update/device-update-groups.md

@@ -64,9 +64,17 @@ Below are the devices and the possible groups that can be created for them.
 | Device1 | Group1                        |
 | Device2 | Group1                        |
 | Device3 | Group2                        |
-| Device4 | DefaultGroup1-(deviceClassId) |
+| Device4 | DefaultGroup                  |
 
 
+## Subgroups
+
+All user-created groups as well as default groups are automatically sub-categorized into one or more subgroups to allow administrators to manage heterogeneous devices in an organized and efficient manner, by providing a way to perform updates on a set of devices that share compatibility properties. Each device class within a group maps to one subgroup. Devices are added to a subgroup based on their compatibility properties and the Device Update PnP model ID, which together comprise a device class. 
+
+A group can have one or more best available update, one for each subgroup it contains. 
+
+[Learn more](./device-update-configuration-file.md) about setting compatibility properties on the Device Update agent
+
 ## Next steps
 
 [Create a device group](./create-update-group.md)

includes/device-update-for-iot-hub-limits.md

@@ -27,8 +27,8 @@ This table provides the various limits associated with the operations within Dev
 | Number of devices per instance | 1 Million | 10 | Yes |
 | Number of device groups per instance | 100 | 10 | Yes |
 | Number of device classes per instance | 80 | 10 | Yes |
-| Number of active deployments per instance | 250 | 10 | No |
-| Number of total deployments per instance | 300 | 20 | No |
+| Number of active deployments per instance | 50 (includes 1 reserved deployment for Cancels) | 5 (includes 1 reserved deployment for Cancels) | Yes |
+| Number of total deployments per instance | 100 | 20 | No |
 | Number of update providers per instance | 25 | 2 | No |
 | Number of update names per provider per instance | 25 | 2 | No |
 | Number of update versions per update provider and name per instance | 100 | 5 | No |