[Release] sdk/resourcemanager/iothub/armiothub/1.4.0-beta.1 (#25592)

* [Release] sdk/resourcemanager/iothub/armiothub/1.4.0-beta.1 generation from spec commit: 1d3ac611f503e05650fb85520582b06140d2599e

* fix test

* reported error NoRegisteredProviderFound

* fix test

Author: jliusan

sdk/resourcemanager/iothub/armiothub/CHANGELOG.md

@@ -1,5 +1,22 @@
 # Release History
 
+## 1.4.0-beta.1 (2025-11-11)
+### Features Added
+
+- New value `IotHubSKUGEN2` added to enum type `IotHubSKU`
+- New value `IotHubSKUTierGeneration2` added to enum type `IotHubSKUTier`
+- New value `RoutingSourceDigitalTwinChangeEvents`, `RoutingSourceMqttBrokerMessages` added to enum type `RoutingSource`
+- New enum type `IPVersion` with values `IPVersionIPv4`, `IPVersionIPv4IPv6`, `IPVersionIPv6`
+- New struct `DeviceRegistry`
+- New struct `EncryptionPropertiesDescription`
+- New struct `KeyVaultKeyProperties`
+- New struct `PropertiesDeviceStreams`
+- New struct `RootCertificateProperties`
+- New field `PolicyResourceID` in struct `CertificateProperties`
+- New field `PolicyResourceID` in struct `CertificatePropertiesWithNonce`
+- New field `DeviceRegistry`, `DeviceStreams`, `Encryption`, `IPVersion`, `RootCertificate` in struct `Properties`
+
+
 ## 1.3.0 (2023-11-24)
 ### Features Added
 

sdk/resourcemanager/iothub/armiothub/README.md

@@ -55,7 +55,7 @@ clientFactory, err := armiothub.NewClientFactory(<subscription ID>, cred, &optio
 A client groups a set of related APIs, providing access to its functionality. Create one or more clients to access the APIs you require using client factory.
 
 ```go
-client := clientFactory.NewResourceClient()
+client := clientFactory.NewCertificatesClient()
 ```
 
 ## Fakes

sdk/resourcemanager/iothub/armiothub/autorest.md

@@ -5,9 +5,9 @@
 ``` yaml
 azure-arm: true
 require:
-- https://github.com/Azure/azure-rest-api-specs/blob/32c178f2467f792a322f56174be244135d2c907f/specification/iothub/resource-manager/readme.md
-- https://github.com/Azure/azure-rest-api-specs/blob/32c178f2467f792a322f56174be244135d2c907f/specification/iothub/resource-manager/readme.go.md
+- https://github.com/Azure/azure-rest-api-specs/blob/1d3ac611f503e05650fb85520582b06140d2599e/specification/iothub/resource-manager/Microsoft.Devices/IoTHub/readme.md
+- https://github.com/Azure/azure-rest-api-specs/blob/1d3ac611f503e05650fb85520582b06140d2599e/specification/iothub/resource-manager/Microsoft.Devices/IoTHub/readme.go.md
 license-header: MICROSOFT_MIT_NO_VERSION
-module-version: 1.3.0
-tag: package-2023-06
+module-version: 1.4.0-beta.1
+tag: package-preview-2025-08
 ```