Added mention of specific version which introduced the new option

Author: KoenZomers

documentation/Connect-PnPOnline.md

@@ -306,7 +306,7 @@ Connect to SharePoint/Microsoft Graph using federated identity credentials in Gi
 Connect-PnPOnline -Url "https://contoso.sharepoint.com" -FederatedIdentity
 ```
 
-Connect to SharePoint/Microsoft Graph using federated identity credentials in Azure DevOps.
+Connect to SharePoint/Microsoft Graph using federated identity credentials in Azure DevOps. This option is available from version 3.1.51-nightly onwards.
 
 ## PARAMETERS
 
@@ -881,6 +881,8 @@ Accept wildcard characters: False
 
 Connects using Federated Identity. For more information on this, you can visit [this link](https://learn.microsoft.com/en-us/entra/workload-id/workload-identity-federation-create-trust?pivots=identity-wif-apps-methods-rest).
 
+This option is available from version 3.1.51-nightly onwards.
+
 ```yaml
 Type: SwitchParameter
 Parameter Sets: Federated Identity