Below are the features are added in Azure AD Connect 1.1
- Reduction in the sync interval to keep your Azure AD in sync with AD on-premises more quickly. it has been reduced to 30 Minutes.it used to be 3 Hours in earlier versions.
- Ability to switch between sign-in methods through the wizard to enable faster pilots –
- Support for Domain and OU filtering within the wizard
- Automatic upgrade feature for Express settings customers.- Now you can upgrade from old version to new version with by updating like service pack to the Application
- Allow changing the user’s sign-in method after initial install.
- Device write-back.
- Directory extensions.
Also It is fixed the below issues identified in earlier version
- The verify DNS domains page didn’t always recognize the domains.
- Prompts for domain admin credentials when configuring ADFS .
- The on-premises AD accounts are not recognized by the installation wizard if located in a domain with a different DNS tree than the root domain.
For more details, please refer Microsoft Article.