The DPG 15.6 Service Pack has now been released and uploaded to Nuance Network in all languages, and is ready to download now from network.nuance.com. This service pack release is applicable to all languages, and will upgrade all current v15.5 customers using any version of the product (DPG, DLG).
Please note that the full VLA build release for DPG v15.6 will only be available in English and German. Therefore, existing DPG customers in languages other than ENX/DEU will first have to download v15.5 and then use this service pack to be upgraded to 15.6. I will keep you all updated once the DPG 15.6 full build becomes available.