In the Pega healthcare AGM framework , pega has provided CDAG and ODAG reports. We are currently using pega 8.7 version. My understanding is that the report guidelines are changed by CMS once or twice a year, eg adding new columns to the existing report or may be a new report. 

How often is pega updating those reports and also how would an existing application like ours would get notified of the new changes in the report.