Here is the download link for Sage 100 ERP 2015 and product update 1. At the moment it is not working. I am guessing it should start working shortly.
https://support.na.sage.com/selfservice/viewdocument.do?noCount=true&externalId=60765&sliceId=1&cmd=¤tmsID=MS_Customer&docLink=true&isDocLink=true&languageId=&ViewedDocsListHelper=com.kanisa.apps.common.BaseViewedDocsListHelperImpl