Sage is notifying end users of payroll tax table update 2/28/2018 - the KB does not appear to have the proper date updated. This was discussed a couple days ago and a customer just sent me the email that they received from Sage. Just a heads-up that your payroll customers are probably receiving notification from Sage.
https://support.na.sage.com/selfservice/viewdocument.do?noCount=true&externalId=88047&sliceId=1&cmd=displayKC&dialogID=398213&docType=kc&isLoadPublishedVer=&stateId=398214&docTypeID=DT_DOWNLOAD_1&ViewedDocsListHelper=com.kanisa.apps.common.BaseViewedDocsListHelperImpl