What is the latest Product Update for Sage 300 Version 2021?

SUGGESTED

There was an email from Sage circulated recently to all Sage 300 customers that says:

Effective October 1, 2022, Microsoft® will disable Basic Authentication for email services. If you are using Microsoft online email services and already using Sage 300 version 2020.8, 2021.8, or 2022.2, then you are fine!

Is 2021.8 a typo?

I checked the Sage 300 Product download page at:  

https://support.na.sage.com/selfservice/viewdocument.do?noCount=true&externalId=45415&sliceId=1&msid=MS_Customer&bbid=MSRecommendation970&isDocLink=true&cmd=&type=Document&ViewedDocsListHelper=com.kanisa.apps.common.BaseViewedDocsListHelperImpl

and it only has Product Update 5 for Version 2021 available for download and when I read the Release Notes, it started with the changes with Product Update 6.  I don't see a download link to Product Update 6.

So what is the latest PU for Version 2021?  Is it PU 8 (as per Sage email)?  PU5 (from download page) or PU6 (from the Release Note of PU5)?