Are you talking tax tables? Those came out 9/20. Product updates - nothing new since 4.
Can you access this without being logged in?
https://partners.sagenorthamerica.com/irj/go/km/docs/sageKM/Sage%20MAS%2090%20and%20200/Gated%20Customers/Browsable/Version%204.50%20Product%20Updates%20and%20Service%20Packs%20Page%20for%20Sage%20100%20ERP.html