MongoDB Atlas Update: M10 & More Cluster Availabilities on Azure | MongoDB Blog` There's now a wider range of Atlas instances on Azure, with dedicated M10 clusters starting from $78 per month. M10, M80, and M200 sizes of MongoDB clusters are available in all regions, offering best-value options. The latest hardware upgrade for Atlas on Azure has also led to price reductions of up to 32%, varying by region. This change was made without user notice, as part of the automatic maintenance process offered by Atlas. New features include maintenance timing controls and custom database roles, which can be found in the latest Atlas Mapped article.