We have just rolled out support for MongoDB 3.2 which provides many new features such as new storage engines, partial indexes, readConcern option which allows clients to choose a level of isolation for their reads and many others.

Our deployment consists of three member replica set – primary, secondary and a hidden backup replica member which is used to regularly backup the data.

MongoDB 3.2 is selected by default for new apps in Europe. Apps in US will receive MongoDB upgrade shortly.