Mongo has had multi-document transactions since 2018 (version 4.0), and joins (the $lookup aggregation pipeline stage) since 2015 (version 3.2) [1]. [1] https:

Mongo has had multi-document transactions since 2018 (version 4.0), and joins (the $lookup aggregation pipeline stage) since 2015 (version 3.2) [1]. [1] https://www.mongodb.com/evolved#mdbfourzero https://www.mongodb.com/evolved#mdbfourzero