MongoDB has recently announced the ability to handle ACID transactions in their newest release, v4.0, which supports multi-document ACID transactions. This is a significant development for the database, as it allows for more reliable and consistent data management. Fauna, another NoSQL database provider, was designed from the ground up to be able to do distributed transactions, while MongoDB added this capability to their "legacy" database. The announcement has sparked interest in the developer community, with many wondering if MongoDB's transactional capability will be widely adopted. However, there are also concerns that the initial scope for transactions may be limited, and that the implementation of transactions may drive some bizarre things within the product's core. Fauna, on the other hand, offers strict ACID compliance and high performance and global scalability, making it a viable alternative for mission-critical transactional applications.