One of the NoSQL databases used by most developers is MongoDB. Currently, the most recent version is 7.0, but I think there are many people still using 4.x.
MongoDB Release History
Version Release Year
7.0 2023~
6.0 2022~
5.0 2021~
4.4 2022~
4.2 2019~
4.0 2018~
February 29, 2024 is said to be the End Of Life (EOL) of MongoDB 4.4.
It is said that upgrading to 5.0 does not require application changes.
Main Features
Version 5.0
Stable API, designed to preserve application behavior through upgrades
Native time-series collections and clustered indexing
Windows functions and new temporal operators
Live resharding
Schema validation diagnostics
x509 certificte rotation
Resumable index builds
Version 6.0
New aggregation stages and operators, including $sortArray
Sharded $lookup and $graphlookup
Pre- and post- document images for change streams
Sharding improvements
Time series improvements including column compression, additional secondary index types, and more
File copy based initial sync and encrypted audit log (Enterprise)
Version 7.0
Queryable encryption
Better storage compression and optimization for time series collections
Compound wildcard indexes
User roles variable for aggregations
Improved query performance for grouping and reshaping documents, filtering and sorting documents, and working across collections
Upgrade Guide
https://www.mongodb.com/docs/manual/release-notes/5.0-upgrade-standalone/
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