Release Notes
This page documents significant changes in driver releases.
It is not an exhaustive list of changes and generally does not enumerate bug fixes; please consult the releases page on GitHub for a more comprehensive list of changes in each version of the driver and the releases page in Jira for the complete list of changes, including those internal to the driver and its test suite.
2.21
This release includes the following new features:
Adds support for the Client-Side Operations Timeout (CSOT) feature, which unifies most timeout-related options under a single
timeout_msoption.Adds support for MongoDB Server version 8.0.
Adds support for range v2 queries with Queryable Encryption, including a new
trim_factorparameter. For more information about Queryable Encryption, see Queryable Encryption in the MongoDB Server manual.
2.20
This release includes the following new features:
Support for Ruby 2.5 and 2.6 has been discontinued. Support for Ruby 2.7 and JRuby 9.2 has been deprecated, and will be discontinued in the next minor driver version. Support for JRuby 9.4 has been added.
Support for the newly-released Ruby-BSON version 5.0.
Connection strings no longer require a slash between the hosts and the options. E.g., "mongodb://example.com?w=1" and "mongodb://example.com/?w=1" are both valid connection strings now.
Container runtime and orchestration metadata for the client environment are now sent to the server for analytics purposes.
A warning message is now written to the log when the host is detected to be a CosmosDB (Azure) or DocumentDB (Amazon) instance.
When attempting a retry of a read or write operation in a sharded topology, the retry will be attempted on a different mongos instance, if possible.