The MongoDB Ruby team is pleased to announce versions 2.21.3 and 2.20.2 of the mongo gem - a pure-Ruby driver for connecting to, querying, and manipulating MongoDB databases. These are new patch releases in the 2.21.x and 2.20.x series of the MongoDB Ruby Driver.
Install this release using RubyGems via the command line as follows:
gem install -v 2.21.3 mongo
# or
gem install -v 2.20.2 mongo
Or simply add it to your Gemfile:
gem 'mongo', '2.21.3'
# or
gem 'mongo', '2.20.2'
Have any feedback? Click on through to MongoDB’s JIRA and open a new ticket to let us know what’s on your mind 
.