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Driver Compatibility
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MongoDB Compatibility
The following compatibility table specifies the recommended version(s) of the MongoDB Ruby driver for use with a specific version of MongoDB. Except when indicated, the specified driver versions expose or take advantage of the features added in the corresponding server versions.
MongoDB server releases are generally backwards compatible, meaning a particular version of the driver will generally work with newer versions of the server but may not take advantage of the functionality released in the newer version of the server.
Important
MongoDB ensures compatibility between the MongoDB Server and the drivers for three years after the server version's end of life (EOL) date. To learn more about the MongoDB release and EOL dates, see MongoDB Software Lifecycle Schedules.
The first column lists the driver versions.“D” in other columns means support for that MongoDB version is deprecated and will be removed in a future driver version.
Ruby Driver | MongoDB 7.0 | MongoDB 6.0 | MongoDB 5.0 | MongoDB 4.4 | MongoDB 4.2 | MongoDB 4.0 | MongoDB 3.6 | MongoDB 3.4 | MongoDB 3.2 | MongoDB 3.0 | MongoDB 2.6 |
|---|---|---|---|---|---|---|---|---|---|---|---|
2.20 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||
2.19 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||
2.18 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||||
2.17 | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||
2.16 | ✓ | ✓ | ✓ | ✓ | ✓ | D | D | D | D | ||
2.15 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||
2.14 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||
2.13 | ✓ [1] | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||
2.12 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||
2.11 | ✓ [3] | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||
2.10 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||||
2.9 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||||
2.8 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||||
2.7 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||||
2.6 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |||||
2.5 | ✓ | ✓ | ✓ | ✓ | ✓ |
| [1] | OCSP verification is implemented as of driver version 2.14. |
| [2] | Polling of SRV records in sharded topologies is implemented as of driver version 2.11. |
| [3] | (1, 2) Client-side encryption is implemented as of driver version 2.12. |
The driver does not support older versions of MongoDB.
Ruby Compatibility
The following compatibility table specifies the versions of Ruby supported by the various versions of the MongoDB Ruby driver.
The first column lists the driver versions. "D" in a column means support for that Ruby version is deprecated.
Ruby Driver | Ruby 3.2 | Ruby 3.1 | Ruby 3.0 | Ruby 2.7 | Ruby 2.6 | Ruby 2.5 | Ruby 2.4 | Ruby 2.3 | Ruby 2.2 | Ruby 2.1 | Ruby 2.0 | Ruby 1.9 | JRuby 9.4 | JRuby 9.3 | JRuby 9.2 | JRuby 9.1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2.20 | ✓ | ✓ | ✓ | D | ✓ | ✓ | D | |||||||||
2.19 | ✓ | ✓ | ✓ | ✓ | D | D | ✓ | ✓ | ||||||||
2.18 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||||
2.17 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||||||
2.16 | ✓ | ✓ | ✓ | ✓ | D | ✓ | ||||||||||
2.15 | ✓ | ✓ | ✓ | ✓ | D | D | ✓ | |||||||||
2.14 | ✓ | ✓ | ✓ | D | D | ✓ | ||||||||||
2.13 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||||||
2.12 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||||||
2.11 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||||||
2.10 | ✓ | ✓ | ✓ | ✓ | ✓ | D | D | D | D | ✓ | ✓ | |||||
2.9 | ✓ | ✓ | ✓ | ✓ | D | D | D | D | ✓ | ✓ | ||||||
2.8 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||
2.7 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||
2.6 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
The driver does not support older versions of Ruby.
Rails/ActiveSupport Compatibility
The Ruby driver does not depend on ActiveSupport. However, when an application uses ActiveSupport or Ruby on Rails, it must load the driver's ActiveSupport compatibility code for behavior like time serialization to be correct:
require 'mongo' require 'mongo/active_support'
Applications using Mongoid 7.0.6 or newer do not need to explicitly load the driver's ActiveSupport code, since Mongoid automatically does so.
TLS/SSL Compatibility
The driver will utilize the protocols supported by the underlying Ruby
openssl extension. In turn, the openssl extension generally exposes
the functionality that exists in the operating system's OpenSSL library.
Industry best practices, and some regulations, require the use of TLS 1.1 or newer. Some operating systems or versions may not provide an OpenSSL version new enough to support these TLS versions.
Users of macOS older than 10.13 (High Sierra) will need to install Ruby from rvm, homebrew, macports, or another similar source. See installation information on ruby-lang.org for more options.
Users of Linux or other non-macOS Unix can check their OpenSSL version as follows:
openssl version
If the version number is less than 1.0.1 support for TLS 1.1 or newer is not available. Contact your operating system vendor for a solution or upgrade to a newer distribution.
You can check your Ruby interpreter by executing the following command:
ruby -e "require 'net/http'; require 'json'; puts JSON.parse(Net::HTTP.get(URI('https://www.howsmyssl.com/a/check')))['tls_version']"
You should see "TLS 1.X" where X is >= 1.
You can read more about TLS versions and their security implications here.
Atlas Compatibility
Driver version 2.6.1 or higher is recommended when using MongoDB Atlas, as this version has significant performance improvements when TLS connections are used, and all Atlas connections use TLS.
When running on JRuby and connecting to Atlas Free Tier, driver version 2.6.4 or higher and Java 8 or higher are required.
mongo_kerberos Compatibility
The following compatibility table specifies the version(s) of the mongo_kerberos library to use with a specific version of the driver.
Ruby Driver | mongo_kerberos 2.1 |
|---|---|
2.7 - 2.19 | ✓ |
JRuby and Kerberos Authentication
If the mongo_kerberos gem is used for Kerberos authentication with JRuby, the the JVM system
property "sun.security.jgss.native" to will be set to "true" in order to facilitate the use of
the system cache of TGTs (e.g. TGTs obtained with kinit). Any other use of the JGSS library
will also be affected by this setting, meaning any TGTs in the system cache will be available for
obtaining Kerberos credentials as well.
JRuby and TLS Connections
Due to JRuby limitations:
ECDSA server certificates are not supported.
OCSP endpoint checking is not performed.