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Compatibility

Ruby MongoDB Driver Compatibility

The following compatibility table specifies the versions of Ruby driver for MongoDB (the mongo gem) supported by the most recent patch releases of the specified Mongoid versions.

Note

Older versions of Mongoid within the same minor release may support older driver versions. For example, Mongoid 7.0.5 supports driver versions 2.5 and newer, whereas Mongoid 7.0.6 requires driver version 2.7 or newer.

Mongoid	Driver 2.17-2.10	Driver 2.9-2.7
7.5	✓
7.4	✓
7.3	✓
7.2	✓
7.1	✓	✓
7.0	✓	✓
6.4	✓	✓

Ruby Compatibility

The following compatibility table specifies the versions of Ruby interpreters supported by Mongoid. “D” in a column means support for that Ruby version is deprecated.

Mongoid	Ruby 3.1	Ruby 3.0	Ruby 2.7	Ruby 2.6	Ruby 2.5	Ruby 2.4	Ruby 2.3	Ruby 2.2	JRuby 9.2	JRuby 9.3
7.5	✓	✓	✓	✓	D				D	✓
7.4	✓	✓	✓	✓	✓				✓
7.3	✓ [1]	✓ [1]	✓	✓	✓	D	D		✓
7.2	✓ [2]	✓ [2]	✓	✓	✓	D	D		✓
7.1	✓ [3]	✓ [3]	✓	✓	✓	✓ [4]	✓		✓
7.0			✓	✓	✓	✓ [4]	✓	✓ [5]	✓
6.4				✓	✓	✓ [4]	✓	✓ [5]	✓

[1]	(1, 2) Mongoid version 7.3.2 or higher is required.

[2]	(1, 2) Mongoid version 7.2.5 or higher is required.

[3]	(1, 2) Mongoid version 7.1.10 or higher is required.

[4]	(1, 2, 3) Ruby version 2.4.1 or higher is required.

[5]	(1, 2) Ruby version 2.2.2 or higher is required.

MongoDB Server Compatibility

The following compatibility table specifies the recommended version(s) of Mongoid for use with a specific version of MongoDB server.

Note that in order to use features of a particular MongoDB server version, both the driver and Mongoid must support that server version. Please refer to the driver compatibility page for driver compatibility matrices.

“D” in a column means support for that MongoDB server version is deprecated and will be removed in a next version.

Mongoid	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
7.5	✓	✓	✓	✓	✓	✓	D	D	D	D
7.4	✓	✓	✓	✓	✓	✓	D	D	D	D
7.3		✓	✓	✓	✓	✓	D	D	D	D
7.2		✓	✓	✓	✓	✓	D	D	D	D
7.1		✓	✓	✓	✓	✓	D	D	D	D
7.0		✓	✓	✓	✓	✓	D	D	D	D
6.4		✓	✓	✓	✓	✓	D	D	D	D

Rails Compatibility

The following compatibility table specifies which versions of Ruby on Rails are supported by Mongoid.

Mongoid	Rails 7.0	Rails 6.1	Rails 6.0	Rails 5.2	Rails 5.1	Rails 5.0	Rails 4.2
7.5	✓	✓	✓	✓ [6]	D
7.4	✓	✓	✓	✓ [6]	✓ [6]
7.3	✓ [9]	✓	✓	✓ [6]	✓ [6]
7.2		✓ [8]	✓	✓ [6]	✓ [6]
7.1		✓ [8]	✓	✓	✓
7.0		✓ [8]	✓ [7]	✓	✓
6.4				✓	✓
6.3				✓	✓
6.2				✓	✓
6.1						✓
6.0						✓
5.4							✓
5.2							✓

[6]	(1, 2, 3, 4, 5, 6, 7) Using Rails 5.x with Ruby 3 is not supported.

[7]	Rails 6.0 requires Mongoid 7.0.5 or later.

[8]	(1, 2, 3) Rails 6.1 requires Mongoid 7.0.12, 7.1.7 or 7.2.1 in the respective 7.0, 7.1 and 7.2 stable branches.

[9]	Rails 7.x requires Mongoid 7.3.4 or later.

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