• Introduce a patch method, for an easy replacement of pymongo by mongomock across several clients and servers
• Implement basic arithmetic operators in the aggregate pipeline
• Infer query fields when upserting even when subdocuments have the same root
• Fix the `modified_count` result when update operations do not modify a document
• Switch maintenance to @pcorpet
• Fix cursor's sort method: - accept a dict as an input - handle the special case $natural
• Raise an attribute error when trying to access a sub collection starting by an underscore as an attribute
• Fix WriteConcern comparison
• Compute time difference as milliseconds when using $subtract on dates
• Clean up unused variables
• Validate find's filter parameter even when the collection is empty
• Make sure that with_options does not break when used with the collection's own write_concern
• Fix projection of nested field when using exclusion
• Also check lint style in the tests package
• Use unittest's assertRaises instead of nose's one
• Implements list_collection_names (#454)
• Import Abstract Base Class from collections.abc module instead of collections
• ADD : Simple aggregate operations for $project
• List skipped tests in CI and drop a test that is always skipped
• Do not insert comparison operators when upserting
• _inc_updater now handles incrementing values in an array as opposed to dict
• Add few missing options/functions needed by pymodm 0.4.0
• Store subclasses of dict as dict, not as themselves
• List some missing features of map_reduce()
• Fix index management (properly test this time)