• Implement the $facet operator. (#563)
• Fix index creation when a value used in the indexed fields is not hashable (e.g. dict)
• Support bson.regex on $not queries (#560)
• Mark Cursor.count method as deprecated, as it is in pymongo since v3.7.0
• Skip tests that cannot be run if there are no local Mongo server, or no available Js runtime
• Handle bytes sort as BinData sort in python3. (#559)
• Time the creation of GridFS file to account for that when checking the time difference
• Handle bson.Regex objects as regular expression
• Fix flaky test (again)
• Run all tests with an old version of pymongo to make sure we stay compatible
• Raises an error if the operand of $in is not an array
• Relax the restriction on WriteConcern so that it works with pymongo 3.6.1
• Generate an error on unknown operator as MongoDB server does. For #553
• Fix flaky test in gridfs
• Fix aggregate's $project for the _id field when it uses an expression
• Fix Travis Python version
• Handle array subfields in the stage of the aggregate pipeline. (#549)
• Ensure valid collection names when using the [...] accessor on a DB
• Consider "name" argument to create_index for index name (#550)
• Add support for $slice (aggregate). (#547)
• Handle aggregate $first and $last operator when data is missing
• Fix demo code in documentation
• Fix propagation of codec_options from client to database to collection, and set its tz_aware flag
• Fix behaviour of $all when applied to an array