(Since version 2.0) Use dropIndexes
(Since version 2.0) Use findOneAndUpdate, findOneAndReplace or findOneAndDelete instead
(Since version 2.0) Use findOneAndUpdate, findOneAndReplace or findOneAndDelete instead
(Since version 2.0) Use findOneAndUpdate, findOneAndReplace or findOneAndDelete instead
(Since version 2.0) Use find().limit(1).next(function(err, doc){})
(Since version 2.0) Use find().limit(1).next(function(err, doc){})
(Since version 2.0) Use find().limit(1).next(function(err, doc){})
(Since version 2.0) Use insertOne, insertMany or bulkWrite
(Since version 2.0) Use deleteOne, deleteMany or bulkWrite
(Since version 2.0) Use deleteOne, deleteMany or bulkWrite
(Since version 2.0) Use deleteOne, deleteMany or bulkWrite
(Since version 2.0) Use insertOne, insertMany, updateOne or updateMany
(Since version 2.0) Use insertOne, insertMany, updateOne or updateMany
(Since version 2.0) Use insertOne, insertMany, updateOne or updateMany
(Since version 2.0) Use updateOne, updateMany or bulkWrite
(Since version 2.0) Use updateOne, updateMany or bulkWrite
(Since version 2.0) Use updateOne, updateMany or bulkWrite
(Since version 2.0) Use updateOne, updateMany or bulkWrite