6.2.3

6.2.3 / 2022-02-21

• fix(model): avoid dropping base model indexes when using discriminators with Connection.prototype.syncIndexes() #11424 #11421 AbdelrahmanHafez
• fix(document): handle array defaults when selecting element underneath array #11376
• fix(populate): correctly handle depopulating populated subdocuments #11436
• fix(utils): improve deepEqual() handling for comparing objects with non-objects #11417
• fix(schema): allow declaring array of arrays using [{ type: [String] }] #11252
• perf: improve validation sync and async by replacing forEach with classic for loops #11414 Uzlopak
• perf: make hasDollarKeys faster #11401 Uzlopak
• fix(index.d.ts): ValidationError errors only contains CastError or ValidationError #11369 Uzlopak
• fix(index.d.ts): make InsertManyResult.insertedIds return an array of Types.ObjectId by default #11197
• fix(index.d.ts): allow pre('save') middleware with pre options #11257
• fix(index.d.ts): add supressReservedKeysWarning option to schema #11439 hiukky
• docs(connections): improve replica set hostname docs with correct error message and info about err.reason.servers #11200
• docs(populate): add virtual populate match option documentation #11411 remirobichet
• docs(document): add note to API docs that flattenMaps defaults to true for toJSON() but not toObject() #11213
• docs(document+model): add populate option to populate() API docs #11170
• docs(migrating_to_6): add additional info about removing omitUndefined #11038
• docs(migrating_to_6): add model.exists breaking change returning doument instead of boolean AbdelrahmanHafez

6.2.2

6.2.2 / 2022-02-16

• fix: fix QueryCursor and AggregationCursor compatibility with Node v17.5 #11381 benjamingr
• fix: better esm support, no necessity for setting allowSyntheticDefaultImports and esModuleInterop #11343 Uzlopak
• fix(model): apply projection parameter to hydrate() #11375
• fix: fix issue with creating arrays of length > 10000 #11405 Uzlopak
• fix(document): minimize single nested subdocs #11247
• fix(connection): handle reopening base connection with useDb() #11240
• perf: use property access instead of get() helper where possible #11389 Uzlopak
• fix: use isArray() instead of instanceof Array #11393 Uzlopak
• perf: improve performance of cast$expr() #11388 Uzlopak
• perf: remove startsWith() from isOperator() #11400 Uzlopak
• fix(index.d.ts): extract PipelineStage into separate file #11368 Uzlopak
• fix(index.d.ts): fix $search highlight path option type #11373 lmX2015
• docs: update changelog file to CHANGELOG.md #11365 AbdelrahmanHafez
• docs: fix broken links #11388 #11377 saibbyweb
• docs: remove double determiners in connections docs #11340 Erma32

6.2.1

6.2.1 / 2022-02-07

• perf: improve performance especially of validate and clone #11298 Uzlopak
• perf: remove regexp-clone #11327 Uzlopak
• fix(document): handle initing nested properties in non-strict documents #11309
• fix(query): cast $elemMatch underneath $all #11314
• fix(populate): respect schema-level strictPopulate option #11290
• fix: set default for dotted path projection #11293 noseworthy
• fix(model): correctly handle writeConcern.w = 0 when saving #11300
• fix(model): throw VersionError when saving with no changes and optimisticConcurrency = true #11295
• fix(query): avoid adding $each to $addToSet on mixed arrays #11284
• fix(index.d.ts): allow using type: [Schema.Types.ObjectId] for ObjectId arrays #11194
• fix(index.d.ts): make Types.DocumentArray<> convert type to subdoc, rename TMethods -> TMethodsAndOverrides #11061
• fix(index.d.ts): support passing generic to createCollection() and collection() for integration with MongoDB Node driver's collection class #11131
• fix(index.d.ts): add strictPopulate to MongooseOptions #11276
• docs: mark Mongoose 6 as compatible with MongoDB 4 #11320 JavaScriptBach
• docs: remove documentation for useNestedStrict #11313 mark-langer
• docs: add "new" to ObjectId class in aggregate.js docs #11322 JavanPoirier
• chore: handle eslint configuration in .eslintrc.json #11326 Uzlopak
• refactor: add parenthesis for constructors in tests #11330 apeltop

6.2.0

6.2.0 / 2022-02-02

• feat(connection+mongoose): add support for continueOnError for syncIndexes #11266 AbdelrahmanHafez
• feat(query): cast literals in $expr where possible #10663
• feat(schema+mongoose): add pluginTags to allow applying global plugins to only schemas with matching tags #9780
• feat(discriminator): support overwriteModels:true to reuse discriminator names #11244 #10931 IslandRhythms
• feat(index.d.ts): add DocType generic param to Model functions that return queries to better support projections #11156
• feat(error): export MongooseServerSelectionError #11202
• feat(schematype): add validators, path, isRequired to public API and TypeScript types #11139
• fix(model): make exists(...) return lean document with _id or null instead of boolean #11142 AbdelrahmanHafez
• fix(model): support storing versionKey in nested paths #10980
• fix(index.d.ts): add options to bulkSave() type def #11201 Uzlopak
• fix(index.d.ts): better support for query projections #11210 EugeneKorshenko

6.1.10

6.1.10 / 2022-02-01

• fix(mongoose): correctly handle destructured isValidObjectId #11304
• fix(mongoose): defer to MongoDB driver isValid() for isValidObjectId() #11227

6.1.8

6.1.8 / 2022-01-24

• fix(connection): stop leaking sessions in .transaction() #11259 #11256 Uzlopak
• perf: remove sliced in favor of Array.prototype.slice() #11238 Uzlopak
• perf: improve setDottedPath #11264 Uzlopak
• fix(document): handle edge case where NestJS sets String.type = String, mixing up schema definitions #11199
• fix: remove obsolete code after upgrading to bson4 #11265 Uzlopak
• fix: remove util.isArray in favor of Array.isArray #11234 Uzlopak
• fix(index.d.ts): avoid UnpackedIntersection making findOne().populate() result non-nullable #11041
• docs(migration): add note to change default functions to schema #11245 AbdelrahmanHafez
• docs: updated docs and issue templates for new FAQs #11171 IslandRhythms
• chore: fix casting benchmark #11262 Uzlopak
• chore: add mongodb-memory-server to test easier locally #11255 Uzlopak
• chore: fix testing tsconfig #11243 Uzlopak
• refactor: move utils.random to test folder #11239 Uzlopak

6.1.7

6.1.7 / 2022-01-17

• fix(model): correct handling for $push on a nested array #11108
• fix(update): correctly apply timestamps to update pipelines #11151
• fix(document): correctly handle modifying array subdocument after setting array subdocument to itself #11172
• fix(index.d.ts): allow passing options to model() in place of removed skipInit #11137
• fix(aggregate): allow passing verbosity to Aggregate.prototype.explain() #11144
• fix(index.d.ts): avoid TypeScript inferring _id as any type with HydratedDocument #11085
• docs: fix Node.js Driver compat link #11214 wesbos
• docs: remove extraneous backquote #11204 joebowbeer

6.1.6

6.1.6 / 2022-01-10

• perf(document): delay creating document event emitter until used to improve memory usage, several small improvements to improve initing docs with large arrays #10400
• fix(model): avoid bulkSave() error when versionKey: false #11186 #11071 IslandRhythms
• fix(model): revert #11079: findByIdAndUpdate(undefined) breaking change #11149
• fix(index.d.ts): support strings in deep populate #11181 ivalduan
• fix(index.d.ts): rename map() -> transform() to line up with change in v6.0 #11161
• fix(index.d.ts): allow new Model(obj) for stricter type checks #11148
• fix(index.d.ts): make Schema.prototype.pre() and post() generics default to HydratedDocument #11180
• docs: improve autoCreate docs #11116
• docs(schematype): add missing parameter to example #11185 kerolloz
• docs(connections): use updated link to list of MongoDB Node driver connect() options #11184 splinter
• docs(aggregate): fix formatting #11191 enieber
• docs: fix broken link #11179 khairnarsaurabh23

6.1.5

6.1.5 / 2022-01-04

• perf(index.d.ts): simplify Schema typedef for query helpers and methods to significantly reduce TS compiler overhead #10349
• fix(document): allow populating deeply nested models as strings #11168 #11160 AbdelrahmanHafez
• fix(query): allow calling limit() and skip() with a string #11017
• fix(cursor): propery apply selected fields when loading discriminator docs with query cursor #11130
• fix(mongoose+connection): clone schema correctly when passing instance of another Mongoose instance's Schema to Connection.prototype.model() #11047
• fix(index.d.ts): handle primitives with FlattenMaps #11117
• fix(index.d.ts): enforce id on lean query result type #11118
• fix(index.d.ts): export facet stage type #11150 mhoc
• fix(index.d.ts): correct return type of projection method #11176 EugeneKorshenko
• fix(index.d.ts): additional fix for $group pipeline stage #11140 #11067 EugeneKorshenko
• docs: update CONTRIBUTING.md for TS tests #11164 ahmedelshenawy25
• docs: use es6 object destructuring instead of regular dot operator for accessing value in object #11147 Shivaansh-Agarwal

6.1.4

6.1.4 / 2021-12-27

• fix(document): handle save with undefined nested doc under subdoc #11110
• fix(document): allow manually populating subdocument refs with create() #10856
• fix(populate): handles refPath underneath map of subdocuments #9359
• fix(update): throw error when calling findByIdAndUpdate with undefined id #11079 gramliu
• fix(mongoose): export ConnectionStates #11133 orgads
• fix(index.d.ts): unpack array when using generic type override with populate() #11027
• fix(index.d.ts): fix typings in Merge stage #11132
• fix(index.d.ts): PipelineStage.Merge interface definition is wrong #11109
• docs(typescript): add note about Schema.Types.ObjectId vs Types.ObjectId in document definition #10949
• docs(connection): clarify that "connected" and "open" are different #10886
• docs(populate): correct refPath example to not use on as a schema path name #11113
• docs: fix strictQuery example #11135 MontgomeryWatts