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