9.2.1

9.2.1 / 2026-02-11

• types(query): allow assigning QueryFilter<DocType> to QueryFilter<any> #16020
• types: duplicate identifier 'UUIDToJSON' in mongoosejs 9.2.0 #16023
• types: preserve subdocument toObject() field types when using virtuals + versionKey options #16021 #15965 AbdelrahmanHafez
• docs(mongoose): add missing options to mongoose.set() docs #16019

9.2.0

9.2.0 / 2026-02-09

• feat: add option to skip middleware #15883 #8768 AbdelrahmanHafez
• feat(model): delay "Duplicate schema index" warning until createIndexes runs to include model name in the warning #15979
• feat(model): add strict option to Model.hydrate(...) #15940 #15977
• feat(document): add flattenUUIDs option to toObject() and toJSON() #15864 #15021 AbdelrahmanHafez
• fix(schema): treat undefined as not provided for strict, strictQuery and id options #16004 AbdelrahmanHafez
• types(inferrawdoctype): avoid adding _id to nested paths and handle _id: false in options + schema definition #15989
• types: fix toObject() type inference with timestamps + virtuals #15975 AbdelrahmanHafez
• types(models): remove dead MapReduce and GeoSearch types #15984
• test(types): remove tsd in favor of tsc + test utilities #15951 #15696

8.23.0

8.23.0 / 2026-02-09

• feat(document): add flattenUUIDs option to toObject() and toJSON() (backport #15021 to 8.x)

9.1.6

9.1.6 / 2026-02-04

• fix: handle other top-level query operators in sanitizeFilter
• fix(types): fix toObject() type inference with timestamps + virtuals #15975 #15965 AbdelrahmanHafez
• fix(populate): defer subpopulate until after match functions to avoid comparing populated subdocs #15981 mongodb-js/mongoose-autopopulate#112
• fix(DocumentArray): correctly clone subdocument when updating document array #15978 #15973
• fix(documentArray): fix change tracking for documentArrays in nested maps #15983 #15970 AbdelrahmanHafez
• docs: clarify that you need to explicitly create timeseries collection before inserting document #15990 #15986

8.22.1

8.22.1 / 2025-02-04

• fix: handle other top-level query operators in sanitizeFilter
• fix(document): when cloning a doc with subdocs, make sure the subdocs parent is the cloned doc #15904 #15901
• types(models): support Mongoose query casting in AnyBulkWriteOperation filter property #15910
• types: add toBSON() to documents #15927

6.13.9

6.13.9 / 2026-02-04

• fix: handle other top-level query operators in sanitizeFilter
• types(aggregate): add $firstN, $lastN, $bottom, $bottomN, $minN and $maxN operators #15303 #15299
• docs(compatibility): add note that Mongoose ^6.5 works with MongoDB server 7.x #15427

8.22.0

8.22.0 / 2026-01-27

• feat(model): allow passing strict option to hydrate() #15944 #15940

8.21.1

• fix(clone): fix parent doc for map subdocuments and array subdocuments #15958 AbdelrahmanHafez
• fix(document): when cloning a doc with subdocs, make sure the subdocs parent is the cloned doc #15904 #15901
• fix: respect currentTime schema option in bulkWrite updates #15976 sderrow
• types(models): support Mongoose query casting in AnyBulkWriteOperation filter property #15910
• types: add toBSON() to documents #15927

9.1.5

9.1.5 / 2026-01-20

• fix(map): validate map subdocument when loaded with init #15960 #15957 AbdelrahmanHafez
• fix(discriminator): prevent indexes and callQueue duplication with shared nested schemas #15974 #15966 AbdelrahmanHafez
• fix(subdocuments): do not pass parent path on init #15970 #15969 #15682 AbdelrahmanHafez
• types(inferrawdoctype): correct handling for subdocs and doc arrays #15967 #13772
• docs: improve grammar and clarity in TypeScript schema comments #15971 harshsinghpujari

9.1.4

9.1.4 / 2026-01-15

• fix: attach sessions to docs retrieved by cursor #15953 #15949 mjfwalsh
• fix(model): make hydrate() handle nested schema arrays #15964 #15956
• fix(clone): fix parent doc for map subdocuments and array subdocuments #15958 #15954 AbdelrahmanHafez
• fix: prevent crash when accessing nested paths on prototype #15962 #15961 som14062005