Sourced from mongoose's releases.

9.8.1 / 2026-07-27

• perf(document): avoid rebuilding modified paths during required path validation #16379 xianjianlf2
• perf(document): avoid clearing the required paths cache on every document instantiation #16404 #16377
• fix(query): reject update modifiers without paths #16387 AbdelrahmanHafez
• perf: cache toString() results in array.unique to avoid redundant allocations #16390 vivek180905
• types: respect the _id option when inferring StandardSchema types #16402
• types(model): keep Model.schema typed when TSchema is omitted samuelmbabhazi
• docs(guide): clarify strictQuery handling of filter paths not in the schema #16397 MuhammadFarhantahir

9.8.0 / 2026-07-20

• feat(schema): add strictRead option to filter or throw on unknown fields during document hydration #16345 #4279 GourabSingha
• feat: upgrade MongoDB Node.js driver to 7.5 #16391
• fix(subdocument): don't minimize empty document array elements to null #16393 #15336 #7322 WaleedAshraf
• fix(model): correctly handle version keys when bulkSave() inserts new documents #16386 #15800 AbdelrahmanHafez
• fix(cast): correctly cast object-shaped geo query values #16380 #16376 rajkumar0932
• fix(schema): avoid mutating shared setters when casting array query values #16372 #16364 yakubka
• fix(document): correctly handle excluded parent paths with optimistic concurrency #16367 #16054 AbdelrahmanHafez
• types(model): add pathsToSave to SaveOptions #16375 AbdelrahmanHafez
• types(model): support extra fields in hydrate() with strict: false #16374 #15940 AbdelrahmanHafez
• docs(populate): document missing options and perDocumentLimit for populate() #16371 Wnayar
• docs: expand sample() example to show sampling from a filtered subset #16369 Wnayar
• docs: fix typos, grammar, and documentation links #16389 LakshyaTyagi15

9.7.4 / 2026-07-06

• types(create): fix handling of nested objects typed as interfaces #16363 #16362
• types: correct this parameter handling for methods with versionKey #16344 #16046
• docs: add FAQ entry for querySrv ECONNREFUSED errors on Windows with mongodb+srv:// connections #16342 ajay naik

9.7.3 / 2026-06-26

• types(model): correct Model.validate() return type to Promise #16340 #16338
• types: use @​standard-schema/spec for StandardSchema types rather than inlining #16341 #16339

9.7.2 / 2026-06-22

• fix(documentarray): reindex subdocs after array reordering and removal so subsequent nested changes save using the correct path #16282 AbdelrahmanHafez
• fix(document): avoid accessing special properties in Document.prototype.get()
• fix(schema): only return own properties in schematype lookups and disallow setting schema paths under special properties
• docs: update homepage sponsor layout

9.7.1 / 2026-06-17

• perf(document+model): improve save performance by avoiding unnecessary promise allocations and reducing path/default/dirty-state overhead #16331
• fix(schema): include ObjectId regex pattern in toJSONSchema() output #16335 #16334 AbdelrahmanHafez
• fix(populate): split populate into separate queries per document if the resulting $in filter has more than 50k elements to reduce risk of BSON size errors #16333 #5890
• docs: add assistant sidebar with MongoDB Knowledge integration #16311 #16283
• docs: update docs copy buttons, edit links, homepage alignment, and llms.txt generation #16326 #16327 #16329

Sourced from mongoose's changelog.

9.8.1 / 2026-07-27

• perf(document): avoid rebuilding modified paths during required path validation #16379 xianjianlf2
• perf(document): avoid clearing the required paths cache on every document instantiation #16404 #16377
• fix(query): reject update modifiers without paths #16387 AbdelrahmanHafez
• perf: cache toString() results in array.unique to avoid redundant allocations #16390 vivek180905
• types: respect the _id option when inferring StandardSchema types #16402
• types(model): keep Model.schema typed when TSchema is omitted samuelmbabhazi
• docs(guide): clarify strictQuery handling of filter paths not in the schema #16397 MuhammadFarhantahir

9.8.0 / 2026-07-20

• feat(schema): add strictRead option to filter or throw on unknown fields during document hydration #16345 #4279 GourabSingha
• feat: upgrade MongoDB Node.js driver to 7.5 #16391
• fix(subdocument): don't minimize empty document array elements to null #16393 #15336 #7322 WaleedAshraf
• fix(model): correctly handle version keys when bulkSave() inserts new documents #16386 #15800 AbdelrahmanHafez
• fix(cast): correctly cast object-shaped geo query values #16380 #16376 rajkumar0932
• fix(schema): avoid mutating shared setters when casting array query values #16372 #16364 yakubka
• fix(document): correctly handle excluded parent paths with optimistic concurrency #16367 #16054 AbdelrahmanHafez
• types(model): add pathsToSave to SaveOptions #16375 AbdelrahmanHafez
• types(model): support extra fields in hydrate() with strict: false #16374 #15940 AbdelrahmanHafez
• docs(populate): document missing options and perDocumentLimit for populate() #16371 Wnayar
• docs: expand sample() example to show sampling from a filtered subset #16369 Wnayar
• docs: fix typos, grammar, and documentation links #16389 LakshyaTyagi15

9.7.4 / 2026-07-06

• types(create): fix handling of nested objects typed as interfaces #16363 #16362
• types: correct this parameter handling for methods with versionKey #16344 #16046
• docs: add FAQ entry for querySrv ECONNREFUSED errors on Windows with mongodb+srv:// connections #16342 ajay naik

9.7.3 / 2026-06-26

• types(model): correct Model.validate() return type to Promise #16340 #16338
• types: use @​standard-schema/spec for StandardSchema types rather than inlining #16341 #16339

8.24.1 / 2026-06-22

• fix(documentarray): reindex subdocs after array reordering and removal so subsequent nested changes save using the correct path #16282 AbdelrahmanHafez
• fix(document): avoid accessing special properties in Document.prototype.get()
• fix(schema): avoid returning inherited properties from schema path lookups, including paths underneath maps of subdocuments
• fix(clone): isolate cloned arrays from source documents #16281 AbdelrahmanHafez
• types: enable exactOptionalPropertyTypes in TypeScript tests #16287

9.7.2 / 2026-06-22

• fix(documentarray): reindex subdocs after array reordering and removal so subsequent nested changes save using the correct path #16282 AbdelrahmanHafez
• fix(document): avoid accessing special properties in Document.prototype.get()
• fix(schema): only return own properties in schematype lookups and disallow setting schema paths under special properties
• docs: update homepage sponsor layout

... (truncated)

• ac79c2e chore: release 9.8.1
• 4efed2c Merge pull request #16406 from samuelmbabhazi/fix/modelSchema
• b915bd7 Merge pull request #16404 from Automattic/vkarpov15/gh-16377
• 14b750e Merge pull request #16403 from Automattic/vkarpov15/gh-16402
• 41e559d Merge pull request #16387 from AbdelrahmanHafez/fix/reject-pathless-update-mo...
• 1415de4 types(model): keep Model.schema typed when TSchema is omitted
• c0a75c2 Merge pull request #16390 from vivek180905/perf/cache-tostring-in-array-unique
• 7bdee0d perf(document): avoid clearing required paths cache on every document instant...
• 9947b06 test: expand test case to handle just _id: false
• a843b42 types: respect _id option when inferring StandardSchema type
• Additional commits viewable in compare view

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