Sourced from mongoose's releases.

8.19.2 / 2025年10月20日

• perf(setDefaultsOnInsert): avoid computing all modified paths when running setDefaultsOnInsert and update validators, only calculate if there are defaults to set #15691 #15672
• fix: correct handling of relative vs absolute paths with maps and subdocuments #15682 #15678 #15350
• ci: add publish script with provenance #15684 #15680

8.19.1 / 2025年10月06日

• perf: avoid getting all modified paths in update when checking if versionKey needs to be set #15677 #15672
• perf: Avoid needless path translation #15679 orgads
• fix(query): throw error if using update operator with modifier and no path #15670 #15642
• types: avoid making FilterQuery a conditional type because of how typescript handles distributed conditional unions #15676 #15671
• docs: update installation instructions #15675 aalok-y

8.19.0 / 2025年10月02日

• feat: upgrade mongodb driver to 6.20.0 #15651 #15656
• feat(model): add virtuals option to Model.hydrate() to set virtuals #15638 #15627
• fix(schema): handle casting array filters underneath maps of Mixed #15655 #15653
• types: optimize InferRawDocType #15588 ssalbdivad
• types(schema): add lean schema option to TypeScript types #15646 #15583 #10090

8.18.3 / 2025年09月29日

• fix(update): avoid throwing error if update has a top-level $addToSet with no path #15648 #15642
• types(query): allow passing arbitrary options #15644 #15643
• docs(connection+mongoose): correct mongodb option name user -> username #15650 #15647
• test: add tests covering vector search and text search using Atlas CLI #15649 #15645

8.18.2 / 2025年09月22日

• fix(document): prevent $clone() from converting mongoose arrays into vanilla arrays #15633 #15625
• fix(connection): use correct collection name for model when using useConnection() #15637
• fix(connection): propagate changes to _lastHeartbeatAt to useDb() child connections #15640 #15635
• types: fix schema property type definition in SchemaType #15631

8.18.1 / 2025年09月08日

• types: correct type inference for maps of maps #15602
• types(model): copy base model statics onto discriminator model #15623 #15600
• types: fix types for a string of enums #15605 ruiaraujo
• types(SchemaOptions): disallow versionKey: true, which fails at runtime #15606
• docs(typescript): add example explaining how to use query helper overrides for handling lean() #15622 #15601
• docs(transactions): add note about nested transactions #15624

8.18.0 / 2025年08月22日

• feat(schema): support for union types #15574 #10894
• fix: trim long strings in minLength and maxLength error messages and display the string length #15571 #15550
• types(connection+collection): make BaseCollection and BaseConnection usable as values #15575 #15548

... (truncated)

Sourced from mongoose's changelog.

8.19.2 / 2025年10月20日

• perf(setDefaultsOnInsert): avoid computing all modified paths when running setDefaultsOnInsert and update validators, only calculate if there are defaults to set #15691 #15672
• fix: correct handling of relative vs absolute paths with maps and subdocuments #15682 #15678 #15350
• ci: add publish script with provenance #15684 #15680

8.19.1 / 2025年10月06日

• perf: avoid getting all modified paths in update when checking if versionKey needs to be set #15677 #15672
• perf: Avoid needless path translation #15679 orgads
• fix(query): throw error if using update operator with modifier and no path #15670 #15642
• types: avoid making FilterQuery a conditional type because of how typescript handles distributed conditional unions #15676 #15671
• docs: update installation instructions #15675 aalok-y

8.19.0 / 2025年10月02日

• feat: upgrade mongodb driver to 6.20.0 #15651 #15656
• feat(model): add virtuals option to Model.hydrate() to set virtuals #15638 #15627
• fix(schema): handle casting array filters underneath maps of Mixed #15655 #15653
• types: optimize InferRawDocType #15588 ssalbdivad
• types(schema): add lean schema option to TypeScript types #15646 #15583 #10090

8.18.3 / 2025年09月29日

• fix(update): avoid throwing error if update has a top-level $addToSet with no path #15648 #15642
• types(query): allow passing arbitrary options #15644 #15643
• docs(connection+mongoose): correct mongodb option name user -> username #15650 #15647
• test: add tests covering vector search and text search using Atlas CLI #15649 #15645

8.18.2 / 2025年09月22日

• fix(document): prevent $clone() from converting mongoose arrays into vanilla arrays #15633 #15625
• fix(connection): use correct collection name for model when using useConnection() #15637
• fix(connection): propagate changes to _lastHeartbeatAt to useDb() child connections #15640 #15635
• types: fix schema property type definition in SchemaType #15631

8.18.1 / 2025年09月08日

• types: correct type inference for maps of maps #15602
• types(model): copy base model statics onto discriminator model #15623 #15600
• types: fix types for a string of enums #15605 ruiaraujo
• types(SchemaOptions): disallow versionKey: true, which fails at runtime #15606
• docs(typescript): add example explaining how to use query helper overrides for handling lean() #15622 #15601
• docs(transactions): add note about nested transactions #15624

8.18.0 / 2025年08月22日

• feat(schema): support for union types #15574 #10894
• fix: trim long strings in minLength and maxLength error messages and display the string length #15571 #15550
• types(connection+collection): make BaseCollection and BaseConnection usable as values #15575 #15548

... (truncated)

• c43556d chore: release 8.19.2
• 18b6ec6 Merge pull request #15684 from Automattic/vkarpov15/gh-15680
• 044366f chore: make publish with provenance live
• d296807 use node v24 for publishing
• d7bf4df build browser before publishing
• 104af11 Merge pull request #15692 from Automattic/vkarpov15/gh-14949
• dd39133 Merge pull request #15691 from Automattic/vkarpov15/gh-15672-3
• 472d2c8 Update lib/connection.js
• 489ccc6 Update lib/connection.js
• abc2889 fix(connection): snapshot Date so stale heartbeat check protects against useF...
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