Sourced from mongoose's releases.

8.19.1 / 2025-10-06

• 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 / 2025-10-02

• 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 / 2025-09-29

• 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 / 2025-09-22

• 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 / 2025-09-08

• 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 / 2025-08-22

• 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
• types: remove logic that omits timestamps when virtuals, methods, etc. options set #15577 #12807

8.17.2 / 2025-08-18

• fix: avoid Model.validate() hanging when all paths fail casting #15580 #15579 piotracalski
• types(document): better support for flattenObjectIds and versionKey options for toObject() and toJSON() #15582 #15578

... (truncated)

Sourced from mongoose's changelog.

8.19.1 / 2025-10-06

• 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 / 2025-10-02

• 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 / 2025-09-29

• 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 / 2025-09-22

• 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 / 2025-09-08

• 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 / 2025-08-22

• 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
• types: remove logic that omits timestamps when virtuals, methods, etc. options set #15577 #12807

8.17.2 / 2025-08-18

• fix: avoid Model.validate() hanging when all paths fail casting #15580 #15579 piotracalski
• types(document): better support for flattenObjectIds and versionKey options for toObject() and toJSON() #15582 #15578

... (truncated)

• a24dce3 fix lint
• b2ae288 chore: release 8.19.1
• 7d70708 Merge pull request #15676 from Automattic/vkarpov15/gh-15671
• 616b7ca perf: reduce instantiations by avoiding FilterQuery on non-records in a way t...
• 66915ea Merge branch 'master' into vkarpov15/gh-15671
• daa978d Merge pull request #15677 from Automattic/vkarpov15/gh-15672-2
• d030c29 Merge pull request #15679 from orgads/perf-array-filters
• d4c921d perf: Avoid needless path translation
• e89d752 Merge pull request #15675 from aalok-y/main
• 931f606 Update README.md
• Additional commits viewable in compare view

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)