Issues

• toObject({ flattenDecimals: true }) does not flatten Decimal128 on documents/subdocuments with only primitive values (shallow fast path)

  Automattic/mongoose#16568 · Filter by author jeremyml opened on Oct 6, 2026

• TypeScript: Schema.Types.Int32 is rejected for number fields and incorrectly inferred

  Automattic/mongoose#16564 · Filter by author kiki-kanri opened on Oct 5, 2026

• getDriverCursor() never settles when called after a pre-find error

  Automattic/mongoose#16561 · Filter by author IbrahimHafez1 opened on Oct 5, 2026

• QueryCursor.destroy() does not await driver cursor cleanup

  Automattic/mongoose#16560 · Filter by author IbrahimHafez1 opened on Oct 5, 2026

• Inconsistent typing between Model.bulkWrite and Model.updateOne (and probably other ones)

  Automattic/mongoose#16545 · Filter by author loganmzz opened on Oct 1, 2026 · 9.11.1
  1

• doc.set() on a nested path loses a nested value read from the same document (a.b becomes undefined)

  Automattic/mongoose#16530 · Filter by author lev-tuler opened on Sep 25, 2026

• Remove sift in favor of Mongoose-maintained lib

  backwards-breaking
  Automattic/mongoose#16516 · Filter by author vkarpov15 opened on Sep 17, 2026 · 10.0
  2

  

• toObject({getters:true}) on projected documents: applyGetters iterates all schema paths and each unselected path triggers an O(projectionKeys) isSelected scan — O(paths x projection) per doc

  performance
  Automattic/mongoose#16373 · Filter by author tsushanth opened on Jul 7, 2026 · Parking Lot
  1

• validateSync middleware cycle

  backwards-breaking
  Automattic/mongoose#16291 · Filter by author AbdelrahmanHafez opened on May 21, 2026 · 10.0
  2

• CI: fix/improve flaky tests

  Automattic/mongoose#16284 · Filter by author AbdelrahmanHafez opened on May 13, 2026
  4

• Support for schema-driven deep population of all referenced paths without requiring explicit path specification

  enhancementnew feature
  Automattic/mongoose#16074 · Filter by author jml6m opened on Mar 6, 2026
  4

• Automatic type inference for Mongoose 10 discussion - the future of Schema.create()

  discussiontypescript
  Automattic/mongoose#16050 · Filter by author vkarpov15 opened on Feb 27, 2026 · 10.0
  2

  

• Type-safe .populate method

  enhancementnew feature
  Automattic/mongoose#16010 · Filter by author akim-bow opened on Feb 5, 2026
  1

• Pass result to query.post() hooks

  backwards-breakingenhancement
  Automattic/mongoose#15899 · Filter by author vkarpov15 opened on Dec 15, 2025 · 10.0

• [Suggestion] make limit with populate more reliabe.

  enhancementnew feature
  Automattic/mongoose#15863 · Filter by author AbdelrahmanHafez opened on Dec 4, 2025

• Proposal to Set autoIndex Parameter to false by Default

  backwards-breaking
  Automattic/mongoose#15803 · Filter by author erreina opened on Nov 27, 2025 · 10.0
  2

• Performance: avoid cloning when saving document if minimize: false

  Automattic/mongoose#15694 · Filter by author vkarpov15 opened on Oct 20, 2025 · Parking Lot
  3

• { enum: true } option for queries or perhaps Model.validate

  enhancementnew feature
  Automattic/mongoose#15581 · Filter by author IslandRhythms opened on Aug 12, 2025
  1

• Document method types are missing methods when queried from statics

  typescript
  Automattic/mongoose#15532 · Filter by author domharrington opened on Jul 14, 2025 · TypeScript backlog
  10

• Add Optional Cascading Delete Support to Mongoose Schemas

  enhancementnew feature
  Automattic/mongoose#15417 · Filter by author 0xEbrahim opened on May 10, 2025
  5

• Deduced type of an array in a schema is plain array instead of mongoose array.

  backwards-breakingtypescript
  Automattic/mongoose#14983 · Filter by author DavidTelenko opened on Oct 24, 2024 · TypeScript backlog
  4

• can not specify zstd compression level

  underlying library issue
  Automattic/mongoose#14807 · Filter by author KhaledMosaad opened on Aug 15, 2024
  4

• mongoose insertMany 30x slower than mongodb insertMany in some cases

  performance
  Automattic/mongoose#14719 · Filter by author benthayer opened on Jul 2, 2024
  1

• Create tool that can introspect collection and turn into mongoose Schema

  plugin
  Automattic/mongoose#14570 · Filter by author vkarpov15 opened on May 5, 2024 · 8.x Unprioritized

• BulkSave on entities with virtual properties *and* a transaction: massive performance hit and OOM crashes

  performance
  Automattic/mongoose#14394 · Filter by author hardcodet opened on Feb 29, 2024
  6