Issues

• Update iTwin.js sample iModels with FederationGuids

  iTwin/itwinjs-core#9847 · Filter by author johnnyd710 opened on Oct 20, 2026

• Attached Drawings Stale after update

  needs triage
  iTwin/itwinjs-core#9845 · Filter by author Ellord207 opened on Oct 20, 2026
  

• ECSql Instance Query enhancement - filter classes searched to only those which define one of multiple properties.

  iTwin/itwinjs-core#9843 · Filter by author ColinKerr opened on Oct 18, 2026
  1

• Documentation Issue: "https://www.itwinjs.org/v4/learning/tutorials/v4/learning/tutorials/hello-world-viewer" results into 404

  iTwin/itwinjs-core#9842 · Filter by author Pa3kc123 opened on Oct 18, 2026

• Provide a tryGetInstances() api to batch many relationship queries

  performancetransformers
  iTwin/itwinjs-core#9836 · Filter by author DanRod1999 opened on Oct 14, 2026
  1

  

• [ecschema-metadata] FormatSetFormatsProvider: add a read-only formatSet getter and make the provider the only way to change formats

  iTwin/itwinjs-core#9834 · Filter by author hl662 opened on Oct 14, 2026

• Docs: Link deprecation replacement

  documentation
  iTwin/itwinjs-core#9831 · Filter by author ben-polinsky opened on Oct 13, 2026

• Semantic rebase can leave orphan physical columns when the incoming schema supersedes a local schema that added columns

  ecdb
  iTwin/itwinjs-core#9827 · Filter by author khanaffan opened on Oct 13, 2026

• Map imagery does not recover after network comes back (failed loads cached as NotFound)

  displaymap-realityneeds triage
  iTwin/itwinjs-core#9824 · Filter by author romradchenko opened on Oct 13, 2026

• Move submodel class validation to TypeScript

  ecdbeditingnativeneeds triage
  iTwin/itwinjs-core#9810 · Filter by author tigistmebrate11 opened on Oct 7, 2026

• PolyfaceRangeTreeContext - expose more APIs/building blocks

  geometryneeds triage
  Enhancement

  iTwin/itwinjs-core#9809 · Filter by author a-gagnon opened on Oct 7, 2026

• SchemaView: Property categories should be inherited from base properties

  ecschema
  Bug

  iTwin/itwinjs-core#9801 · Filter by author grigasp opened on Oct 6, 2026
  1

  

• Move TypeScript schema libraries to a separate repository

  ecschema
  Initiative

  iTwin/itwinjs-core#9793 · Filter by author rschili opened on Oct 3, 2026

• Decoration graphics are clipped

  displayneeds triage
  iTwin/itwinjs-core#9785 · Filter by author a-gagnon opened on Oct 1, 2026

• ElementDrivesTextAnnotation.updateFieldDependencies recurses to stack overflow when disableThinnedNativeInstanceWorkflow: true

  needs triage
  Bug

  iTwin/itwinjs-core#9779 · Filter by author matthaleky opened on Sep 30, 2026
  1

• Expose ECSqlReader constructor

  confusing API
  Enhancement

  iTwin/itwinjs-core#9769 · Filter by author JonasDov opened on Sep 29, 2026

• ECSql query incorrectly returns no rows

  needs triage
  iTwin/itwinjs-core#9766 · Filter by author ColinKerr opened on Sep 28, 2026

• Backend shouldn't be providing html

  breaking changeneeds triage
  Enhancement

  iTwin/itwinjs-core#9765 · Filter by author tcobbs-bentley opened on Sep 28, 2026 · iTwin.js 6.0
  2

  

• Changeset apply with fastForward = false can fail with OOM error on large changesets

  needs triage
  iTwin/itwinjs-core#9754 · Filter by author ColinKerr opened on Sep 24, 2026
  1

• Flashing multiple elements

  displayneeds triage
  iTwin/itwinjs-core#9735 · Filter by author bsy-nicholasw opened on Sep 18, 2026
  3

  

• VersionedSqliteDb.verifyVersions masks the incompatible-version error with a native "db not open" error

  cloud containersgood first issue
  Bug

  iTwin/itwinjs-core#9712 · Filter by author MichaelSwigerAtBentley opened on Sep 11, 2026

• pullChanges/pushChanges ignore an already-aborted abortSignal

  needs triage
  Bug

  iTwin/itwinjs-core#9700 · Filter by author GytisCepk opened on Sep 8, 2026

• Incrementally move schema access away from SchemaContext

  ecdbecschema
  Enhancement

  iTwin/itwinjs-core#9684 · Filter by author rschili opened on Sep 1, 2026

• Remove @itwin/core-electron CJS deep-import compatibility in iTwin.js 6

  breaking change
  iTwin/itwinjs-core#9662 · Filter by author hl662 opened on Aug 26, 2026 · iTwin.js 6.0

• Graphical editing scope incompatible with schedule editing session

  displayneeds triage
  iTwin/itwinjs-core#9643 · Filter by author DenisMicha opened on Aug 21, 2026
  2