Issues

• Haptic bonds - layout as delocalized pi-system - but must not use aromatic bonds

  Bug

  epam/Indigo#3937 · Filter by author achher opened on Oct 1, 2026

• The layout refinement has no working limit and ignores the timeout

  LayoutPriority: Medium
  Bug

  epam/Indigo#3935 · Filter by author NikolaiBalabanov opened on Sep 30, 2026 · Indigo-1.50.0-rc.1
  

• Layout of crowded haptic complexes: overlapping ligands, haptic lines through bonds, stretched bonds

  LayoutPriority: Low
  Bug

  epam/Indigo#3934 · Filter by author NikolaiBalabanov opened on Sep 30, 2026 · Indigo-1.50.0-rc.1
  

• Support electron delocalisation

  Draft
  Feature

  epam/Indigo#3930 · Filter by author ljubica-milovic opened on Sep 29, 2026

• indigoComponent must not split haptic bonds / attachment group

  Customer FeedbackIndigo APIPriority: High
  Bug

  epam/Indigo#3927 · Filter by author achher opened on Sep 27, 2026 · Indigo-1.50.0-rc.1
  

• Update vendored FreeType library

  epam/Indigo#3926 · Filter by author konstantin-mordovskih opened on Sep 24, 2026
  

• Render the charge of a haptic ligand and add a haptic display option

  DraftExport to KETExport to MOLImport from MOLImprovement
  Feature

  epam/Indigo#3925 · Filter by author NikolaiBalabanov opened on Sep 23, 2026 · Indigo-1.50.0-rc.1

• Expose attachment group charge and radical in the C API and wrappers

  Export to KETExport to MOLImport from MOLImprovement
  Feature

  epam/Indigo#3924 · Filter by author NikolaiBalabanov opened on Sep 23, 2026 · Indigo-1.50.0-rc.1
  

• Add charge and radical properties to the attachment group

  Export to KETExport to MOLImport from MOLImprovement
  Feature

  epam/Indigo#3923 · Filter by author NikolaiBalabanov opened on Sep 23, 2026 · Indigo-1.50.0-rc.1
  

• HELM conversion produces an invalid CHEM attachment mapping when an atom from a monomer-uncovered fragment is connected to multiple recognized monomers

  Priority: High
  Bug

  epam/Indigo#3917 · Filter by author NadezhdaKatcman opened on Sep 17, 2026

• Substructure matching ignores E/Z configuration for query molecules loaded from mol v3000 files

  Priority: High
  Bug

  epam/Indigo#3914 · Filter by author NadezhdaKatcman opened on Sep 15, 2026

• IndigoException when handling HELM strings containing the psiU monomer

  Priority: Low
  Bug

  epam/Indigo#3911 · Filter by author zabackermit opened on Sep 9, 2026

• Indigo.exactMatch() result depends on molecule arguments order

  Priority: High
  Bug

  epam/Indigo#3910 · Filter by author zabackermit opened on Sep 9, 2026

• Patch Result SVG Glyph IDs

  epam/Indigo#3882 · Filter by author AlekseiKhariukov opened on Sep 4, 2026
  

• SubstructureMatcher doesn't see match in a query molecule with ABS stereo-label and the same molecule with AND or OR stereo-label instead of ABS

  Bug

  epam/Indigo#3874 · Filter by author NadezhdaKatcman opened on Sep 2, 2026

• Aromatization can produce stereochemical SMILES that Indigo cannot reload

  Bug

  epam/Indigo#3871 · Filter by author rvaidya opened on Sep 2, 2026
  1

• Segmentation fault when expanding HELM with comma-separated monomers

  Priority: Low
  Bug

  epam/Indigo#3869 · Filter by author zabackermit opened on Sep 1, 2026

• Change the definition of a chiral center

  DraftStereochemistry
  Feature

  epam/Indigo#3853 · Filter by author ljubica-milovic opened on Aug 21, 2026 · Refined Backlog

• Layout works wrong for unfold hydrogen operation

  Ljubica found bugsPriority: HighSeverity: High
  Bug

  epam/Indigo#3851 · Filter by author AlexeyGirin opened on Aug 20, 2026 · Indigo-1.50.0-rc.1

• Render S-group abbreviations in PNG and SVG

  Draft
  Feature

  epam/Indigo#3845 · Filter by author Mihajlovic-Marko opened on Aug 13, 2026

• System ignores Display charge option on export to SVG/PNG

  Ljubica found bugsPriority: MediumSeverity: Medium
  Bug

  epam/Indigo#3832 · Filter by author AlexeyGirin opened on Aug 6, 2026 · Indigo-1.50.0-rc.1

• System loads mirrored version of sence/antisence chain if opened as new project

  Priority: HighSeverity: High
  Bug

  epam/Indigo#3836 · Filter by author AlexeyGirin opened on Aug 4, 2026 · Refined Backlog

• Support rendering and saving of lone pairs

  User`s Feedback
  Feature

  epam/Indigo#3827 · Filter by author ljubica-milovic opened on Aug 4, 2026 · Refined Backlog

• Enhanced stereochemistry is deleted when creating S-groups

  Renderer
  Bug

  epam/Indigo#3803 · Filter by author jblack-mestre opened on Jul 24, 2026 · Indigo-1.48.0-rc.1
  1

  

• Need to make a transition fo ObjPool<int> to std::vector<int> migration.

  c++CoreIndigo Service
  Task

  epam/Indigo#3793 · Filter by author NikolaiBalabanov opened on Jul 21, 2026 · Refactore Indigo containers