Issues

• exrmultipart -convert fails on valid tiled or deep single-part files (type-mismatch error)

  AcademySoftwareFoundation/openexr#2820 · Filter by author syoyo opened on Nov 6, 2026

• Docs: maxSamplesPerPixel is documented as required for deep parts, but no code uses it and shipped deep images omit it

  AcademySoftwareFoundation/openexr#2819 · Filter by author syoyo opened on Nov 6, 2026

• How to build of x86_64 without simd?

  AcademySoftwareFoundation/openexr#2815 · Filter by author barracuda156 opened on Nov 4, 2026
  1

• Vendored OpenJPH doesn't hide symbols in static OpenEXRCore

  AcademySoftwareFoundation/openexr#2810 · Filter by author lgritz opened on Nov 3, 2026
  1

• Silent fallback to the bundled OpenJPH when the system OpenJPH is a newer minor version

  AcademySoftwareFoundation/openexr#2806 · Filter by author bim-ba opened on Nov 2, 2026
  1

• OpenEXR build rejects OpenJPH versions newer than the minimum supported one.

  AcademySoftwareFoundation/openexr#2805 · Filter by author antonio-rojas opened on Nov 2, 2026

• Multipart DWAA encoding uses about 10x more peak memory in 3.3.0 than in 3.2.12

  AcademySoftwareFoundation/openexr#2791 · Filter by author ultra-sonic opened on Oct 29, 2026

• Create release_candidate.yml to validate patch releases

  AcademySoftwareFoundation/openexr#2756 · Filter by author cary-ilm opened on Oct 17, 2026

• Add python stubs

  AcademySoftwareFoundation/openexr#2671 · Filter by author beatreichenbach opened on Sep 24, 2026
  1

• LJ2K Quality levels get bad fast

  AcademySoftwareFoundation/openexr#2665 · Filter by author fnordware opened on Sep 21, 2026
  5

• #include path incorrect when vendored imath built (easy one-line fix)

  AcademySoftwareFoundation/openexr#2659 · Filter by author tellypresence opened on Sep 20, 2026
  4

• DWA compression issues with large and inf values

  AcademySoftwareFoundation/openexr#2606 · Filter by author brechtvl opened on Aug 22, 2026

• Intra-object overflow patterns in the implementations of class Vec2, Vec3, Vec4 in ImathVec.h

  AcademySoftwareFoundation/openexr#2600 · Filter by author ubersandro opened on Aug 20, 2026

• Updated ci-openexr build images

  AcademySoftwareFoundation/openexr#2517 · Filter by author jfpanisset opened on Jun 30, 2026

• Proposal: Extended Channel Pixel Types for OpenEXR

  AcademySoftwareFoundation/openexr#2365 · Filter by author ssh4net opened on Apr 17, 2026
  12

• question about adding custom compression formats to EXR

  needs attention
  AcademySoftwareFoundation/openexr#2245 · Filter by author richgel999 opened on Feb 12, 2026

• OpenEXR IO and compression performance for small tile sizes

  needs attention
  AcademySoftwareFoundation/openexr#2232 · Filter by author lji-ilm opened on Jan 10, 2026
  15

• Data race condition when using exrmetrics

  needs attention
  AcademySoftwareFoundation/openexr#2207 · Filter by author vlazar-ilm opened on Nov 24, 2025
  3

• Multiple performance regressions in 3.4.3 compared to 3.2.1

  needs attention
  AcademySoftwareFoundation/openexr#2201 · Filter by author JasminRoy opened on Nov 18, 2025

• Add symbol versioning to make upgrading safer

  needs attention
  AcademySoftwareFoundation/openexr#2155 · Filter by author darix opened on Oct 20, 2025

• [question] What photo edit/paint software actually supports EXR?

  needs attention
  AcademySoftwareFoundation/openexr#2135 · Filter by author wigglepixel opened on Oct 3, 2025

• Multiple tests fail on armv6 and armv7 with Bus error

  help wantedneeds attention
  AcademySoftwareFoundation/openexr#2134 · Filter by author ggardet opened on Oct 3, 2025
  13

• Performance regression reading image files with large headers using stream API in 3.3.4

  needs attention
  AcademySoftwareFoundation/openexr#2073 · Filter by author konivo opened on Jul 2, 2025
  6

• Add HTJ2K Compressor to website introduction

  good first issuehelp wanted
  AcademySoftwareFoundation/openexr#2065 · Filter by author palemieux opened on Jun 16, 2025
  3

• Add packed part size to exrmetrics

  good first issuehelp wanted
  AcademySoftwareFoundation/openexr#2031 · Filter by author palemieux opened on May 4, 2025
  1