# Blender Blender 4.5.4 LTS Maintenance Release !

- Product: Blender (https://whatsnew.fyi/product/blender)
- Vendor: Blender Foundation
- Date: 2025-10-29
- Original notes: https://store.steampowered.com/news/app/365670/view/516350567072665175
- Permalink: https://whatsnew.fyi/product/blender/releases/2025-10-29-blender-4.5.4-lts-maintenance-release

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Blender 4.5.3 fails to compile with OpenColorIO 2.5.0
- **added** — OpenEXR support for reading multipart files with full channel names
- **added** — Forward compatibility for Blender 5.0 pass renames in render
- **fixed** — Illegal address when rendering with a custom camera in 4.5
- **fixed** — UV Editor Lock Pinned Islands in UV packing not working with UDIMs
- **fixed** — Armature Symmetrize not symmetrizing Display Type property
- **fixed** — Crash when Capture Screenshot Preview
- **fixed** — 3D cursor misaligned with axes in certain viewport rotations
- **fixed** — Crash when opening old file with undefined node
- **fixed** — USD Import fails to respect path user preference
- **fixed** — VSE right click select does not work with Blade Tool from 4.5
- **fixed** — VSE Metastack channel preview with negative values
- **fixed** — Crash on pasting VSE strip with driver
- **fixed** — GPU accessing GLContext after it is destroyed
- **fixed** — VRAM leak when Stereoscopy and motion blur are both enabled
- **fixed** — Crash when switching view layer after undoing deleting or unlinking of certain object types
- **fixed** — Relax Face Set brush can corrupt mesh
- **fixed** — Crash using playhead snapping in VSE in new scene
- **fixed** — Blender 4.5 freezes with blank output colour management settings
- **fixed** — Vulkan Render Preview Error with Multiple 3D Viewports

Blender 4.5.4 LTS features important bug fixes. It is released on the _v4.5 - Stable - LTS_ branch.  You can switch to this by **right-clicking** on the **Blender** entry in your library, select **Properties...**. Open the **Betas** tab and select **v4.5 - Stable - Stable**.

##### Patch Notes

* Blender 4.5.3 fails to compile with OpenColorIO 2.5.0. ([#147227](https://projects.blender.org/blender/blender/issues/147227))
* OpenEXR: Support reading multipart files with full channel names. ([138e8fbf1bd85a081682f6d44d8bd73e993560ff](https://projects.blender.org/blender/blender/commit/138e8fbf1bd85a081682f6d44d8bd73e993560ff))
* Render: Forward compatibility for Blender 5.0 pass renames. ([738209b2bee5be0ac4946ab5511f1644f2ac3391](https://projects.blender.org/blender/blender/commit/738209b2bee5be0ac4946ab5511f1644f2ac3391))
* Illegal address when rendering with a custom camera in 4.5. ([#145544](https://projects.blender.org/blender/blender/issues/145544))
* UV Editor: Lock Pinned Islands in UV packing not working with UDIMs. ([#141293](https://projects.blender.org/blender/blender/issues/141293))
* Armature Symmetrize not symmetrizing Display Type prop. ([#145190](https://projects.blender.org/blender/blender/issues/145190))
* Crash when Capture Screenshot Preview. ([#145719](https://projects.blender.org/blender/blender/issues/145719))
* Regression: 3D cursor misaligned with axes in certain viewport rotations. ([#145028](https://projects.blender.org/blender/blender/issues/145028))
* Crash when opening old file with undefined node. ([#145675](https://projects.blender.org/blender/blender/issues/145675))
* USD Import: Fails to respect path user preference. ([#145856](https://projects.blender.org/blender/blender/issues/145856))
* VSE: from 4.5 right click select doesn't work with Blade Tool. ([#145715](https://projects.blender.org/blender/blender/issues/145715))
* Fix: VSE: Metastack channel preview with negative values. ((https://projects.blender.org/blender/blender/commit/f974c598f9a))
* Crash on pasting VSE strip with driver. ([#145629](https://projects.blender.org/blender/blender/issues/145629))
* Fix: GPU: Avoid accessing GLContext after it is destroyed. ((https://projects.blender.org/blender/blender/commit/e8b7e144e04))
* VRAM leak when Stereoscopy and motion blur are both enabled. ([#145743](https://projects.blender.org/blender/blender/issues/145743))
* Crash when switching view layer after undoing deleting/unlinking of certain object types. ([#145848](https://projects.blender.org/blender/blender/issues/145848))
* Fix #145932: Relax Face Set brush can corrupt mesh. ([#145952](https://projects.blender.org/blender/blender/issues/145952))
* Crash using playhead snapping in VSE in new scene. ([#145890](https://projects.blender.org/blender/blender/issues/145890))
* Blender 4.5 freezes with blank output colour management settings. ([#146042](https://projects.blender.org/blender/blender/issues/146042))
* Vulkan: Render Preview Error with Multiple 3D Viewports. ([#145961](https://projects.blender.org/blender/blender/issues/145961))
* Blender sometimes crashes when using resize detail button in dyntopo mode on a mesh with resolution higher than 500. ([#146233](https://projects.blender.org/blender/blender/issues/146233))
* Viewport Compositor: Render Layer input will not pass thru. ([#146133](https://projects.blender.org/blender/blender/issues/146133))
* 4.2.5 LTS - 5.0.0 alpha: Crashing after using UV Sculpt Tools in New Scene. ([#145879](https://projects.blender.org/blender/blender/issues/145879))
* Rigify: Actions Feature does not use Slotted Actions. ([#144641](https://projects.blender.org/blender/blender/issues/144641))
* .glb file import error on Blender 4.5. ([#142867](https://projects.blender.org/blender/blender/issues/142867))
* OpenGL: Curve control points are extremely small when first displayed. ([#146501](https://projects.blender.org/blender/blender/issues/146501))
* Possible Relax vertices in UV crash (wrong uv_sculpt size,

_[Truncated at 4000 characters — full notes: https://store.steampowered.com/news/app/365670/view/516350567072665175]_