# Blender Blender 4.5.5 LTS Maintenance Release !

- Product: Blender (https://whatsnew.fyi/product/blender)
- Vendor: Blender Foundation
- Date: 2025-11-18
- Original notes: https://store.steampowered.com/news/app/365670/view/616557815194977340
- Permalink: https://whatsnew.fyi/product/blender/releases/2025-11-18-blender-4.5.5-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'.

---

- **fixed** — Light probes don't interpolate on Intel Arc OpenGL
- **fixed** — Python template ui_tool_simple.py attempts to show non-existent property mode for transform.translate
- **fixed** — Collections and the Timeline are sorted in different ways
- **fixed** — temp_data().images.load fails to handle relative paths
- **fixed** — Assert on unknown DNA struct ViewLayerEngineData
- **fixed** — VSE keyframed strip not moving to keyed position
- **fixed** — ShaderNodeCustomGroup crashes on display in Blender 4.4.0 and higher
- **fixed** — bmesh.types.BMFace.calc_tangent_edge_pair() is broken since 4.3
- **fixed** — Error in wayland_dynload wl_display_dispatch_pending wrapper
- **fixed** — Renaming a bone can rename channel in unassociated action
- **fixed** — Crash entering new node group in compositor if a Missing Data-Block Node Group node is present
- **fixed** — Renaming bone can rename channels in all action slots
- **fixed** — Empty Default Eraser Brush causes crash
- **fixed** — Lineart Modifier Match Output for Vertex Weight Transfer not working as expected
- **fixed** — Adjust Pose Asset does not create undo step resulting in loss of work
- **fixed** — Grease Pencil Edit mode change Opacity is absent from the menus
- **fixed** — Default Preset protection interacts with custom Presets, leading to them not being deletable
- **fixed** — Missing Runtime Libraries if Blender is built with py-Infix in path
- **fixed** — Enum values are not correctly generated
- **fixed** — Grease Pencil Reproject Strokes is not working
- **fixed** — nla.apply_scale() does not apply scale

Blender 4.5.5 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

* Intel Arc OpenGL: Light probes don't interpolate. ([#141165](https://projects.blender.org/blender/blender/issues/141165))
* Python template "ui_tool_simple.py" attempts to show property "mode" that doesn't exist for "transform.translate". ([#148490](https://projects.blender.org/blender/blender/issues/148490))
* Collections and the Timeline are sorted in 2 different ways. ([#144460](https://projects.blender.org/blender/blender/issues/144460))
* temp_data().images.load fails to handle relative paths. ([#148683](https://projects.blender.org/blender/blender/issues/148683))
* Fix (unreported) assert on unknown DNA struct `ViewLayerEngineData`. ([57327d831d2](https://projects.blender.org/blender/blender/commit/57327d831d2))
* VSE: keyframed strip not moving to keyed position. ([#141190](https://projects.blender.org/blender/blender/issues/141190))
* ShaderNodeCustomGroup crashes on display in Blender 4.4.0 and higher. ([#148685](https://projects.blender.org/blender/blender/issues/148685))
* bmesh.types.BMFace.calc_tangent_edge_pair() is broken since 4.3. ([#148777](https://projects.blender.org/blender/blender/issues/148777))
* Fix: error in wayland_dynload wl_display_dispatch_pending wrapper. ([13522fd2945](https://projects.blender.org/blender/blender/commit/13522fd2945))
* Fix #148338: Renaming a bone can rename channel in unassociated action. ([#148477](https://projects.blender.org/blender/blender/issues/148477))
* Crash entering new node group in compositor if a "Missing Data-Block" Node Group node is present. ([#148750](https://projects.blender.org/blender/blender/issues/148750))
* Fix #148478: Renaming bone can rename channels in all action slots. ([#148845](https://projects.blender.org/blender/blender/issues/148845))
* Empty Default Eraser Brush Causes Crash. ([#148902](https://projects.blender.org/blender/blender/issues/148902))
* Lineart Modifier - Match Output for Vertex Weight Transfer not working as expected. ([#148736](https://projects.blender.org/blender/blender/issues/148736))
* Adjust Pose Asset does not create undo step resulting in loss of work. ([#148244](https://projects.blender.org/blender/blender/issues/148244))
* GP: Edit mode change Opacity (Shift+F) is absent from the menus. ([#147394](https://projects.blender.org/blender/blender/issues/147394))
* Default Preset protection interacts with custom Presets, leading to them not being deletable. ([#140719](https://projects.blender.org/blender/blender/issues/140719))
* Missing Runtime Libraries if Blender is Built with `py`-Infix in Path. ([#149070](https://projects.blender.org/blender/blender/issues/149070))
* enum values are not correctly generated. ([#141853](https://projects.blender.org/blender/blender/issues/141853))
* Grease Pencil: Reproject Strokes is not working. ([#146795](https://projects.blender.org/blender/blender/issues/146795))
* nla.apply_scale() does not apply scale. ([#143853](https://projects.blender.org/blender/blender/issues/143853))
* Fix: OptiX denoiser showing up on devices without OptiX compatible GPUs. ((https://projects.blender.org/blender/blender/commit/e2af0be1aca))
* Broken selection drawing for flat objects in ortho view. ([#139555](https://projects.blender.org/blender/blender/issues/139555))
* FBX export doesn't preserve geometry order. ([#146700](https://projects.blender.org/blender/blender/issues/146700))
* Cloth Physics Simulation Crash on Free every time after opening project. ([#149201](https://projects.blender.org/blender/blender/issues/149201))
* Depsgraph doesn't build relations for camera markers. ([#149172](https://projects.blender.org/blender/blender/issues/149172))
* Fix #148979: Grease Pencil: Reproject operator keep radius consis

_[Truncated at 4000 characters — full notes: https://store.steampowered.com/news/app/365670/view/616557815194977340]_