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....
In this update3
Full notes
Full Blender update
Read the full published notes in a cleaner layout. The original post stays linked below.
What changed
0 fixes1 addition0 changes0 removals
Performance
addedPatch NotesIntel Arc OpenGL: Light probes don't interpolate. (#141165) * Python template "ui_tool_simple.py" attempts to show property "mode" that doesn't exist for "transform.translate". (#148490) * Collections and the Timeline are sorted in 2 different ways. (#144460) * temp_data().images.load fails to handle relative paths. (#148683) * Fix (unreported) assert on unknown DNA struct `ViewLayerEngineData`. (57327d831d2) * VSE: keyframed strip not moving to keyed position. (#141190) * ShaderNodeCustomGroup crashes on display in Blender 4.4.0 and higher. (#148685) * bmesh.types.BMFace.calc_tangent_edge_pair() is broken since 4.3. (#148777) * Fix: error in wayland_dynload wl_display_dispatch_pending wrapper. (13522fd2945) * Fix #148338: Renaming a bone can rename channel in unassociated action. (#148477) * Crash entering new node group in compositor if a "Missing Data-Block" Node Group node is present. (#148750) * Fix #148478: Renaming bone can rename channels in all action slots. (#148845) * Empty Default Eraser Brush Causes Crash. (#148902) * Lineart Modifier - Match Output for Vertex Weight Transfer not working as expected. (#148736) * Adjust Pose Asset does not create undo step resulting in loss of work. (#148244) * GP: Edit mode change Opacity (Shift+F) is absent from the menus. (#147394) * Default Preset protection interacts with custom Presets, leading to them not being deletable. (#140719) * Missing Runtime Libraries if Blender is Built with `py`-Infix in Path. (#149070) * enum values are not correctly generated. (#141853) * Grease Pencil: Reproject Strokes is not working. (#146795) * nla.apply_scale() does not apply scale. (#143853) * Fix: OptiX denoiser showing up on devices without OptiX compatible GPUs. (e2af0be1aca) * Broken selection drawing for flat objects in ortho view. (#139555) * FBX export doesn't preserve geometry order. (#146700) * Cloth Physics Simulation Crash on Free every time after opening project. (#149201) * Depsgraph doesn't build relations for camera markers. (#149172) * Fix #148979: Grease Pencil: Reproject operator keep radius consistent. (#149241) * Compositor: Grouping a node with animation data (and removing sockets) leaves values without animation. (#148664) * Fix: Nodes: missing undo step when editing node socket items. (a4c16f57912) * Blender Crashes in Potrace library. (#148792) * Fix: Parent type not reset after 'Clear and Keep Transforms'. (afc86559f59) * Fix: Error when connecting Boolean sockets to Material Output in Material Nodes. (#147808) * Fix: Python API: bpy.app.is_job_running('SHADER_COMPILATION'). (b1fafcf5603) For a detailed list of bug fixes in each release, see 4.5 LTS releases on blender.org
Blender changes
addedIntel Arc OpenGL: Light probes don't interpolate. (#141165) * Python template "ui_tool_simple.py" attempts to show property "mode" that doesn't exist for "transform.translate". (#148490) * Collections and the Timeline are sorted in 2 different ways. (#144460) * temp_data().images.load fails to handle relative paths. (#148683) * Fix (unreported) assert on unknown DNA struct `ViewLayerEngineData`. (57327d831d2) * VSE: keyframed strip not moving to keyed position. (#141190) * ShaderNodeCustomGroup crashes on display in Blender 4.4.0 and higher. (#148685) * bmesh.types.BMFace.calc_tangent_edge_pair() is broken since 4.3. (#148777) * Fix: error in wayland_dynload wl_display_dispatch_pending wrapper. (13522fd2945) * Fix #148338: Renaming a bone can rename channel in unassociated action. (#148477) * Crash entering new node group in compositor if a "Missing Data-Block" Node Group node is present. (#148750) * Fix #148478: Renaming bone can rename channels in all action slots. (#148845) * Empty Default Eraser Brush Causes Crash. (#148902) * Lineart Modifier - Match Output for Vertex Weight Transfer not working as expected. (#148736) * Adjust Pose Asset does not create undo step resulting in loss of work. (#148244) * GP: Edit mode change Opacity (Shift+F) is absent from the menus. (#147394) * Default Preset protection interacts with custom Presets, leading to them not being deletable. (#140719) * Missing Runtime Libraries if Blender is Built with `py`-Infix in Path. (#149070) * enum values are not correctly generated. (#141853) * Grease Pencil: Reproject Strokes is not working. (#146795) * nla.apply_scale() does not apply scale. (#143853) * Fix: OptiX denoiser showing up on devices without OptiX compatible GPUs. (e2af0be1aca) * Broken selection drawing for flat objects in ortho view. (#139555) * FBX export doesn't preserve geometry order. (#146700) * Cloth Physics Simulation Crash on Free every time after opening project. (#149201) * Depsgraph doesn't build relations for camera markers. (#149172) * Fix #148979: Grease Pencil: Reproject operator keep radius consistent. (#149241) * Compositor: Grouping a node with animation data (and removing sockets) leaves values without animation. (#148664) * Fix: Nodes: missing undo step when editing node socket items. (a4c16f57912) * Blender Crashes in Potrace library. (#148792) * Fix: Parent type not reset after 'Clear and Keep Transforms'. (afc86559f59) * Fix: Error when connecting Boolean sockets to Material Output in Material Nodes. (#147808) * Fix: Python API: bpy.app.is_job_running('SHADER_COMPILATION'). (b1fafcf5603) For a detailed list of bug fixes in each release, see 4.5 LTS releases on blender.org
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
AddedIntel Arc OpenGLLight probes don't interpolate. (#141165) * Python template "ui_tool_simple.py" attempts to show property "mode" that doesn't exist for "transform.translate". (#148490) * Collections and the Timeline are sorted in 2 different ways. (#144460) * temp_data().images.load fails to handle relative paths. (#148683) * Fix (unreported) assert on unknown DNA struct `ViewLayerEngineData`. (57327d831d2) * VSE: keyframed strip not moving to keyed position. (#141190) * ShaderNodeCustomGroup crashes on display in Blender 4.4.0 and higher. (#148685) * bmesh.types.BMFace.calc_tangent_edge_pair() is broken since 4.3. (#148777) * Fix: error in wayland_dynload wl_display_dispatch_pending wrapper. (13522fd2945) * Fix #148338: Renaming a bone can rename channel in unassociated action. (#148477) * Crash entering new node group in compositor if a "Missing Data-Block" Node Group node is present. (#148750) * Fix #148478: Renaming bone can rename channels in all action slots. (#148845) * Empty Default Eraser Brush Causes Crash. (#148902) * Lineart Modifier - Match Output for Vertex Weight Transfer not working as expected. (#148736) * Adjust Pose Asset does not create undo step resulting in loss of work. (#148244) * GP: Edit mode change Opacity (Shift+F) is absent from the menus. (#147394) * Default Preset protection interacts with custom Presets, leading to them not being deletable. (#140719) * Missing Runtime Libraries if Blender is Built with `py`-Infix in Path. (#149070) * enum values are not correctly generated. (#141853) * Grease Pencil: Reproject Strokes is not working. (#146795) * nla.apply_scale() does not apply scale. (#143853) * Fix: OptiX denoiser showing up on devices without OptiX compatible GPUs. (e2af0be1aca) * Broken selection drawing for flat objects in ortho view. (#139555) * FBX export doesn't preserve geometry order. (#146700) * Cloth Physics Simulation Crash on Free every time after opening project. (#149201) * Depsgraph doesn't build relations for camera markers. (#149172) * Fix #148979: Grease Pencil: Reproject operator keep radius consistent. (#149241) * Compositor: Grouping a node with animation data (and removing sockets) leaves values without animation. (#148664) * Fix: Nodes: missing undo step when editing node socket items. (a4c16f57912) * Blender Crashes in Potrace library. (#148792) * Fix: Parent type not reset after 'Clear and Keep Transforms'. (afc86559f59) * Fix: Error when connecting Boolean sockets to Material Output in Material Nodes. (#147808) * Fix: Python API: bpy.app.is_job_running('SHADER_COMPILATION'). (b1fafcf5603) For a detailed list of bug fixes in each release, see 4.5 LTS releases on blender.org
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