Blender — Blender 4.5.4 LTS Maintenance Release !

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)
• OpenEXR: Support reading multipart files with full channel names. (138e8fbf1bd85a081682f6d44d8bd73e993560ff)
• Render: Forward compatibility for Blender 5.0 pass renames. (738209b2bee5be0ac4946ab5511f1644f2ac3391)
• Illegal address when rendering with a custom camera in 4.5. (#145544)
• UV Editor: Lock Pinned Islands in UV packing not working with UDIMs. (#141293)
• Armature Symmetrize not symmetrizing Display Type prop. (#145190)
• Crash when Capture Screenshot Preview. (#145719)
• Regression: 3D cursor misaligned with axes in certain viewport rotations. (#145028)
• Crash when opening old file with undefined node. (#145675)
• USD Import: Fails to respect path user preference. (#145856)
• VSE: from 4.5 right click select doesn't work with Blade Tool. (#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)
• 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)
• Crash when switching view layer after undoing deleting/unlinking of certain object types. (#145848)
• Fix #145932: Relax Face Set brush can corrupt mesh. (#145952)
• Crash using playhead snapping in VSE in new scene. (#145890)
• Blender 4.5 freezes with blank output colour management settings. (#146042)
• Vulkan: Render Preview Error with Multiple 3D Viewports. (#145961)
• Blender sometimes crashes when using resize detail button in dyntopo mode on a mesh with resolution higher than 500. (#146233)
• Viewport Compositor: Render Layer input will not pass thru. (#146133)
• 4.2.5 LTS - 5.0.0 alpha: Crashing after using UV Sculpt Tools in New Scene. (#145879)
• Rigify: Actions Feature does not use Slotted Actions. (#144641)
• .glb file import error on Blender 4.5. (#142867)
• OpenGL: Curve control points are extremely small when first displayed. (#146501)
• Possible Relax vertices in UV crash (wrong uv_sculpt size, missing defaults). (#132016)
• User interface artifacting with Vulkan on Qualcomm. (#145315)
• Fix #147340: EEVEE: Crash on failed world material compilation. (#147445)
• Grease Pencil: Hardness property doesn't affect Square line type. (#147147)
• Fix: Cycles: MetalRT motion curves setup bug. (#146568)
• Can't select verts/edges/faces behind wire/bounds objects while retopology overlay is on. (#145993)
• Crash when exporting alembic with Color Attributes. (#146822)
• Moving a empty material after joining objects crashes Blender (backport request). (#146878)
• Node Wrangler: Add Principled Setup plugs bump textures into filter width. (#146679)
• Fix: VSE: Propagate split to connected strips by default. (22d9b4ff719)
• Fix: USD: Camera FStop of 0 means no depth of field. (47368daebe0)
• Animation is not deleting when Bake Simulation was used. (#146105)
• bpy.ops.object.geometry_node_bake_pack_single failing on Windows. (#147175)
• Blender crashes when using the Align Bones operator across two armatures with different mirror settings. (#146242)
• VSE: "Swap Data" breaks strip alignment, then crashes. (#146682)
• Some keymap user preferences do not get imported into Blender 4.5 properly. (#146670)
• Crash if Grab and Keep Moving Missing Linked Data Block. (#147283)
• Weight painting can easily create NaN. (#146671)
• Test for greying out linked images in texture painting is backwards. (#147568)
• Crash after dragging any Asset Library Essential into the Compositor (Timings Overlay enabled, invokes the wrong tooltip). (#147752)
• Fix #146724: Crash when deleting node group from outliner. (#147828)
• Fix #147803: assert triggered on keyframe jump on NLA control curves. (#147957)
• Crash deleting library from which the current scene is linked. (#147759)
• Crash using Blade or Slip tool in VSE with new scene. (#145853)
• Toggle Window Fullscreen, Timeline (4.5.0, 4.5.1, 4.5.2, 4.5.3, 4.5.4). (#146812)
• Fix (unreported) Collada: missing finish call on some modified attribute. (84418a8d16a6846afae0e80cde25027f53fded56)
• Sequencer: crash with sequencer in sequencer. (#147477)
• Crash when dragging outliner object into status bar. (#144921)
• anim_transforms_to_deltas resets non-keyframed object transforms values. (#147796)
• Collection input is missing the picker on new node group. (#147860)
• Unnecessary write operations on blender_assets.cats.txt. (#111576)
• Blender freezes on saving/loading of blend files with complex liboverride trees. (#145894)
• install_linux_packages: Fix for Fedora ≥ 41 (DNF5). ((https://projects.blender.org/blender/blender/commit/e32a8ec884e))
• Grease Pencil: Stroke not visible for specific post processing values. (#147174)
• Blender Timeline animation, SHIFT vs CTRL selection difference. (#147996)
• Rigify doesn't check existence of collection properly. (#148454)
• Opening old 2012 .blend file crashes blender. (#148170)

For a detailed list of bug fixes in each release, see 4.5 LTS releases on blender.org

LTS Program

Learn more about the LTS program on blender.org

Stay up-to-date

You can follow Blender on social media:

Keep reporting any issues you find to make this LTS the most stable release ever !

Happy blending, The Blender team