# Blender Blender 4.5.12 LTS Maintenance Release !

- Product: Blender (https://whatsnew.fyi/product/blender)
- Vendor: Blender Foundation
- Date: 2026-07-21
- Original notes: https://store.steampowered.com/news/app/365670/view/698770449667982974
- Permalink: https://whatsnew.fyi/product/blender/releases/2026-07-21-blender-4.5.12-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** — VSE crash when prefetching frames for a scene strip with sequencer input which scene only contains a sound strip
- **fixed** — Assert when undoing Make Single User with a linked mesh
- **fixed** — Crash in Armature Edit mode after duplicating animated bone
- **fixed** — Invalid ID name uniqueness code handling of ID name removal
- **fixed** — VSE adding a crossfade between two strips does not set the crossfade inputs based on selection anymore

Blender 4.5.12 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

* VSE: crash when prefetching frames for a scene strip with sequencer input which scene only contains a sound strip. ([#160559](https://projects.blender.org/blender/blender/issues/160559))
* Assert when undoing Make Single User with a linked mesh. ([#161211](https://projects.blender.org/blender/blender/issues/161211))
* Fix: crash in Armature Edit mode after duplicating animated bone. ([e3d228ac409838aae79559866073e9fa19c2eb83](https://projects.blender.org/blender/blender/commit/e3d228ac409838aae79559866073e9fa19c2eb83))
* Fix: Invalid ID name uniqueness code handling of ID name removal. ([23131d9d2c40cc5cc9114aa49ec9fe087c0a12ee](https://projects.blender.org/blender/blender/commit/23131d9d2c40cc5cc9114aa49ec9fe087c0a12ee))
* VSE, adding a crossfade between two strips does not set the crossfade inputs based on selection anymore. ([#156207](https://projects.blender.org/blender/blender/issues/156207))

For a detailed list of bug fixes in each release, see [ 4.5 LTS releases on blender.org](https://www.blender.org/download/lts/4-5/)

##### LTS Program

Learn more about the [LTS program on blender.org](https://www.blender.org/download/lts/)

##### 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