# OctoPrint 1.11.5

- Product: OctoPrint (https://whatsnew.fyi/product/octoprint)
- Vendor: Gina Häußge
- Date: 2025-12-01
- Version: 1.11.5
- Original notes: https://github.com/OctoPrint/OctoPrint/releases/tag/1.11.5
- Permalink: https://whatsnew.fyi/product/octoprint/releases/1.11.5

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** — Workaround for a regression in Tornado 6.5.x, causing file uploads with non-latin-1 characters in the name to fail
- **fixed** — Fixed logic error in pure-python fallback of search_through_file helper
- **fixed** — Apply --no-build-isolation during installation of plugins with legacy packaging

<p align="center"><a href="https://octoprint.org/support-octoprint/" target="_blank"><img src="https://gist.githubusercontent.com/foosel/a66c9642e294cd61e79b760143c0200a/raw/72fce2cc4f6f2aef3864abdd99ece7b2f377ff56/funding-banner.svg" alt="Click here if you want to help with OctoPrint's funding!"></a></p>

##### ✋ Heads-ups

**The heads-ups from previous 1.11.x releases still apply**, please read their release notes as well for a full picture of what you should be aware of and what changed!

##### ⛈ Issues while updating?

On every new OctoPrint release we see some people run into the same issues with outdated or broken environments all over again. If you encounter a problem during update, please check [this collection of the most common issues](https://community.octoprint.org/t/my-octoprint-update-fails/37880) encountered over the past couple of release cycles first, and test if the included fixes solve your problem. 

##### ♻ Changes

###### 🐛 Bug fixes

###### Core

- [#5206](https://github.com/OctoPrint/OctoPrint/issues/5206): Workaround for a regression in Tornado 6.5.x, causing file uploads with non-latin-1 characters in the name to fail.
- Fixed logic error in pure-python fallback of `search_through_file` helper

###### Backup Plugin

- Apply `--no-build-isolation` during installation of plugins with legacy packaging

##### 🎉 Special thanks to all the contributors!

Special thanks to everyone who contributed to this bugfix release!

##### 🔗 More information

- [Commits](https://github.com/OctoPrint/OctoPrint/compare/1.11.4...1.11.5)
- Release candidates:
  - As this is a bugfix release, there were no release candidates