# OctoPrint 2.0.0rc4 - Product: OctoPrint (https://whatsnew.fyi/product/octoprint) - Vendor: Gina Häußge - Date: 2026-07-14 - Version: 2.0.0rc4 - Original notes: https://github.com/OctoPrint/OctoPrint/releases/tag/2.0.0rc4 - Permalink: https://whatsnew.fyi/product/octoprint/releases/2.0.0rc4 - Labels: Pre-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'. --- - **security** — Add reauth requirement for setting defaultReauthenticationTimeout via UI/settings API - **fixed** — Limit settings paths available with SETTINGS_READ permission to frontend relevant settings

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###### ⚠️ Important note on release candidates This is a **R**elease **C**andidate of OctoPrint. It is not a stable release: severe bugs can occur, and they can be bad enough that they make a manual downgrade to an earlier version necessary - maybe even from the command line. You should be comfortable with and capable of possibly having to do this before installing an RC. ###### 🔁 Feedback on this RC Please provide *general* feedback on this RC [in this ticket](https://github.com/OctoPrint/OctoPrint/issues/5434). An "All is working fine" is valuable feedback as well because it tells me people are actually testing this RC and just not finding problems with it. **If you run into any obvious bugs, please follow ["How to file a bug report"](https://github.com/OctoPrint/OctoPrint/blob/master/CONTRIBUTING.md#how-to-file-a-bug-report)** - I need logs and reproduction steps to fix issues, not just the information that something doesn't work. Thanks! ###### Things to take a closer look at For this RC, these things should get a closer look while testing, if possible: 1. proper behaviour when using the included web interface as well as any third party clients at your disposal 2. printing via a serial connection 3. managing files on your printer's storage via a serial connection 4. blocklisted serial ports and/or baud rates are properly migrated to the serial connector (one per line, *not* comma-separated) 5. **if your printer's disconnected state happens to be "after error", please report back on which connector you used and what the reported error is** 6. if you have a Klipper/Moonraker based printer available: can you use it through OctoPrint when you install the [Moonraker Connector](https://github.com/OctoPrint/OctoPrint-MoonrakerConnector)? 7. if you have a Bambu based printer available: can you use it through OctoPrint when you install the [Bambu Connector](https://github.com/OctoPrint/OctoPrint-BambuConnector)? > [!NOTE] > As I'm still seeing a lot of so far unexplained "error" states, please take special note of item 5! ###### ✋ Heads-ups [The heads-ups from 2.0.0rc1 still apply!](https://github.com/OctoPrint/OctoPrint/releases/tag/2.0.0rc1) ###### 🐛 Bug fixes ###### Core - [#5425](https://github.com/OctoPrint/OctoPrint/issues/5425): Add reauth requirement for setting `defaultReauthenticationTimeout` via UI/settings API. - [#5429](https://github.com/OctoPrint/OctoPrint/issues/5429): Limit settings paths available with `SETTINGS_READ` permission to frontend relevant settings. ###### 🎉 Special thanks to all the contributors! Special thanks to everyone who contributed to this RC and provided full, analyzable bug reports! ###### 🔗 More information - [Commits](https://github.com/OctoPrint/OctoPrint/compare/2.0.0rc3...2.0.0rc4)