New release: 1.5.3

As the first release of 2021 I present you a bugfix release that fixes two small bugs that were identified in 1.5.x and which turned out to cause a significant amount of support overhead over the past couple of weeks.

Accordingly, the changelog is very short and only consists of these entries:

• #3849 - Fix plugin install errors (e.g. due to undervoltage) not being properly reported to the client.
• #3886 - Fix handling of 404 errors upon plugin install

Like every single release (and release candidate) of OctoPrint ever since early 2016 this release was made possible only through your continued support of my work 💕

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On every new OctoPrint release we see some people run into the same issues with outdated or broken environments all over again.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 encountered over the past couple of release cycles first, and test if the included fixes solve your problem.

Heads-ups

The heads-ups from 1.5.0 still apply, please read them carefully, they might impact you and how you use OctoPrint! Also see the Further Information and Links below for more information, where to find help and how to roll back.

Thanks

Thanks to everyone who contributed to this bugfix release and provided full, analyzable bug reports, suggestions and feedback!

A special Thank you! to these fine people for their PRs:

@cp2004

@kantlivelong

Further Information

If connected to the internet, OctoPrint will allow you to apply this update automatically via an update notification. It may take up to 24h for this notification to pop up, so don't be alarmed if it doesn't show up immediately after reading this. You can force the update however via Settings > Software Update > Advanced options > Force check for update.

If your update fails chances are high you are running into one of the common update issues listed with fixes here, so please go through that FAQ entry first.

If you have any problems with your OctoPrint installation, please seek support on the community forum.

Links

• Changelog and Release Notes
• FAQ entry "My OctoPrint update fails" (Read in case of any update problems!)
• Community forum
• Discord Server
• FAQ
• Documentation
• Contribution Guidelines (also relevant for creating bug reports!)
• How to file a bug report
• How to roll back to an earlier release (OctoPi)
• How to roll back to an earlier release (manual install)