New release candidate: 1.4.0rc6

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This sixth RC of 1.4.0 fixes some regressions and issues in the new functionality observed with the prior RCs:

Improvements

  • #3454: Explicitly document changed LineProcessorStream behaviour under Python 3
  • Implement login dialog through a UiPlugin to work around various issues with regards to caching and general workflow with the current approach.
  • Docs for new access control situation.
  • Remove some left-overs of old login UI and fix some code comments.

Bug fixes

  • #3455 (regression): Fix a Python 3 bug with the self._printer wrapper injected into plugins.
  • #3456: Fix firmware info not being reported to plugins if firmware autodetection is disabled. Not a regression, but severe enough to merit inclusion ASAP.
  • #3459 (regression): Fix login sessions not being persistent even with “Remember me” selected due to forced logout when becoming stale after 24h.
  • (regression) Fix buggy implementation of octoprint.server.api.(before|after)_request hooks.
  • (regression) Fix missing protection for blueprint plugins
  • (regression) Fix yet another Python 3 list vs iterator issue

The heads-up regarding Plugins and Python 3 from 1.4.0rc1 still applies.

You can find the full changelog and release notes as usual on Github.

Special thanks to everyone who contributed to this release candidate and provided full, analyzable bug reports, you help making the next release as stable as possible!

As the past RCs have shown me that a lot of people appear to be unaware of this: Please do not install this RC if you expect a fully stable version. It is not a stable release, it is a release candidate, and of the next big release to boot: severe bugs may occur, and they might be bad enough that they make a manual downgrade to an earlier version necessary - maybe even from the command line.

You should feel comfortable with and capable of possibly having to do this before installing an RC.

If you want to and can help test this release candidate, you can find information on how to switch to the “Maintenance RCs” release channel in this guide if not already done (also linked below).

Please provide feedback on this RC. For general feedback you can use this ticket on the tracker. The information that everything works fine for you is also valuable feedback 😄. For bug reports please follow “How to file a bug report” - I need logs and reproduction steps to fix issues, not just the information that something doesn’t work so make sure to fill out all fields of the issue template.

Thanks!

Depending on the feedback regarding this version I’ll look into fixing any observed regressions and bugs and pushing out a follow-up version as soon as possible and necessary.

Links

This is a companion discussion topic for the original entry at https://octoprint.org/blog/2020/02/26/new-release-candidate-1.4.0rc6/
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