This should have been released way faster after 1.2.9, since it fixes two bugs introduced by this release, but a nasty flu that's making the rounds in Germany got in the way of this. While this time we have mostly fixes of bugs and little annoyances, at least a hand full of minor improvements also made it into this release:

* The performance of the console output during plugin installation and deinstallation was improved.
* Some performance improvements in the communication layer were done.
* The "firmware error" message introduced in the last release was reworded to make it more obvious that a general communication error occured.
* OctoPrint now allows management of .mp4 timelapse files, which is of interest to people who've taken to using a wrapper script to generate those instead of .mpg files. See the release notes for details on this.
* A bunch of less commonly used configuration options in the Serial settings got their own "Advanced options" section.

Since most changes this time happened under the hood, no screen shots, sorry ;)

Find the full changelog and release notes here: https://github.com/foosel/OctoPrint/releases/tag/1.2.10

It may take up to 24h for your update notification to pop up, so don't be alarmed if it doesn't show up immediately after reading this.

If you don't get an "Update Now" button with your update notification, read this: https://github.com/foosel/OctoPrint/wiki/Plugin:-Software-Update#making-octoprint-updateable-on-existing-installations or - even more specifically - this: https://github.com/foosel/OctoPrint/wiki/Plugin:-Software-Update#octoprint--125

If you do get an "Update Now" button but the update is immediately reported to be successful without any changes, read this: https://github.com/foosel/OctoPrint/wiki/FAQ#im-running-127-i-tried-to-update-to-a-newer-version-via-the-software-update-plugin-but-im-still-on-127-after-restart

If you have any problems with your OctoPrint installation, please seek support in the G+ Community or the Mailinglist (see the links below). The comments here are not a good place for that, neither are Twitter, Facebook or private mails :)

Further Information & Links:

FAQ: https://github.com/foosel/OctoPrint/wiki/FAQ

Docs: http://docs.octoprint.org/

Contribution Guidelines: https://github.com/foosel/OctoPrint/blob/master/CONTRIBUTING.md

How to file a bug report: https://github.com/foosel/OctoPrint/blob/master/CONTRIBUTING.md#how-to-file-a-bug-report

G+ Community: https://plus.google.com/communities/102771308349328485741

Mailinglist: https://groups.google.com/group/octoprint