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Release History

1.2.2

This release fixes some minor bugs, contains some (code) tidy ups, two new translations, a mutex to ensure there is only ever one running Mu, and lots of new welcome messages from new Pythonistas learning to code at EuroPython 2023.

Please provide bug reports or feedback via:

https://github.com/mu-editor/mu/issues/new

For complicated hardware related reasons, the MacOS version of this release of Mu will be signed by Mu core maintainer @tmontes. The windows version will remain signed by @ntoll.

  • Thank you @tmontes for fixing packaging issues relating to PyGame and other third party packages.
  • Thanks to @carlosperate for many infrastructure and build related fixes and improvements.
  • The amazing @tjguk has added a cross-platform way for only one instance of Mu to be running at once. This fixes various race conditions and mix-ups caused by multiple versions interfering with each other.
  • In related work @hroncok fixed a race condition when creating the LOG_DIR on first start. Great work!
  • Thanks also to @haikusw for allowing Mu's window size to reduce to the allowed minimum for the user's operating system.
  • A bug that resulted in bucket-loads of characters being sent over USB-serial as the user clicked around the serial panel was fixed by @Neradoc. Thanks!
  • Thank you @hrnciar for fixing aspects of the test suite.
  • What a relief from @prcutler for tidying up parts of the AUTHORS.rst.
  • Bravo @Gigi1111 for documenting the PyQT6 Mac work around. Hopefully this won't be needed in future releases.
  • Huge thanks to @patchanont, @prochazka-jan, @Gigi111, @Rharsia, @rahulab29, @JinnaKvG, and @j2bryson for their new welcome messages from EuroPython 2023.
  • Toodle pip to @tonybaloney for addressing pip related timeout issues.
  • Explosive thanks to @hroncok for sheBANG shenanigans.
  • Timely thanks to @haikusw for fixing timing issues in the test suite.
  • A minor but very important translation change (Polish - Dziękuję Ci) was made by @Gregor14.
  • A big дуже тобі дякую to @gromko for the initial translation into Ukrainian. Kudos to Viktoriya (Mrs. @dpgeorge) for checking the translation and suggesting improvements.
  • Finally, @xbecas assisted in bringing a Dutch translation to Mu. Dank je to @pygamegirl for checking the translation.

This will be the final version of Mu to support the old versions of PyQT we have been using (to allow users of legacy systems to continue to get updated versions of Mu). The next release will use updated versions of all our dependencies and may not work on old or out-of-date operating systems. Please remember to keep your systems up-to-date if possible!

1.2.1

This release was prepared, but due to a late breaking mishap, never released. All changes and updates have been folded into and documented in 1.2.2.

1.2.0

This release fixes some minor bugs, addresses some usability gremlins and adjusts some capabilities to make things tidier. Much of this work was done over the summer at the code-sprints at EuroPython 2022 in Dublin. Kudos and thanks to all the new contributors to Mu.

Please provide bug reports or feedback via:

https://github.com/mu-editor/mu/issues/new

  • Thanks to @keith-packard for Snek mode. [Snek](https://sneklang.org/) is a Python inspired language for processors too small even to run MicroPython.
  • @tmontes contributed changes so Mu builds to Linux AppImages (an easy way to package application for Linux).
  • Minor fixes by @stratakis in the Russian translation.
  • @carlosperate fixed many minor glitches and gremlins.
  • @carlosperate was on fire with fixes needed to ensure Mu continues to work with very old versions of OSX (as used in many educational institutions).
  • Again, thanks to @carlosperate, AppImage with Wayland no longer the setting of an environment variable to make it work properly.
  • The web mode includes simple and easy to use integration with beginner and education friendly web hosts, PythonAnywhere.
  • @agdales, @Jeffrey04, @johannaengland and @AnjaVerboven contributed new messages of the day as part of their onboarding at EuroPython.
  • @tonybaloney contributed several Windows based fixes and clean-ups.
  • @johannaengland and @prcutler were on fire tidying up and fixing docs at EuroPython.
  • A bug was fixed in the web mode relating to the resolution and/or recreation of the assets directory (in which images, css and templates were to be found).
  • Or friend at Adafruit, @tennewt made the necessary changes so Mu handles OSC commands gracefully (see the [PR](#2326) for more details).
  • New contributor, @zigit ensured "Unexpected Maker" based ESP boards are correctly detected.
  • Thanks to @Jayman2000, error messages are correctly capitalized (or not) to avoid potential confusion.

1.1.1

Inevitably, while testing 1.1.0 we found we'd missed something and caught a late breaking bug.

Please provide bug reports or feedback via:

https://github.com/mu-editor/mu/issues/new

  • Thanks to @MinoruInachi (with feedback from @odaki) for a revised Japanese translation for Mu.
  • Due to complicated dependency problems, we've updated the bundled version of Flask to 1.1.4. Thanks to @carlosperate for quickly resolving this problem.

1.1.0 (final)

What a journey to get to the 1.1.0 release of Mu. Many thanks to all the contributors who have made this version possible. All your efforts, no matter large or small, are really appreciated.

Please provide bug reports or feedback via:

https://github.com/mu-editor/mu/issues/new

  • Minor clean ups in the Makefile.
  • Thank you to @microbit-mark for updating the board IDs to support version 2.2 of the device.
  • Updates to the Chinese translation by @CSharperMantle. 謝謝。
  • Updates to the Slovak translation by @bletvaska. Ďakujem.
  • The foundations of a brand new Russian translation of Mu by @grovz with contributions from @iamdbychkov. спасибо!

1.1.0-beta.7

This is a beta release and may contain bugs or unfinished features. Please provide bug reports or feedback via: https://github.com/mu-editor/mu/issues/new

  • We expect this release to be the last beta before the final 1.1 release in the new year of 2022. Season's greetings to everyone using or contributing to Mu, and here's wishing you all a flourishing and fulfilling 2022.
  • As always there have been the usual minor bug fixes and clean ups from the core team of maintainers. Thank you so much for all that you do to support the continued development of Mu.
  • Thanks to the ever-green @keith-packard for his contribution to ensure icons on the button bar continuously scale based on the window width. This looks really smooth and slick.
  • Tinsel laden @tmontes has made a number of contributions around tooling for internationalization (i18n) of Mu. These include using the Babel package for generating the required translation files from our source code, and updating the Makefile (and make.py) so the process can be automated.
  • Xmassy @xbecas is a new joiner to the core team and we're very please to have him with us since he has done a huge amount of work on updating and curating the translation files needed for i18n. Thanks to his work, translators for all the other existing locales need not have to go through the string generation/update steps (he's done that for you already!).
  • Both @xbecas and @tmontes have made extensive updates to our pt-PT (Portuguese) translation. Feliz Natal e Próspero Ano Novo.
  • This was swiftly followed by a welcome contribution by @rffontenelle the red-nosed translator, who made extensive updates to the pt-BR (Brazilian Portuguese) translation. Many thanks Rafael, you continue to demonstrate why the Brazilian FLOSS community is such a vibrant place, and we hope your work will help beginner coders in Brazil take their first steps to join your community. Boas Festas!
  • Now that the upstream PyGame / PyGameZero packages have been updated and repackaged, @tmontes has ensured we use these (rather than our own custom builds) in our installers for Windows and OSX. Many thanks to our friends and collaborators in those projects (cc/ @illume and @lordmauve).
  • Once in royal @devdanzin's repos, stood some lowly bugs to fix. These include ensuring empty path handling is properly handled by get_save_path, correct highlighting of both f-strings and triple quoted strings in the editor widget, fixing a comment-toggling bug that deleted the first character of the next line under certain circumstances and more robust handling of environment variables. Wow, @devdanzin was on fire..! (...and has further work in development, thank you so much for your continued contributions.)
  • Carolling @carlosperate has put a huge effort in. He has triaged various crash reports, administered our continuous integration pipeline, and reviewed and merged much of the work described above. He also ensured our version numbering for Mu is no longer odd, and meets the guidelines set out in PEP440.
  • Good Tim Golden (@tjguk) fast typed out, a venv that's crisp and even. His outstanding work on making Python virtual environments work in some of the most inhospitable computing environments ever found is miraculous. Tim's genius is to know exactly the right intervention to make, and in this case his epic addition of -I to the Mu codebase will help ensure the user's virtual environments are properly isolated.
  • @tiago has updated the pup packager we use to create our installer. This should fix a problem found on the new ARM based Macs. He has also made significant progress on a cross-distro Linux package which we hope will make an appearance in the not-too-distant future.
  • Finally, Nicholas (@ntoll) promises never to do another Christmas themed changelog.

1.1.0-beta.6

This is a beta release and may contain bugs or unfinished features. Please provide bug reports or feedback via: https://github.com/mu-editor/mu/issues/new

  • Another delayed release due to busy-ness of the volunteer team involved in Mu. Thank you for your patience, bug reports and code patches.
  • There have been the usual minor bug fixes and clean ups from various regular contributors and some new ones too. Thank you for your careful and well targeted changes.
  • Carlos (@carlosperate) fixed some packaging problems relating to the iPython kernel bundled with Mu.
  • Martin (@dybber) fixed a couple of problems relating to the stopping of child processes (Flask and scripts stopped via KeyboardInterrupt in Linux).
  • The web mode checks for the availability of templates in the local directory tree before starting up. If a template directory isn't found in the expected location, then the user sees a helpful message describing the problem and what they need to do to fix it.
  • Mu's splash screen no longer always appears on top of everything else on the user's desktop. The splash screen now also logs the progress of installing the various packages needed on first install. Thanks to Carlos for these changes.
  • A new admin/settings option has been added to allow users to manually change the translation Mu uses for its interface. Updating this setting requires a restart of Mu. Zander (@ZanderBrown) contributed the icon/glyph to indicate the relevant tab is for translation related settings (not entirely obvious if Mu's UI is using a language you don't understand and you're looking for the setting that relates to translations). The icon makes this clear.
  • On some desktop windowing systems there is a bug that means windows re-open at a position higher up the screen, and so may appear off the top of the screen. We've ensured this never happens with Mu. If Mu starts with any part of the window off the screen, the window is moved to be within the dimensions of the screen. This was a weird one to track down and fix.
  • Many thanks to Ethan Spoelstra (@espoelstra) who contributed a change so Crostini on ChromeOS is used to return the correct CIRCUITPY path if it exists.
  • Huge thanks to Keith Packard (@keith-packard) for several contributions to this release of Mu. Keith refactored the way in which Mu handles pasting in the REPL window so it works correctly and more broadly across operating systems.
  • Keith also fixed some font related issues in the REPL.
  • Keith was on fire with a couple more contributions relating to SVG icons in the buttons in Mu. We're very grateful to Ben Williams (@Rybec) for putting in the work to make our button icons SVG files. Keith made the code changes to implement this.
  • Thanks to Miro Hrončok (@hroncok) for pointing out a change in Python 10 which would break some of our UI calls into PyQt, and who provided a patch to fix things.
  • Some minor clarifications in our developer documentation (https://mu.rtfd.io).

1.1.0-beta.5

This is a beta release and may contain bugs or unfinished features. Please provide bug reports or feedback via: https://github.com/mu-editor/mu/issues/new

  • We had hoped for a regular (fortnightly) release tempo. Due to the voluntary nature of Mu's development and because some of the updates in this release were quite challenging (see below), this release is a LOT later than we had planned.
  • Several of us made minor updates and fixes (such as ensuring various packages had explicit dependency versions listed, updating versions for Mu's own dependencies and so on).
  • Right clicking on highlighted text in the editor, with the REPL active, now has an additional option added to the context menu: to correctly paste the text from the editor into the REPL. Thanks to Professor Chris Rogers of Tufts University for suggesting this feature.
  • The multi-talented Dan Halbert of Adafruit very kindly fixed a bug in the Adafruit board handling when on run on new Apple M1 hardware. Thank you Dan for your valuable contribution.
  • A huge amount of work by Tim and Carlos has gone into analysing the crash reports from recent beta releases of Mu. This has resulted in significant effort to address many of the bugs encountered, many of which related to edge cases encountered by the new virtual environment feature. Tim and Carlos have created many fixes and checks to ensure these bugs are either completely fixed or are, at least, mitigated in more helpful ways. This has been a challenging and "fiddly" bit of work, so kudos and thanks, as always, to both Tim and Carlos for their continued efforts.
  • Carlos has also updated the version of MicroPython used in the BBC micro:bit mode to the latest 2.0.0-beta.5 version.
  • In addition, Carlos has ensured that the micro:bit mode flashes files onto the micro:bit using the correctly memory aligned hex string.
  • Github user ajs256 has ensured the crash reporter doesn't kick in when a KeyboardInterrupt is triggered in Mu (CTRL-C).
  • Sometimes in Mu for Linux, the expected .py file extension wasn't added to new files. This depended on the user's graphical shell. Mu now checks the output from the shell and, if requires, will add .py itself.
  • Various fixes to Mu's logging make it more robust, clear and useful.
  • Tiago fixed a late breaking bug in packaging Mu for OSX. All fixed in a matter of hours. Amazing work!

There are perhaps a couple more features we want to land in the coming weeks, and then we will start the work of ensuring internationalization is fully up to date, the website reflects the new features and various changes, and PUP will be able to produce redistributable appimages for Linux. Then we will have reached 1.1.0-final. :-)

1.1.0-beta.4

This is a beta release and may contain bugs or unfinished features. Please provide bug reports or feedback via: https://github.com/mu-editor/mu/issues/new

  • During the beta phase, we're moving to a fortnightly release cadence. Since this release is a week late, expect the next one in a week's time - 26th April.
  • Carlos made many changes to clean up the specification for required modules used by the installer. This will make supporting and tracking Mu's dependencies MUCH easier. Thank you Carlos!
  • Huge thanks to Dan Halbert of Adafruit who contributed a significant amount of refactoring to the CircuitPython mode. As a result Mu now uses the adafruit-board-toolkit module for device identification, among many other helpful changes [described in Dan's pull request](#1371). Thank you Dan..!
  • Carlos was on fire... he also fixed a bug in the file-copy dialog when the context menu was opened with an empty list of files.
  • Carlos (again), fixed some outstanding documentation issues for supporting Raspbian Buster (and newer). These are now at https://mu.rtfd.io/.
  • Carlos (again, again) tidied up various aspects of the Makefile so there is only a single source of truth for running various utilities and commands.
  • Logging was another focus for this release. Now that we have a few weeks worth of crash reports we've been able to look at the parts of the application that cause most grief and add extra-logging in various locations. Tim put in a great effort to make sure the "first run" and other virtual environment based aspects of Mu now have clearer and more useful logging and throw more useful exceptions, closer to the source of the problem, for the resulting crash report. Carlos ensured the IPython kernel installation was properly logged.
  • We ensured various key packages were pinned to particular versions to maximise compatibility with older versions of Python still found in schools.

There are many pull requests and work items currently in flight and they'll be landing very soon as the overall quality and robustness of Mu significantly improves. Many thanks to everyone who continues to help, support and contribute to the ongoing development of Mu.

1.1.0-beta.3

This is a beta release and may contain bugs or unfinished features. Please provide bug reports or feedback via: https://github.com/mu-editor/mu/issues/new

  • During beta phase, we're moving to a fortnightly release cadence. Expect beta 4 on the 12th April.
  • The final version of the Mu splash screen was delivered. Huge thanks to the extraordinarily talented Steve Hawkes ([@hawkz](https://github.com/hawkz)) of [The Developer Society](https://www.dev.ngo/) for his generous artistic support, patience and humorous approach.
  • Thanks to a recent update in [PyGame Zero](https://pypi.org/project/pgzero/), we're back to using the official package from PyPI, rather than our patched fork, in the installer.
  • Both Tim and Carlos have contributed updates, fixes and tests to address a bug affecting Windows users who may have a space in the file path upon which Mu is found. This was a difficult bug to reproduce but Tim did a lot of digging to isolate the cause with as much confidence as is possible when it comes to such things. Carlos did a bunch of thankless and fiddly test related work so testing with spaces in the path is part of our test suite. Work on this is ongoing so expect further improvements in upcoming releases. As always, many thanks for these efforts.
  • Tim addressed a wheel/sdist related problem that was causing odd side effects with regard to dependencies.
  • A strange bug, where it was not possible to install third-party packages on first run of Mu, opened up a deep rabbit hole of investigation. In the end Tim was able to fix this AND address the source of a warning message from Qt when Mu was starting for the first time.
  • The splash screen code was rewritten in such a way that objects relating to the splash screen will always be garbage-collected by Python and destroyed by Qt5. Previously, they existed for the full duration of the application, not really causing any problems, but "in limbo" nonetheless.
  • The crash reporting tool has had a minor update so the user is reminded to attach their log file to the bug report, along with an indication of where to find the log file.

1.1.0-beta.2

This is a beta release and may contain bugs or unfinished features. Please provide bug reports or feedback via: https://github.com/mu-editor/mu/issues/new

  • This is the first public beta release (beta 1 was created for testing by the core development team).
  • Many minor bug fixes to the existing new features found in beta 1 (see below).
  • Many thanks to Martin Dybdal for his work on improving the admin panel.
  • Carlos made significant changes so Mu can be packaged with very recent versions of Python. Carlos also made various changes relating to the status of Python packages contained within the official installer.
  • Many thanks to Dan Pope for assistance with an upgraded version of PyGameZero (which uses the latest version of PyGame - kudos to René and the other developers of PyGame for the recent improvements).
  • Various fixes to the UI so that panes are easier to resize and the themes are correctly applied to the REPL (thanks again to Martin for these fixes).
  • Carlos also contributed fixes relating to the micro:bit mode (compatibility with versions 1 and 2).
  • Tim has made herculean efforts to ensure the creation and checking of Mu's virtual environment is robust and easy to maintain.
  • A new crash reporting feature has been added. If Mu breaks the user will be redirected to the endpoint codewith.mu/crash with details of the crash and an option to create a bug report. This ensures Mu crashes are handled more gracefully, and the user is able to see the error that caused the crash.
  • A new animated splash screen has been added so the initial creation of Mu's virtual environment happens in such a way that the user can see progress is being made, and updates are logged on the splash screen for the user. If Mu encounters a problem at this early stage, the splash screen recovers and the new crash reporting feature kicks in. The current animation was created by Steve Hawkes (thank you) with a much more polished version promised very soon..!
  • Behind the scenes, Tiago has continued to make outstanding work on the pup tool we use to create the installers for Windows 64/32 bit and MacOS X. This beta release will be the first to use installers created with pup.
  • Known bug - on first ever start of Mu, if in Python3 mode the package manager will not work. Re-starting Mu fixes this (i.e. from second and subsequent starts). We're tracking this problem via [this issue](#1358).

1.1.0-beta.1

This is a beta release and may contain bugs or unfinished features. Please provide bug reports or feedback via: https://github.com/mu-editor/mu/issues/new

  • A new mode for ESP8266/ESP32 devices running MicroPython. This work and a significant amount of related refactoring was contributed with Viking like energy and efficiency by Martin Dybdal. This work has meant it was relatively easy to create two further new modes...
  • New mode for Lego Spike devices (thanks to Chris and Ethan at Tufts University for the help and support).
  • New mode for Raspberry Pi Pico (thanks to Zander, Martin and Carlos for the extensive testing).
  • Updates to the Microbit mode made by Spanish source-code wrangler extraordinaire (and resident Microbit expert) Carlos Pereira Atencio. The Microbit mode now supports versions 1 and 2 of the board.
  • Various bits of artwork used in the application have been updated (including a new [temporary] animated splash screen). Thanks to devdanzin for choreographing the initial work on the splash screen at short notice.
  • A complete re-write of the virtualenv and third party package handlers by the hugely talented Tim Golden. This was a long term and difficult refactoring project which Tim has delivered with great aplomb. This should make package handling much smoother and simpler.
  • Various smallish UI fixes, enhancements and smoothing by devdanzin. Thank you for these contributions - they really make a difference to the ease of use and friendly feel of Mu.
  • This version of Mu is packaged with stand-alone installers for Windows and OSX by the wonder that is PUP - a new packaging tool by our very own Tiago Montes ~ Portugal's Premier Python Packager Par-excellence. We have big plans for PUP... watch this space. :-)
  • Many many many minor bug fixes contributed by many many many people to whom we are eternally grateful.

We hope to release beta.2 very soon.

1.0.3

Bugfix.

  • Updated to the latest version of Qt to fix syntax highlighting issues in OSX.
  • Ensure CWD is set to the directory containing the script to be run in Python3 mode.
  • Updated website with instructions in light of OSX changes.

1.1.0-alpha.2

The second alpha release of 1.1. This version may contain bugs and is unfinished (more new features will be arriving in alpha 3). Please provide bug reports or feedback via: https://github.com/mu-editor/mu/issues/new

  • NEW FEATURE A brand new web mode for creating simple dynamic web applications with the Flask web framework. Currently users are able to edit Python, HTML and CSS files, run a local server and view their website in their browser. We expect to add a deployment option thanks to PythonAnywhere by the time alpha 3 is released.
  • NEW FEATURE A new Slovak translation of Mu thanks to Miroslav Biňas (GitHub user bletvaska).
  • ACHIEVEMENT UNLOCKED Fixed a problematic bug where students got into a seemingly impossible loop because the auto-save feature encountered errors and got in the way of renaming a file. We are THRILLED TO BITS that the fix for this problem was contributed by Sean Tibor, a teacher from Fort Lauderdale, Florida. Teachers coding the tools they use to teach has been a core aim for Mu, and Sean gets the gold medal (or perhaps a beer when I next see him) for unlocking this achievement.
  • RENAME At the suggestion of Adafruit's Dan Halbert, the "Adafruit" mode has been renamed to "CircuitPython" mode to reflect the growing number of manufacturers who support CircuitPython. Many thanks to Benjamin Shockley for putting the work in to make this happen.
  • NEW DEVICES Several new non-Adafruit boards have been added to the renamed CircuitPython mode. Many thanks to Shawn Hymel (SparkFun) and Gustavo Reynaga (Electronic Cats) for contributing these valuable changes.
  • Add some new free-to-reuse image and sound assets for use in PyGameZero example games.
  • Middle mouse wheel scrolling with the CTRL or CMD (on Mac) keys will zoom the UI in a consistent manner across all platforms.
  • Minor documentation updates / corrections thanks to Luke Slevinsky.
  • Refinement of the built-in educational libraries as we start to unbundle a slew of software from Mu's installer so users can install such packages from within Mu. Many thanks to the formidably talented Martin O'Hanlon for his help.
  • PyGameZero mode will look for game assets relative to the location of the game file, rather than just within the user's workspace. Thanks to the evergreen Tim Golden for this helpful update.
  • Minor corrections to the French localisation by GitHub user ogoletti.
  • UI related convenience in the new ESP mode so that the current / most recent filesystem path is used when using the file copy pane. Many thanks (as always) to Martin Dybdal for his continued work on all things ESP related in Mu.
  • A tidy up of the file save dialog so it uses Qt's built in dialog features. Thanks to Tiago Montes for being his usual awesome self.
  • Tabs are restored on startup in the correct order. Once again, this is the work of Tiago Montes.
  • The mechanism for generating the various installers and packages for Mu has been significantly refactored so that there is, if possible, always a single source for configuration information. The significant amount of effort to make this happen was, once again (again), contributed by Tiago Montes.
  • Window size and location is also restored on startup. Tiago Montes, who implemented this change, has been ON FIRE during this development phase.
  • A small (but important) change to the tool-tip for the sleep function found in MicroPython on the micro:bit has been submitted to the pedagogical legend and friend of Mu that is Dave Ames.
  • A helpful message is now sent to the output pane when the graphical debugger starts in Python 3 mode. The Shakespeare like talents of long term Mu-tineer Steve Stagg are behind this Nobel-prize-worthy literary contribution.
  • Re-add support for user defined syntax check overrides. Many thanks to Leroy Levin for making this happen..!
  • Ensure that pip is updated while creating the Windows installers. Thanks to Yu Wang for making this change.
  • Various minor updates and fixes to aid code readability.

1.1.0-alpha.1

The first alpha release of 1.1. This version may contain bugs and is unfinished (more new features will be added in later alpha releases or, depending on feedback, we may change the behaviour of existing features). Please provide bug reports or feedback via: https://github.com/mu-editor/mu/issues/new

  • NEW FEATURE Installation of third party packages from PyPI. Click on the cog icon to open the admin dialog and select the "Third Party Packages" tab.
  • NEW FEATURE Code tidy via the wonderful code formatter Black. Click the new "Tidy" button to reformat and tidy your code so it looks more readable. If your code has errors, these will be pointed out. Many thanks to Black's creator and maintainer, Łukasz Langa, for this contribution.
  • NEW FEATURE A new ESP8266 / ESP32 mode for working with these WiFi enabled cheap IoT boards. Many thanks to Martin Dybdal for driving this work forward and doing the heavy lifting. Thanks also to Murilo Polese for testing and very constructive input in the review stage of this feature.
  • OS CHANGE Due to Qt's and Travis's lack of support, Mu will only run on Mac OS 10.12 and above.
  • Ensure line-number margin is not too sensitive to inaccurate clicking from young coders trying to position the cursor at the beginning of the line. Thanks to Tiago Montes for this enhancement.
  • Fix some typos in the French translation. Thank you to GitHub user @camillem.
  • Fix a bug relating to Adafruit boards when a file on a board which is then unplugged is saved, Mu used to crash. Thanks to Melissa LeBlanc-Williams for the report of this problem.
  • Fix problem with a missing newline at the end of a file. Thanks to Melissa LeBlanc-Williams for the eagle-eyes and fix.
  • Fix for PYTHONPATH related problems on Windows (the current directory is now on the path when a script is run). Thanks to Tim Golden for this fix.
  • Update to locale detection (use Qt's QLocale class). Thanks to Tiago Montes for making this happen.
  • Fix bug relating to match selection of non-ASCII characters. Thank you to Tiago Montes for this work.
  • Fixed various encoding related issues on OSX.
  • Various minor / trivial bug fixes and tidy ups.

1.0.2

Another bugfix and translation release. No new features were added. Unless there are show-stoppers, the next release will be 1.1 with new features.

  • Updated OSX to macOS, as per Apple's usage of the terms. Thanks Craig Steele.
  • Updates and improvements to the Chinese translation. Thank John Guan.
  • Improved locale detection on macOS. Many thanks to Tiago Montes.
  • Cosmetic stripping of trailing spaces on save. Thanks to Tim Golden.
  • Update PyQt version so pip installed Mu works with Python 3.5. Thanks to Carlos Pereira Atencio.
  • Fix incorrect setting of dataTerminalReady flag. Thanks to GitHub user @wu6692776.
  • Spanish language improvements and fixes by Juan Biondi, @yeyeto2788 and Carlos Pereira Atencio.
  • Improvements and fixes to the German translation by Eberhard Fahle.
  • Fix encoding bug on Windows which caused crashes and lost files. Many thanks to Tim Golden for this work.
  • Keyboard focus loss when closing REPL is now fixed. Thanks again Tim Golden.
  • More devices for Adafruit mode along with a capability to work with future devices which have the Adafruit vendor ID. Thanks to Limor Friend for this contribution.
  • Fix a bug introduced in 1.0.1 where output from a child Python process was being truncated.
  • Fix an off-by-one error when reading bytes from UART on MicroPython devices.
  • Ensure zoom is consistent and remembered between panes and sessions.
  • Ensure mu_code and/or current directory of current script are on Python path in Mu installed from the installer on Windows. Thanks to Tim Golden and Tim McCurrach for helping to test the fix.
  • Added Argon, Boron and Xenon boards to Adafruit mode since they're also supported by Adafruit's CircuitPython.
  • The directory used to start a load/save dialog is either what the user last selected, the current directory of the current file or the mode's working directory (in order of precedence). This is reset when the mode is changed.
  • Various minor typo and bug fixes.

1.0.1

This is a bugfix and new translation release. No new features were added. The next release will be 1.1.0 with some new features.

  • Added a German translation by René Raab.
  • Added various new Adafruit boards, thanks Limor!
  • Added a Vietnamese translation by GitHub user @doanminhdang.
  • Fix bug in MicroPython REPL when dealing with colour escape sequences, thanks Martin Dybdal of Coding Pirates! Arrr.
  • Ensured anyone trying to setup on an incompatible version of Python is given a friendly message explaining the problem. Thanks to the hugely talented René Dudfield for migrating this helpful function from PyGame!
  • Added a Brasilian translation by Marco A L Barbosa.
  • Added missing API docs for PyGameZero. Thanks to Justin Riley.
  • Added a Swedish translation by Filip Korling.
  • Fixes to various metadata configuration entries by Nick Morrott.
  • Updated to a revised Chinese translation. Thanks to John Guan.
  • Added the Mappa MUndi (roadmap) to the developer documentation.
  • Added a Polish translation by Filip Kłębczyk.
  • Fixes and enhancements to the UI to aid dyslexic users by Tim McCurrach.
  • Updated to version 1.0.0.final for MicroPython on the BBC micro:bit. Many thanks to Damien George of the MicroPython project for his amazing work.
  • Many other minor bugs caught and fixed by the likes of Zander and Carlos!

1.0.0

  • Fix for font related issues in OSX Mojave. Thanks to Steve Stagg for spotting and fixing.
  • Fix for encoding issue encountered during code checking. Thanks to Tim Golden for a swift fix.
  • Fix for orphaned modal dialog. Thanks for spotting this Zander Brown.
  • Minor revisions to hot-key sequences to avoid duplications. All documented at https://codewith.mu/en/tutorials/1.0/shortcuts.
  • Update to latest version of uflash and MicroPython 1.0.0-rc.2 for micro:bit.
  • Updated to latest GuiZero in Windows installers.
  • Update third party API documentation used by QScintilla for code completion and call tips. Includes CircuitPython 3 and PyGame Zero 1.2.
  • Added swag related graphics to the repository (non-functional change).

1.0.0.rc.1

  • Various UI style clean ups to make sure the look of Mu is more consistent between platforms. Thanks to Zander Brown for this valuable work.
  • Added French translation of the user interface. Thanks to Gerald Quintana.
  • Added Japanese translation of the user interface. Thanks to @MinoruInachi.
  • Added Spanish translation of the user interface. Thanks to Carlos Pereira Atencio with help from Oier Echaniz.
  • Added Portuguese translation of the user interface. Thanks to Tiago Montes.
  • Fixed various edge cases relating to the new-style flashing of micro:bits.
  • Fixed off-by-one error in the visual debugger highlighting of code (caused by Windows newlines not correctly handled).
  • Fixed shadow module related problem relating to Adafruit mode. It's now possible to save "code.py" files onto boards.
  • Updated to latest version of uflash and MicroPython 1.0.0-rc.1 for micro:bit.
  • Various minor bugs and niggles have been fixed.

1.0.0.beta.17

  • Update to the latest version of uflash with the latest version of MicroPython for the BBC micro:bit.
  • Change flashing the BBC micro:bit to become more efficient (based on the copying of files to the boards small "fake" filesystem, rather than re-flashing the whole device in one go).
  • Ensure user agrees to GPL3 license when installing on OSX.
  • Fix Windows "make" file to correctly report errors thanks to Tim Golden.
  • The debugger in Python mode now correctly handles user-generated exceptions.
  • The debugger in Python mode updates the stack when no breakpoints are set.
  • Major update of the OSX based automated build system.
  • Modal dialog boxes should behave better on GTK based desktops thanks to Zander Brown.
  • Right click to access context menu in file panes in micro:bit mode so local files can be opened in Mu.
  • Fix bug where REPL, Files and Plotter buttons got into a bad state on mode change.
  • Update to use PyQt 5.11.
  • On save, check for shadow modules (i.e. user's are not allowed to save code whose filename would override an existing module name).
  • Automatic comment toggling via Ctrl-K shortcut.
  • A simple find and replace diaolog is now available via the Ctrl-F shortcut.
  • Various minor bugs and niggles have been squashed.

1.0.0.beta.16

  • Updated flashing in micro:bit mode so it is more robust and doesn't block on Windows. Thank you to Carlos Pereira Atencio for issue #350 and the polite reminder.
  • Updated the mu-debug runner so if the required filename for the target isn't passed into the command, a helpful message is displayed to the user.
  • Developer documentation updates.
  • Updated to the latest version of uflash, which contains the latest stable release of MicroPython for the micro:bit. Many thanks to Damien George for all his continuing hard work on MicroPython for the micro:bit.
  • Inclusion of tkinter, turtle, gpiozero, guizero, pigpio, pillow and requests libraries as built-in modules.
  • Update to latest version of Pygame Zero.
  • Fix plotter axis label bug which wouldn't display numbers if value was a float.
  • Separate session and settings into two different files. Session includes user defined changes to configuration whereas settings contains sys-admin-y configuration.
  • Update the CSS for the three themes so they display consistently on all supported platforms. Thanks to Zander Brown for his efforts on this.
  • Move the mode selection to the "Mode" button in the top left of the window.
  • Support for different encodings and default to UTF-8 where possible. Many thanks to Tim Golden for all the hard work on this rather involved fix.
  • Consistent end of line support on all platforms. Once again, many thanks to Tim Golden for his work on this difficult problem.
  • Use mu-editor instead of mu to launch the editor from the command line.
  • More sanity when dealing with cross platform paths and ensure filetypes are treated in a case insensitive manner.
  • Add support for minification of Python scripts to be flashed onto a micro:bit thanks to Zander Brown's nudatus module.
  • Clean up logging about device discovery (it's much less verbose).
  • Drag and drop files onto Mu to open them. Thanks to Zander Brown for this really useful feature.
  • The old logs dialog is now an admin dialog which allows users to inspect the logs, but also make various user defined configuration changes to Mu.
  • Plotter now works in Python 3 mode.
  • Fix problem in OSX with the mount command when detecting Circuit Python boards. Thanks to Frank Morton for finding and fixing this.
  • Add data flood avoidance to the plotter.
  • OSX automated packaging. Thanks to Russell Keith-Magee and the team at BeeWare for their invaluable help with this problematic task.
  • Refactoring and bug fixing of the visual debugger's user interface. Thank you to Martin O'Hanlon and Carlos Pereira Atencio for their invaluable bug reports and testing.
  • Various fixes to the way the UI and themes are displayed (crisper icons on HiDPI displays and various other fixes). Thanks to Steve Stagg for putting lipstick on the pig. ;-)
  • A huge number of minor bug fixes, UI clean-ups and simplifications.

1.0.0.beta.15

  • A new plotter works with CircuitPython and micro:bit modes. If you emit tuples of numbers via the serial connection (e.g. print((1, 2, 3)) as three arbitrary values) over time these will be plotted as line graphs. Many thanks to Limor "ladyada" Fried for contributing code for this feature.
  • Major refactoring of how Mu interacts with connected MicroPython based boards in order to enable the plotter and REPL to work independently.
  • Mu has a new mode for Pygame Zero (version 1.1). Thanks to Dan Pope for Pygame Zero and Rene Dudfield for being Pygame maintainer.
  • It's now possible to run mu "python3 -m mu". Thanks to Cefn Hoile for the contribution.
  • Add support for pirkey Adafruit board. Thanks again Adafruit.
  • Updated all the dependencies to the latest upstream versions.
  • Various minor bug fixes and guards to make Mu more robust (although this will always be bugs!).

1.0.0.beta.14

  • Add new PythonProcessPanel to better handle interactions with child Python3 processes. Includes basic command history and command editing.
  • Move the old "run" functionality in Python3 mode into a new "Debug" button.
  • Create a new "Run" button in Python3 mode that uses the new PythonProcessPanel.
  • Automation of 32bit and 64bit Windows installers (thanks to Thomas Kluyver for his fantastic pynsist tool).
  • Add / revise developer documentation in light of changes above.
  • (All the changes mentioned above were supported by the Raspberry Pi Foundation -- Thank you!)
  • Update / add USB PIDs for Adafruit boards (thanks Adafruit for the heads up).
  • Minor cosmetic changes.
  • Additional test cases.

1.0.0.beta.13

  • Fix to solve problem when restoring CircuitPython session when device is not connected.
  • Fix to solve "data terminal ready" (DTR) problem when CircuitPython expects DTR to be set (and it isn't by default in Qt).
  • Added initial work on developer documentation found here: http://mu.rtfd.io/
  • Updates to USB PIDs for Adafruit boards.
  • Added functionally equivalent "make.py" for Windows based developers.
  • Major refactor of the micro:bit related "files" UI pane: it no longer blocks the main UI thread.

1.0.0.beta.12

  • Update "save" related behaviour so "save as" pops up when the filename in the tab is double clicked.
  • Update the debugger so the process stops at the end of the run.
  • Ensure the current working directory for the REPL is set to mu_mode.
  • Add additional documentation about Raspberry Pi related API.
  • Update micro:bit runtime to latest MicroPython beta.
  • Make a start on developer documentation.

1.0.0.beta.11

  • Updated Python 3 REPL to make use of an out of process iPython kernel (to avoid problems with blocking Mu's UI).
  • Reverted Save related functionality to prior behaviour.
  • The "Save As" dialog for re-naming a file is launched when you click the filename in the tab associated with the code.

1.0.0.beta.10

  • Ensured "Save" button prompts user to confirm (or replace) the filename of an existing file. Allows Mu to have something like "Save As".
  • Updated to latest microfs library for working with the micro:bit's filesystem.
  • Fixed three code quality warnings found by https://lgtm.com/projects/g/mu-editor/mu/alerts/?mode=list
  • Updated API generation so the output is ordered (helps when diffing the generated files).
  • Updated Makefile to create Python packages/wheels and deploy to PyPI.
  • Explicit versions for packages found within install_requires in setup.py.
  • Minor documentation changes.

1.0.0.beta.9

  • Debian related packaging updates.
  • Fixed a problem relating to how Windows stops the debug runner.
  • Fixed a problem relating to how Windows paths are expressed that was stopping the debug runner from starting.

1.0.0.beta.8

  • Updated splash image to reflect trademark usage of logos.
  • Refactored the way the Python runner executes so that it drops into the Python shell when it completes.
  • The debug runner now reports when it has finished running a script.

1.0.0.beta.7

  • Update PyInstaller icons.
  • Fix some tests that fail on older version of Python 3.
  • Add scripts to extract API information from Adafruit and Python 3.
  • Add generated API documentation to Mu so autosuggest and call tips have data.
  • Ensure translation files are distributed.

1.0.0.beta.6

  • Pip installable.
  • Updated theme handling: day, night and high-contrast (as per user feedback).
  • Keyboard shortcuts.

1.0.0.beta.*

  • Added modes to allow Mu to be a general Python editor. (Python3, Adafruit and micro:bit.)
  • Added simple visual debugger.
  • Added iPython based REPL for Python3 mode.
  • Many minor UI changes based on UX feedback.
  • Many bug fixes.

0.9.13

  • Add ability to change default Python directory in the settings file. Thanks to Zander Brown for the contribution. See #179.

0.9.12

  • Change the default Python directory from ~/python to ~/mu_code. This fixes issue #126.
  • Add instructions for installing PyQt5 and QScintilla on Mac OS.
  • Update to latest version of uFlash.
  • Add highlighting of search matches.
  • Check if the script produced is > 8k.
  • Use a settings file local to the Mu executable if available.
  • Fix bug with highlighting code errors in Windows.
  • Check to overwrite an existing file on the micro:bit FS.
  • Start changelog