Anki

- Use a new approach for recording audio. If you encounter any issues,
the old PyAudio driver can be selected in the Preferences screen. The old
driver will likely be retired in the future, so please let us know
if the default system does not work for you.
- All built-in Windows TTS voices should now be supported on recent Windows 10
releases (thanks to Ryan).
- Fix the Reposition tool in the Browse screen not following the sort
order.
- Reduce the default fade time in the review screen.
- The ANGLE video driver can now be selected in the Preferences on Windows.
- Fix some instances of the sync indicator remaining on after sync (thanks to Rumo).
- Work around --text-fg appearing in fields.
- Fix link in about screen (thanks to Abdo).
- Fix '1' being shown instead of the correct number in some Russian translations.
- Fixed invisible characters when adding new card templates (thanks to Henrik).
- Fixed duplicate check getting confused by non-breaking spaces (thanks to abdo).
- Don't throw error when computer hostname is invalid.
- Other minor changes (thanks to Henrik & k12sh)

For developers:

- Protobuf binaries are now used to speed up the initial build.
- Fixed Python code completion, and added some info to docs/development.md
- ./run now runs Anki with Python warnings enabled - PRs that fix any that come
up would be welcome (thanks cecini for the first!)

- Fixed filtered decks not honoring sort order.
- Fixed review screen not automatically scrolling to answer (thanks to Henrik).
- The deck options screen now limits minimum ease to 131%.

For developers:

- Added a scripts/build command to build the redistributable wheels.
- The Rust worker is disabled by default, as some users had trouble building with it.

Notable changes:

- Alternate builds have been discontinued. If you are using a 32 bit system, or
a macOS version older than 10.13, Anki 2.1.35 is the last release you will be able
to update to.
- MathJax has been updated to version 3, thanks to Henrik. It should render faster
than before. If you were customizing the MathJax configuration using Javascript,
you will need to
[use a new method](https://github.com/ankitects/anki/pull/809#issuecomment-721438738).
- A separate mpv process is now used to play videos on Windows, which should
solve issues with playing getting stuck, thanks to Kelciour.
- The handling of wildcards and escape characters in search [has been
reworked](https://docs.ankiweb.net/#/searching?id=matching-special-characters)
to be more consistent, thanks to Rumo.
- Early startup messages are now translable, thanks to Abdo.
- When cards are rescheduled in the browse screen, a review entry log is now created.
- The main card area is now focused instead of the bottom area during review,
which allows using the keyboard to scroll, thanks to Henrik.

Bugfixes:

- Fixed corrupt indexes when checking database.
- Fixed duplicate search when sort field is not first field (thanks to Abdo).
- Fixed error when switching to note type with fewer fields.
- Fixed invalid utf8 in notes when checking database.
- Fixed invisible scrollbar in night mode + browser.
- Fixed issues with "find duplicates" (thanks to Abdo)
- Fixed some issues with adding/renaming decks (thanks to Cecini).
- Other minor fixes.

For developers:

- Anki is now built using Bazel. This leads to more reliable builds, and reduces
the number of dependencies you need to manually install. Please see docs/ for
updated build instructions, and report any issues you encounter on the user
forums.
- The minimum Python version has been updated to 3.8.
- The wheels available on PyPI support both Python 3.8 and 3.9.
- All translations have been migrated to [Fluent](https://translating.ankiweb.net/#/anki/developers).
- Normal and night mode theming now uses CSS variables, making it easier to override in add-ons.
- The congrats screen, burying/suspending, filtered deck building/emptying, browser sidebar, and card
reposition/reset have been reworked. If you were modifying them in an add-on, your add-on
may need updating. For the congratulations screen, see the new webview_did_inject_style_into_page
hook

Thanks to all the people who have contributed bugfixes and code/doc updates:
Abdo, Lukkea, Akshara, Kelciour, David, Henrik, Colin, Johan, Piotr, Andreas,
Arthur, Alan, RumovZ, Cecini, Soren, Krish, ianki, Cyphar and kaczmarj, in no
particular order.

Thanks also to all of the people who have contributed translations for this
and previous releases: https://i18n.ankiweb.net/contributors/

This is the last Anki version that supports 32 bit Windows machines, and macOS 10.12 and older. If you use either of those, please pick the -alternate version.

- Fix a bug in Anki 2.1.29+ that caused excessive memory and CPU usage
on long-running operations that show a progress bar, such as importing.
- Roll back Mac and Windows builds to Qt 5.14 again,
as there are still issues with 5.15.
- Fix display issue in graphs on alternate Mac build.
- Fix preview not updating on multiple selection (thanks to abdo).
- Fix old content appearing when flagging immediately
after typing.
- Fix some handling of `*` in searches.
- Sidebar now correctly escapes some characters (thanks to abdo).

- Fix a bug in Anki 2.1.28+ where a newly created deck config would default to
an ease of 130%. When updating, Anki will automatically change any deck
configs with an ease of 130% back to 250%, and change any cards using those
deck configs with a low ease back to an ease of 250%. Users who updated from
an older Anki version and did not add new deck configurations should not be
affected. If you have deliberately set an initial ease of 130%, please change
it to 131% or greater prior to upgrading, so that Anki leaves your settings
alone. Thanks to Aleksa for discovering the issue.
- Update the standard builds to the latest GUI toolkit version.
Please report any improvements or regressions you notice.
- Dropped audio plays automatically again (thanks to abdo).
- Revert to older sound playing behaviour to work around issues
(thanks to kelciour).
- is:due now stops at now+learn ahead limit, instead of end of day.
- Various improvements/fixes, some thanks Aleksa & Henrik.

- Access More button in review screen with 'm' (thanks to ANH).
- Audio no longer plays when dropped/pasted (thanks to ANH).
- Fix bulk tag adding not adding tags if tag is a substring of an existing tag (thanks to Soren)
- Fix cards not being unburied if leaving Anki open and the first action of a new day is a sync.
- Fix drag&drop into existing content (thanks to ANH).
- Fix error when add-ons tried to access note/template in card template screen.
- Fix next learn message in congrats screen.
- Fix nonbreaking spaces in filenames not being handled properly.
- Fix text in export file selector (thanks to ANH).
- Fix timeouts in full syncs and media syncs again.