# Change log

## 2.0 (2019-06-20)

- Updated `StaticFilesPanel` to be compatible with Django 3.0.
- The `ProfilingPanel` is now enabled but inactive by default.
- Fixed toggling of table rows in the profiling panel UI.
- The `ProfilingPanel` no longer skips remaining panels or middlewares.
- Improved the installation documentation.
- Fixed a possible crash in the template panel.
- Added support for psycopg2 `Composed` objects.
- Changed the Jinja2 tests to use Django’s own Jinja2 template backend.
- Added instrumentation to queries using server side cursors.
- Too many small improvements and cleanups to list them all.

### Backwards incompatible changes

- Removed support for Python 2.
- Removed support for Django’s deprecated `MIDDLEWARE_CLASSES` setting.
- Restructured `Panel` to execute more like the new-style Django MIDDLEWARE. The `Panel.__init__()` method is now passed `get_response` as the first positional argument. The `Panel.process_request()` method must now always return a response. Usually this is the response returned by `get_response()` but the panel may also return a different response as is the case in the `RedirectsPanel`. Third party panels must adjust to this new architecture. `Panel.process_response()` and `Panel.process_view()` have been removed as a result of this change.

The deprecated API, `debug_toolbar.panels.DebugPanel`, has been removed. Third party panels should use `debug_toolbar.panels.Panel` instead.

The following deprecated settings have been removed:

- `HIDDEN_STACKTRACE_MODULES`
- `HIDE_DJANGO_SQL`
- `INTERCEPT_REDIRECTS`
- `RESULTS_STORE_SIZE`
- `ROOT_TAG_ATTRS`
- `TAG`

## 1.11 (2018-12-03)

- Use `defer` on all `<script>` tags to avoid blocking HTML parsing, removed inline JavaScript.
- Stop inlining images in CSS to avoid Content Security Policy errors altogether.
- Reformatted the code using black.
- Added the Django mail panel to the list of third-party panels.
- Convert system check errors to warnings to accomodate exotic configurations.
- Fixed a crash when explaining raw querysets.
- Fixed an obscure unicode error with binary data fields.
- Added MariaDB and Python 3.7 builds to the CI.

## 1.10.1 (2018-09-11)

- Fixed a problem where the duplicate query detection breaks for non-hashable query parameters.
- Added support for structured types when recording SQL.
- Made Travis CI also run one test no PostgreSQL.
- Added fallbacks for inline images in CSS.
- Improved cross-browser compatibility around `URLSearchParams` usage.
- Fixed a few typos and redundancies in the documentation, removed mentions of django-debug-toolbar’s jQuery which aren’t accurate anymore.

## 1.10 (2018-09-06)

- Removed support for Django < 1.11.
- Added support and testing for Django 2.1 and Python 3.7. No actual code changes were required.
- Removed the jQuery dependency. This means that django-debug-toolbar now requires modern browsers with support for `fetch`, `classList` etc.
- Added support for the server timing header.
- Added a differentiation between similar and duplicate queries. Similar queries are what duplicate queries used to be (same SQL, different parameters).
- Stopped hiding frames from Django’s contrib apps in stacktraces by default.
- Lots of small cleanups and bugfixes.

## 1.9.1 (2017-11-15)

- Fix erroneous `ContentNotRenderedError` raised by the redirects panel.

## 1.9 (2017-11-13)

This version is compatible with Django 2.0 and requires Django 1.8 or later.

### Bugfixes

- The profiling panel now escapes reported data resulting in valid HTML.
- Many minor cleanups and bugfixes.

## 1.8 (2017-05-05)

This version is compatible with Django 1.11 and requires Django 1.8 or later.

### Backwards incompatible changes

- `debug_toolbar.middleware.show_toolbar` (the default value of setting `SHOW_TOOLBAR_CALLBACK`) no longer returns `False` for AJAX requests. This is to allow reusing the `SHOW_TOOLBAR_CALLBACK` function to verify access to panel views requested via AJAX. Projects defining a custom `SHOW_TOOLBAR_CALLBACK` should remove checks for AJAX requests in order to continue to allow access to these panels.

### Features

- New decorator `debug_toolbar.decorators.require_show_toolbar` prevents unauthorized access to decorated views by checking `SHOW_TOOLBAR_CALLBACK` every request. Unauthorized access results in a 404.
- The `SKIP_TEMPLATE_PREFIXES` setting allows skipping templates in the templates panel. Template-based form widgets’ templates are skipped by default to avoid panel sizes going into hundreds of megabytes of HTML.

### Bugfixes

- All views are now decorated with `debug_toolbar.decorators.require_show_toolbar` preventing unauthorized access.
- The templates panel now reuses contexts’ pretty printed version which makes the debug toolbar usable again with Django 1.11’s template-based forms rendering.
- Long SQL statements are now forcibly wrapped to fit on the screen.

## 1.7 (2017-03-05)

### Bugfixes

- Recursive template extension is now understood.
- Deprecation warnings were fixed.
- The SQL panel uses HMAC instead of simple hashes to verify that SQL statements have not been changed. Also, the handling of bytes and text for hashing has been hardened. Also, a bug with Python’s division handling has been fixed for improved Python 3 support.
- An error with django-jinja has been fixed.
- A few CSS classes have been prefixed with `djdt-` to avoid conflicting class names.

## 1.6 (2016-10-05)

The debug toolbar was adopted by jazzband.

### Removed features

- Support for automatic setup has been removed as it was frequently problematic. Installation now requires explicit setup. The `DEBUG_TOOLBAR_PATCH_SETTINGS` setting has also been removed as it is now unused. See the installation documentation for details.

### Bugfixes

- The `DebugToolbarMiddleware` now also supports Django 1.10’s `MIDDLEWARE` setting.

## 1.5 (2016-07-21)

This version is compatible with Django 1.10 and requires Django 1.8 or later.

Support for Python 3.2 is dropped.

### Bugfixes

- Restore compatibility with sqlparse ≥ 0.2.0.
- Add compatibility with Bootstrap 4, Pure CSS, MDL, etc.
- Improve compatibility with RequireJS / AMD.
- Improve the UI slightly.
- Fix invalid (X)HTML.

## 1.4 (2015-10-06)

This version is compatible with Django 1.9 and requires Django 1.7 or later.

### New features

- New panel method `debug_toolbar.panels.Panel.generate_stats()` allows panels to only record stats when the toolbar is going to be inserted into the response.

### Bugfixes

- Response time for requests of projects with numerous media files has been improved.

## 1.3 (2015-03-10)

This is the first version compatible with Django 1.8.

### New features

- A new panel is available: Template Profiler.
- The `SHOW_TOOLBAR_CALLBACK` accepts a callable.
- The toolbar now provides a JavaScript API.

### Bugfixes

- The toolbar handle cannot leave the visible area anymore when the toolbar is collapsed.
- The root level logger is preserved.
- The `RESULTS_CACHE_SIZE` setting is taken into account.
- CSS classes are prefixed with `djdt-` to prevent name conflicts.
- The private copy of jQuery no longer registers as an AMD module on sites that load RequireJS.

## 1.2 (2014-04-25)

### New features

- The `JQUERY_URL` setting defines where the toolbar loads jQuery from.

### Bugfixes

- The toolbar now always loads a private copy of jQuery in order to avoid using an incompatible version. It no longer attemps to integrate with AMD.

  This private copy is available in `djdt.jQuery`. Third-party panels are encouraged to use it because it should be as stable as the toolbar itself.

## 1.1 (2014-04-12)

This is the first version compatible with Django 1.7.

### New features

- The SQL panel colors queries depending on the stack level.
- The Profiler panel allows configuring the maximum depth.

### Bugfixes

- Support languages where lowercase and uppercase strings may have different lengths.
- Allow using cursor as context managers.
- Make the SQL explain more helpful on SQLite.
- Various JavaScript improvements.

### Deprecated features

- The `INTERCEPT_REDIRECTS` setting is superseded by the more generic `DISABLE_PANELS`.

## 1.0 (2013-12-21)

This is the first stable version of the Debug Toolbar!

It includes many new features and performance improvements as well a few backwards-incompatible changes to make the toolbar easier to deploy, use, extend and maintain in the future.

You’re strongly encouraged to review the installation and configuration docs and redo the setup in your projects.

Third-party panels will need to be updated to work with this version.