Michał Gołębiowski-Owczarek

In jQuery 4.0 & newer, ajax requests with `dataType: "json"` no longer replace question marks with a jQuery expando. `jQuery.ajax` docs need to be updated. See #1171 for the area...

## From https://github.com/jquery/jquery/issues/4463#issuecomment-527180911 by me: `:visible` & `:hidden` which are jQuery selector extensions defined in [src/css/hiddenVisibleSelectors.js](https://github.com/jquery/jquery/blob/3.4.1/src/css/hiddenVisibleSelectors.js). `:hidden` is defined as a negation of `:visible` so we can focus on the...

Stop using :even/:odd in examples on other pages

1

PR #1145 marked all positional selectors as deprecated & removed their usage from API pages for non-deprecated APIs. The only exceptions are `:even` & `:odd` selectors as there are no...

`jQuery.cleanData` has been in jQuery for ages. It's supposed to be private but it's a convenient hook and jQuery UI & Angular 1.x are both using it for their cleanups....

jQuery 3.0 disables the guessed dataType: 'script' for cross-domain URLs. See https://github.com/jquery/jquery/commit/b078a62013782c7424a4a61a240c23c4c0b42614 and: https://jquery.com/upgrade-guide/3.0/#breaking-change-cross-domain-script-requests-must-be-declared

The click entry contains an image instead of an example

7

The [click entry](http://api.jquery.com/click/) contains an image instead of the first example which makes the example broken.

Differentiate between compatibility patches and pure warnings

3

jQuery Migrate does two things: 1. Fills in removed APIs, warning when used. 2. Warns about deprecated APIs that still exist. It makes sense to differentiate these two for a...