WordPress.org

1.8.3

• Added support for Youtube SSL URLs: https://
• Added support for Youtube embed URLs: http://www.youtube.com/v/VIDEO_ID and http://www.youtube.com/embed/VIDEO_ID
• Allows the TinyMCE button to appear on any rich text editor (i.e. text editor in a widget)
• Improved mobile detection
• Upgrading will not break any website you may have built with previous versions. Upgrade with confidence.

1.8.2

• Improved compatibility for mobile browsers.
• Added new custom parameter: embedcode.
• Upgrading will not break any website you may have built with previous versions. Upgrade with confidence.

1.8.1

• Added support for the Youtube AS2 player (Flash only). Amongst other things you can force HD playback by default (720p).
• Improved compatibility for RSS readers and mobile browsers.
• Added fallback solution for fixed-width videos (static layout) so that fixed-width videos don't break or overflow a design/layout.
• Improved automatic height calculation. 16:9 and 4:3 aspect ratios are now 100% precise.
• Upgrading will not break any website you may have built with previous versions. Upgrade with confidence.

1.8

• Built dedicated website for documentation, live demos and support (through comments and Uservoice). Check it now!
• Added two new custom parameters: ratio and class.
• Added two aliases for the url paramater: v and video. Use the one you prefer.
• Added state-of-the-art support for all kind of website layouts. Now Youtube videos can be inserted in elastic & fluid layouts as well as mobile designs without breaking or overflowing the design/layout. Please check the live demos in the plugin website.
• Added state-of-the-art support for RSS readers. Youtube videos will show up perfectly in major RSS readers.
• It's been a huge improvement in terms of layout and compatibility. No other video plugin for wordpress that I know offers this kind of flexibility and compatibility.
• Upgrading will not break any website you may have built with previous versions. Upgrade with confidence.

1.7.4

• Added h and w as alternative shortcode parameter names to height and width respectively.
• Removed the "type" attribute from the iframe and added the "allowfullscreen" attribute when fullscreen is enabled.
• Improved dialog UI

1.7.3

• The get_hl() method is back to set the UI & captions/subtitles language according to the visitor's language (automatically detected) for a very specific case: When the visitor's browser does not support Javascript or it is disabled. In this case, the old embed code (Flash only) will be embedded so we have to detect the visitor's language (otherwise en_US would be set as default).
• Now the get_hl() method is invoked only once per page load. Before this release it was invoked for every shortcode/video so the plugin execution is faster.
• Added <noembed> tag to extend compatibility with browsers with no Javascript support and no Flash support. The following message (styled exactly like Youtube's) will be shown to the user on each video: The Adobe Flash Player is required for video playback. Get the latest Flash Player
• Other internal improvements.

1.7.2

• Improvement: Removed get_hl() method (private use) since it isn't needed anymore. Youtube detects the user language and sets the UI & captions/subtitles language accordingly.
• Improvement: When javascript is disabled the CSS selector used to hide the iframe is now scoped by the class youtube_sc. Before this release the CSS selector used could override any iframe with a class youtube-player.
• Other improvements (faster execution & more robust). It's recommended to update.

1.7.1

• Added new custom parameter: title. Very useful for SEO and Accessibility (WCAG 1.0+). This parameter sets the "title" HTML attribute on both iframe & object HTML elements. Its value should be a description of the video's content or several tags related to it. Please, see example 4 to know how to use it in templates.
• Bugfix: TinyMCE editor: Shortcode wouldn't work if the comma separated list of video IDs in playlist had any space character.

1.7

• Added TinyMCE button so that users can insert and customize a Youtube video easily. The shortcode is automatically generated and inserted in the editor.
• Added new official parameters: color, theme
• Added donation link
• Flash player ActionScript version 3 by default (AS2 is deprecated according to Youtube official docs)
• wp-content directory can be renamed or moved to a different location. For more info read Moving wp-content
• Code refactored to clean up the gobal namespace (now there's only a class named Youtube_shortcode).

1.6

• The video's html wrapper tag, div by default, changes automatically to p if the shortcode is used in a post/page wysiwyg text editor to avoid weird cases with WP formatting functions and other filters or plugins.

1.5

• Added new official parameters: autohide, controls, modestbranding, origin, playlist

1.4

• Force "wmode=transparent" on Youtube's new embed code (iframe) to solve some design issues when Flash is used (layers appearing below Flash video).

1.3

• Youtube's new embed code (iframe) is from now on the preferred way of embedding videos and supports all customization parameters.
• swfobject javascript library removed. Client side detection of Adobe's Flash is no longer needed.

1.2

• Added "wmode=transparent" to solve some design issues (layers appearing below Flash video)

1.1

• Improved automatic height calculation.
• Added support for web browsers with no Javascript support.