I will post here when new BBCode additions have been included, which would not be included normally.

A detailed list of BBCode and explanations can be found on the BBCode FAQ viewforum.php?f=190

Currently Installed:

Spoiler - will hide text within a spoiler window
Code:
[spoiler2]Content[/spoiler2]

Alignment - aligns text center, right or justify
Code:
[align=center]Content[/align]

Dice roller - see thread for more info viewtopic.php?f=1&t=24538
Code:
[dice]0[/dice]

Horizontal line - places a horizontal ruler through the post. You set the color and the height of the line
Code:
[hrc=black]2[/hrc]

Image Alignment - will wrap text around an image. Set align for right or left.
Code:
[imgal=right]http://[/imgal]

Youtube videos - Embed a youtube video. Include the code found in the video URL (http://www.youtube.com/watch?v=XXXXXXXXXXX, only include the XXXXXX portion)
Code:
[youtube]XXXXXXXXXXX[/youtube]

Enabled bbcode for YouTube videos.