dean.edwards.name/IE7/history/

• min/max-width in quirks mode
• empty selectors
• quoted URLs in generated content
• memory leak fix for PNG solution
• "none" is now the default for min/max-width/height
• min/max-width/height preserved by document.recalc()

• new license: LGPL
• support for printing
• support for @media (screen and print)
• support for <object type=image/*>
• fixed Array.push/pop and String.replace for IE5.0
• alt/title fixed for <img>
• more CSS selectors:
  • :checked/:disabled/:enabled/:indeterminate
  • :contains()
  • :not()
  • :target
• more CSS properties:
  • CSS border-spacing
  • cursor:pointer (IE5)
  • content:attr()
  • opacity
  • margin:auto (quirks mode)
  • overflow:visible (ie7-overflow.js)
  • max-height works after all - it was overflow:visible that was broken :-)
• you can now define IE7 variables inside the IE7 script
• turn off the box-model fix: IE7_BOX_MODEL=false;
• ie7-core.js now applies no fixes itself
• HTML header loaded to provide correct defaults
• new modules:
  • faster loading if HTCs supported (ie7-load.htc)
  • ie7-xml-extras.js
  • new bug fixing module (ie7-squish.js)
  • ie7-quirks.js (private module)
  • document.recalc() (ie7-recalc.js)
  • dynamic attribute selectors (ie7-dynamic-attributes.js)
  • ie7-overflow.js
• several modules renamed:
  • ie7-png.js becomes ie7-graphics.js
  • ie7-box-model.js becomes ie7-layout.js
  • ie7-css2.js becomes ie7-css2-selectors.js
  • ie7-css3.js becomes ie7-css3-selectors.js
• performance improvements
• implementation eased with the removal of high ASCII encoding
• smaller packed file thanks to new packer
• decoupled from cssQuery
• Bug fixes:
  • PNG rollovers now work
  • fixed positioning - never-ending scroll
  • nth-child
  • generated content inline by default
  • htmlFor ([for=foo])
  • margin collapse (for elements with "layout")
  • 'Don\'t' in generated content
  • first-letter/first-line now works

• Bug fixes:
  • quoted URLs in CSS
  • <base> tag no longer causes problems
  • right/bottom (several bugs)
  • fixed elements contained by other fixed/relative/absolute elements
  • unicode escaping in generated content
  • correct text alignment of generated content
  • attribute selectors now escaped (prevent RegExp problems)
  • <label> fix applied to all form controls (not just <input> element)
  • background-position: scroll now works
  • prevent unnecessary server requests for images etc
  • security warnings on secure servers now avoided
  • several other minor bugs reported on the IE7 Forum

• support for unicode escaping in generated content
• support for % values for min/max-width/height
• the default setting for IE7_PNG_SUFFIX is now -trans.png.

• patch to version 0.7

This version sees a departure from the use of DHTML Behaviors. IE7 is now a pure JavaScript solution. Implementation is now via a <script> tag rather than a style sheet inclusion.

• IE7 is now a pure JavaScript solution
• improved page load speed
• :lang()
• support for generated content (:before/:after/content:)
• improved support for right/bottom
• more CSS selectors:
  • nth-child()
  • nth-last-child()
  • only-child()
  • [attr^="value"], [attr$="value"] and [attr*="value"]
• CSS module split into two modules (ie7-css2.js and ie7-css3-selectors.js)
• additional fixes:
  • double margin bug
  • unscrollable content
  • form submission - only submit successful controls
• bug fixes (especially min/max-width/height and fixed positioning)

• patch to previous version

• support for IE5.0
• IE7 is now configurable
• support for strict CSS
• support for fixed positioning
• support for DHTML/JavaScript removed
• support for the following CSS selectors:
  • [attr|=value]

• downloadable version of 0.5.0

• I am now recommending that you wrap the IE7 style sheet inclusion in conditional comments.
• support for min-width, max-width and min-height.
• support for PNG transparency
• support for box-sizing: content-box
• IE7’s CSS query engine made available as a separate JavaScript file.
• support for the following CSS selectors:
  • adjacent ~ selector
  • :empty

• support for <abbr/>
• :active bug fixed

• development started