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Tasman (browser engine)

Not to be confused with Tasmania.

Tasman is a discontinued browser engine developed by Microsoft for inclusion in the Macintosh version of Internet Explorer 5. Tasman was an attempt to improve support for web standards, as defined by the World Wide Web Consortium. At the time of its release, Tasman was seen as the layout engine with the best support for web standards such as HTML and CSS.[1] Internet Explorer for Mac is no longer supported, but newer versions of Tasman were incorporated in some other Microsoft products.[2]

In 2003, Microsoft stopped development for Internet Explorer for Mac. In 2005, they discontinued support for the browser and in 2006 removed the application from the available Microsoft downloads site.

Tantek Çelik led the software team that developed the Tasman engine.[3] Tasman later became used as the layout engine for the MSN for Mac OS X and Office 2004 for Mac.

Version history

The first version of Tasman (referred to as "v0") was released with Internet Explorer 5 Macintosh Edition on March 27, 2000. An upgraded version (version 0.1) followed on with the release of Internet Explorer 5.1 for Mac.

On May 15, 2003, Microsoft released the subscription-only MSN for Mac OS X browser, which used an upgraded version of Tasman (version 0.9) as its layout engine. In a posting to the Mac Internet Explorer Talk list, Internet Explorer for Mac program manager Jimmy Grewal listed improvements:

  • Full Unicode support
  • Improved CSS support, with CSS 3 Selectors, CSS TV Profile and @media
  • Improved DOM support with DOM 1 Core and DOM 2 Core, Style, and Events. Also improved compatibility with Windows IE DOM.
  • XHTML 1.0 and 1.1 support, although it is not activated in MSN for Mac OS X.
  • Better support for Mac OS X features such as CoreGraphics, ATSUI and CFSocket networking.

For a while Tasman was improved as part of a number of TV set-top box projects at Microsoft reaching version 1.0. The Tasman engine is now used in the Microsoft TV Mediaroom Edition.

On May 11, 2004, Microsoft started shipping Microsoft Office 2004 for Mac which incorporates a version of the Tasman layout engine in its email client Entourage.[4][5] Since Microsoft Office for Mac 2011, Entourage has been replaced by the Macintosh version of Microsoft Outlook which uses a WebKit-based layout engine (used by Safari) instead.[6] Microsoft Edge, the successor to Internet Explorer, uses the Blink engine on macOS and WebKit on iOS/iPadOS.

See also

References

  1. ^ CodeBitch (June 16, 2003). "The power of three". MacEdition.com. Archived from the original on 2006-10-20. Retrieved 2007-04-01.
  2. ^ "Microsoft Unveils Faster, Simpler and More Reliable Internet Explorer 5 Macintosh Edition". Microsoft press release. January 5, 2000. Retrieved 2007-04-01.
  3. ^ Tantek Çelik (2004). "Tantek Çelik resumé". Tantek's Thoughts. Retrieved 2007-04-01.
  4. ^ Omar Shahine (April 5, 2004). "Entourage: A journey to becoming an Office application". Omar Shahine's weblog. Retrieved 2007-04-01.
  5. ^ Tantek Çelik (June 29, 2004). "Subject: Moving on...; To: co-workers". Tantek's Thoughts. Retrieved 2007-04-01.
  6. ^ "Outlook 2011 uses Webkit to render HTML". 2010-10-25. Retrieved 2010-11-19.
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