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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.
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:
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 [4] [5] Since Microsoft Office for Mac 2011, Entourage has been replaced by the Macintosh version of Microsoft Outlook which uses a WebKit-based layout engine (used by Safari) instead.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.
Internet Explorer is a retired series of graphical web browsers developed by Microsoft that were used in the Windows line of operating systems. While IE has been discontinued on most Windows editions, it remains supported on certain editions of Windows, such as Windows 10 LTSB/LTSC. Starting in 1995, it was first released as part of the add-on package Plus! for Windows 95 that year. Later versions were available as free downloads or in-service packs and included in the original equipment manufacturer (OEM) service releases of Windows 95 and later versions of Windows. Microsoft spent over US$100 million per year on Internet Explorer in the late 1990s, with over 1,000 people involved in the project by 1999. New feature development for the browser was discontinued in 2016 and ended support on June 15, 2022 for Windows 10 Semi-Annual Channel (SAC), in favor of its successor, Microsoft Edge.
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Tantek Çelik is a Turkish-American computer scientist, currently the Web standards lead at Mozilla Corporation. Çelik was previously the chief technologist at Technorati. He worked on microformats and is one of the principal editors of several Cascading Style Sheets (CSS) specifications. He is author of HTML5 Now: A Step-by-Step Video Tutorial for Getting Started Today (ISBN 978-0-321-71991-1).
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