Editing Tasman (browser engine)

{{short description|Discontinued browser engine}}
{{Not to be confused with|Tasmania}}
'''Tasman''' is a discontinued [[browser engine]] developed by [[Microsoft]] for inclusion in [[Internet Explorer for Mac#Internet Explorer 5 Macintosh Edition|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 [[HyperText Markup Language|HTML]] and [[Cascading Style Sheets|CSS]].<ref name="PowerofThree">{{cite web | url=http://www.macedition.com/cb/cb_20030616.php | title=The power of three | author=CodeBitch | date=June 16, 2003 | work=MacEdition.com | access-date=2007-04-01 |archive-url = https://web.archive.org/web/20061020223035/http://www.macedition.com/cb/cb_20030616.php <!-- Bot retrieved archive --> |archive-date = 2006-10-20}}</ref> Internet Explorer for Mac is no longer supported, but newer versions of Tasman were incorporated in some other Microsoft products.<ref>{{cite web | url=http://www.microsoft.com/presspass/press/2000/Jan00/MacWorldIE5.asp | title=Microsoft Unveils Faster, Simpler and More Reliable Internet Explorer 5 Macintosh Edition | date=January 5, 2000 | work=Microsoft press release | access-date=2007-04-01}}</ref>

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.<ref>{{cite web | url=http://tantek.com/projects/resume.html | title=Tantek Çelik resumé | author=Tantek Çelik | year=2004 | work=Tantek's Thoughts | access-date=2007-04-01 }}</ref> 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 [[Cascading Style Sheets|CSS]] support, with CSS 3 Selectors, CSS TV Profile and @media
* Improved [[Document Object Model|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 [[Quartz (graphics layer)|CoreGraphics]], [[Apple Type Services for Unicode Imaging|ATSUI]] and [[Core Foundation|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|Microsoft Office 2004 for Mac]] which incorporates a version of the Tasman layout engine in its email client [[Microsoft Entourage|Entourage]].<ref>{{cite web | url=http://blogs.msdn.com/omars/archive/2004/04/05/107468.aspx | title=Entourage: A journey to becoming an Office application | author=Omar Shahine | date=April 5, 2004 | work=Omar Shahine's weblog | access-date=2007-04-01}}</ref><ref>{{cite web | url=http://tantek.com/log/2004/06.html#d29t1850 | title=Subject: Moving on...; To: co-workers | author=Tantek Çelik | date=June 29, 2004 | work=Tantek's Thoughts | access-date=2007-04-01}}</ref> 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 (web browser)|Safari]]) instead.<ref>{{cite web | url=http://www.9to5mac.com/32191/outlook-2011-uses-webkit-to-render-html | title=Outlook 2011 uses Webkit to render HTML | date=2010-10-25 | access-date=2010-11-19 }}</ref> [[Microsoft Edge]], the successor to Internet Explorer, uses the [[Blink (browser engine)|Blink]] engine on [[macOS]] and [[WebKit]] on [[iOS]]/[[iPadOS]].

== See also ==
* [[Comparison of browser engines]]

== References ==
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{{Reflist}}

== External links ==
* [https://web.archive.org/web/20020619171414/http://archive.webstandards.org/macie5.txt ''Web Standards Project praises Microsoft decision to focus on standards in Mac Internet Explorer 5.0'']

{{Browser engines}}
{{Internet Explorer}}

[[Category:Browser engines]]
[[Category:Classic Mac OS software]]
[[Category:MacOS web browsers]]
[[Category:Internet Explorer]]
[[Category:2000 software]]