Editing Trident (software) (section)

{{short description|Web browser engine by Microsoft first introduced in 1997}}
{{Infobox software
| name = Trident
| logo = 
| screenshot = 
| caption = 
| other_names = MSHTML<ref name="aka trident 1"/><ref name="aka trident 2"/><ref name="aka trident 3"/>
| developer = [[Microsoft]]
| released = {{Start date and age|1997|08}}
| latest release version = 8.0
| latest release date = 
| latest preview version = 
| latest preview date = 
| discontinued = yes
| replaced_by = [[EdgeHTML]]
| programming language = [[C++]]<ref name="ie8acid2"/>
| operating system = [[Microsoft Windows]]
| platform = 
| genre = [[Browser engine]]
| license = [[Proprietary software|Proprietary]]
| website = {{Official URL}}
}}
'''Trident'''<ref name="aka trident 1">{{cite web |website=New York State Office of Information Technology Services |title=A Vulnerability in Microsoft MSHTML Could Allow for Remote Code Execution |url=https://its.ny.gov/2021-108 |date=2021-09-08 |df=mdy |access-date=2023-03-14}}</ref><ref name="aka trident 2">{{cite web |website=Microsoft Support |title=Internet Explorer - Trident Engine |url=https://learn.microsoft.com/en-us/answers/questions/725337/internet-explorer-trident-engine.html}}</ref><ref name="aka trident 3">{{cite web |title=RIP Internet Explorer: Microsoft's iconic browser is being killed off in June |url=https://www.pcworld.com/article/394581/rip-internet-explorer-microsoft-killed-june-2022.html |website=PCWorld}}</ref> (also known as '''MSHTML'''<ref name="aka trident 1"/><ref name="aka trident 2"/><ref name="only mshtml name">{{cite web |website=Microsoft Security |title=Analyzing attacks that exploit the CVE-2021-40444 MSHTML vulnerability  |date=15 September 2021 |url=https://www.microsoft.com/en-us/security/blog/2021/09/15/analyzing-attacks-that-exploit-the-mshtml-cve-2021-40444-vulnerability/}}</ref>) is a [[Proprietary software|proprietary]] [[browser engine]] for the [[Microsoft Windows]] version of [[Internet Explorer]], developed by [[Microsoft]].

MSHTML debuted with the release of [[Internet Explorer 4]] in 1997. For versions [[Internet Explorer 7|7]] and [[Internet Explorer 8|8]] of Internet Explorer, Microsoft made significant changes to MSHTML's [[layout (computing)|layout]] capabilities to improve compliance with [[Web standards]] and add support for new technologies.<ref>{{cite web |url=https://docs.microsoft.com/en-us/archive/blogs/ie/details-on-our-css-changes-for-ie7 |title=Details on our CSS changes for IE7 |department=IEBlog |website=[[Microsoft Docs]] |date=2006-08-22 |access-date=2022-01-01}}</ref><ref>{{cite web |url=https://docs.microsoft.com/en-us/archive/blogs/ie/overview-of-platform-improvements-in-ie8-rc1 |title=Overview of Platform Improvements in IE8 RC1 |department=IEBlog |website=[[Microsoft Docs]] |date=2009-01-29 |access-date=2022-01-01}}</ref><ref>{{cite web |url=https://docs.microsoft.com/en-us/archive/blogs/ie/microsofts-interoperability-principles-and-ie8 |title=Microsoft's Interoperability Principles and IE8 |department=IEBlog |website=[[Microsoft Docs]] |date=2008-03-03 |access-date=2022-01-01}}</ref>

MSHTML will continue to receive security updates<ref>{{cite web |url=https://docs.microsoft.com/en-us/lifecycle/faq/internet-explorer-microsoft-edge |title=Lifecycle FAQ - Internet Explorer and Microsoft Edge |department=Microsoft Lifecycle Policy |website=[[Microsoft Docs]] |date=2021-11-03 |access-date=2022-06-13 |archive-url=https://web.archive.org/web/20220613224114/https://docs.microsoft.com/en-us/lifecycle/faq/internet-explorer-microsoft-edge |archive-date=2022-06-13 |url-status=live|quote=Microsoft is committed to supporting Internet Explorer mode in Microsoft Edge through at least 2029, on supported operating systems.}}</ref> for the IE mode of [[Microsoft Edge]] until at least 2029. However, support for new Web standards will not be added.