# K Desktop Environment 2

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{{Short description|2000 free software}}
{{Infobox software
| name                   = K Desktop Environment 2
| logo                   = KDE 2 logo.svg
| logo size              = 50px
| screenshot             = KDE 2.2.2.png
| screenshot size        = 250px
| caption                = K Desktop Environment 2.2.2
| developer              = [KDE](/source/KDE)
| released               = {{Start date and age|2000|10|23|df=yes}}
| latest release version = 2.2.2
| latest release date    = {{Start date and age|2001|11|21|df=yes}}
| programming language   = [C++](/source/C%2B%2B) ([Qt 2](/source/Qt_(framework)))
| operating system       = [Unix-like](/source/Unix-like) with [X11](/source/X11)
| platform               =
| language               =
| discontinued           = yes
| genre                  = [Desktop environment](/source/Desktop_environment)
| license                =
| website                = {{url|https://kde.org/}}
| replaces               = [K Desktop Environment 1](/source/K_Desktop_Environment_1)
| replaced_by            = [K Desktop Environment 3](/source/K_Desktop_Environment_3)
}}

'''K Desktop Environment 2''' was the second series of releases of the [K Desktop Environment](/source/KDE_Software_Compilation). There were three major releases in this series.

== Major updates ==
K Desktop Environment 2 introduced significant technological improvements compared to its predecessor.<ref name="2.0 announcement">{{cite web|url=http://www.kde.org/announcements/announce-2.0.php|title= KDE 2.0 Release Announcement|date= 23 October 2000|publisher=KDE}}</ref>

DCOP (Desktop COmmunication Protocol), a client-to-client communications protocol intermediated by a server over the standard [X11](/source/X11) ICE library.<ref name="2.0 announcement"/>

[KIO](/source/KIO), an application [I/O](/source/Input%2FOutput) library. It is network transparent and can access [HTTP](/source/HTTP), [FTP](/source/FTP), [PoP](/source/Point_of_Presence), [IMAP](/source/IMAP), [NFS](/source/Network_File_System_(protocol)), [SMB](/source/Server_Message_Block), [LDAP](/source/LDAP) and local files. Moreover, its design permits developers to "drop in" additional protocols, such as [WebDAV](/source/WebDAV), which will then automatically be available to all KDE applications. KIO can also locate handlers for specified [MIME type](/source/MIME_type)s; these handlers can then be embedded within the requesting application using the KParts technology.<ref name="2.0 announcement"/>

[KParts](/source/KParts), a [component object model](/source/Component_Object_Model), allows an application to embed another within itself. The technology handles all aspects of the embedding, such as positioning toolbars and inserting the proper menus when the embedded component is activated or deactivated. KParts can also interface with the KIO trader to locate available handlers for specific MIME types or services/protocols.<ref name="2.0 announcement"/>

[KHTML](/source/KHTML), an [HTML](/source/HTML) 4.0 compliant rendering and drawing engine. It supports many Internet technologies, including [JavaScript](/source/JavaScript), [Java](/source/Java_(programming_language)), HTML 4.0, [CSS](/source/CSS) 2, and [SSL](/source/Secure_Sockets_Layer) for secure communications. It is compatible with Netscape plugins such as [Flash](/source/Adobe_Flash). KHTML also has the capacity to embed components within itself using the KParts technology.<ref name="2.0 announcement"/>

== K Desktop Environment 2.0 ==
[[Image:KDE 2.0 Kandalf.jpg|thumb|right|250px|K Desktop Environment 2.0 showing [Kandalf](/source/Kandalf) with a tip of the day]]
[Konqueror](/source/Konqueror) was introduced as web browser, file manager and document viewer.<ref>{{Cite journal |last1=Joerges |first1=R. |last2=Mielewczik |first2=M |year=2001 |title=Konqueror erobert den Desktop. |journal=CHIP Linux-Spezial |volume=6 |pages=22–24}}</ref> It used [KHTML](/source/KHTML) for displaying web pages.<ref name="2.0 announcement"/>

K Desktop Environment 2 also shipped with the initial release of the [KOffice](/source/KOffice) suite, consisting of a spreadsheet application ([KSpread](/source/KSpread)), a vector drawing application ([KIllustrator](/source/KIllustrator)), a frame-based word-processing application ([KWord](/source/KWord)), a presentation program ([KPresenter](/source/KPresenter)), and a chart and diagram application ([KChart](/source/KChart)). Native file formats were [XML](/source/XML)-based. KOffice included a scripting language and the ability to embed individual components within each other using KParts.<ref name="2.0 announcement"/>

== K Desktop Environment 2.1 ==
The K Desktop Environment 2.1 release inaugurated the media player [noatun](/source/Noatun_(media_player)), which used a modular, plugin design. For development, K Desktop Environment 2.1 was bundled with [KDevelop](/source/KDevelop).<ref name="2.1 announcement">{{cite web|url=http://www.kde.org/announcements/announce-2.1.php|title=KDE 2.1.2 Release Announcement|date=26 February 2001 |publisher=KDE}}</ref>

== K Desktop Environment 2.2 ==
The KDE 2.2 release featured up to a 50% improvement in application startup time on Linux systems and increased stability and capabilities for HTML rendering and JavaScript. A number of new plugins were included in Konqueror. [KMail](/source/KMail) received the addition of IMAP support (including SSL and TLS), while [KOrganizer](/source/KOrganizer) got native [iCalendar](/source/iCalendar) support. Other improvements included a new plugin-based print architecture and a personalization wizard.<ref name="2.2 announcement">{{cite web|url=http://www.kde.org/announcements/announce-2.2.php|title=Free KDE Desktop Ready for Enterprise Deployment|date=15 August 2001 |publisher=KDE}}</ref>

=== KDE Restoration Project ===
After celebrating KDE’s 20th birthday with a re-release of K&nbsp;Desktop Environment&nbsp;1.1.2 on 14 October 2016,<ref name="Restoration Project">{{cite web|url=http://www.heliocastro.info/?p=291|title=KDE Project releases KDE 1 !|date=13 October 2016|access-date=16 April 2018|archive-date=13 June 2019|archive-url=https://web.archive.org/web/20190613103644/http://www.heliocastro.info/?p=291|url-status=dead}}</ref> KDE and [Fedora](/source/Fedora_(operating_system)) contributor Helio Chissini de Castro also did re-releases of Qt2 in October 2017<ref>{{cite web|url=http://www.heliocastro.info/?p=311|title=Qt2 ported for modern systems with cmake|last=Castro|first=Helio|access-date=16 April 2018}}</ref> and KDELibs&nbsp;2.2.2 in December 2017.<ref>{{cite web|url=http://www.heliocastro.info/?p=319|title=And then kdelibs 2 is ready for base consumption…|last=Castro|first=Helio|access-date=16 April 2018}}</ref><ref>{{cite web|url=https://github.com/heliocastro/kde2|title=KDE2 Restoration super repo|work=[GitHub](/source/GitHub)|access-date=16 April 2018}}</ref>

== Release schedule ==
{| class="wikitable" style="font-size: 85%; text-align: left; "
|-
!Date<ref>{{cite web|url=http://www.kde.org/announcements/|title=KDE Announcements|publisher=KDE}}</ref>
!Event
|-
<!--________________________________________2.0________________________________________-->
!colspan="2" style="background:#C0C0C0"|2.0
|-
!{{rh}} | 23 October 2000
|style="background:#DCDCDC"| '''KDE 2.0 released'''
|-
!{{rh}} | 5 December 2000
|2.0.1 Maintenance release.
|-
<!--________________________________________2.1________________________________________-->
!colspan="2" style="background:#C0C0C0"|2.1
|-
!{{rh}} | 26 February 2001
|style="background:#DCDCDC"| '''KDE 2.1 released'''
|-
!{{rh}} | 27 March 2001
| 2.1.1 Maintenance release.
|-
!{{rh}} | 30 April 2001
| 2.1.2 Maintenance release (kdelibs only).
|-
<!--________________________________________2.2________________________________________-->
!colspan="2" style="background:#C0C0C0"|2.2
|-
!{{rh}} | 15 August 2001
|style="background:#DCDCDC"| '''KDE 2.2 released'''
|-
!{{rh}} | 19 September 2001
| 2.2.1 Maintenance release.
|-
!{{rh}} | 21 November 2001
| 2.2.2 Maintenance release.
|-
!{{rh}} | 21 December 2017
| 2.2.2 Restoration re-release.
|}

== References ==
{{Reflist}}

{{KDE}}

Category:2000 software
Category:Desktop environments
Category:KDE Software Compilation

[de:K Desktop Environment#K Desktop Environment 2.x](/source/de%3AK_Desktop_Environment)

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Adapted from the Wikipedia article [K Desktop Environment 2](https://en.wikipedia.org/wiki/K_Desktop_Environment_2) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/K_Desktop_Environment_2?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.