Editing Glade Interface Designer (section)

==History and development==
The first Glade release, version 0.1, was made on 18 April 1998.<ref name=history1998 />

Glade 3 was released on 12 August 2006. According to the Glade Web site, the most noticeable differences for the end-user are:
* [[Undo]] and redo support in all operations.
* Support for multiple open projects.
* Removal of code generation.
* Contextual help system with [[Devhelp]]

Most of the difference is in the internals. Glade-3 is a complete rewrite, in order to take advantage of the new features of GTK+ 2 and the [[GObject]] system (Glade-3 was started when Glade-1 hadn't yet been ported to GTK+ 2). Therefore, the Glade-3 codebase is smaller and allows new interesting things, including:
* Catalogs of "pluggable" widgets. This means that external libraries can provide their set of widgets at runtime and Glade will detect them. In fact, Glade 3 supports only standard GTK widgets; GNOME UI and DB widgets are provided separately.
* The various Glade Tools (palette, editor, etc.) are implemented as widgets. This allows for easier integration in {{abbr|IDEs|Integrated development environment}} like [[Anjuta]], and makes it easier to change the Glade UI.

On 5 April 2011, two parallel installable stable Glade versions<ref>{{cite web |url=http://lists.ximian.com/pipermail/glade-devel/2011-April/001891.html |url-status=dead |archive-url=https://web.archive.org/web/20110606214843/http://lists.ximian.com/pipermail/glade-devel/2011-April/001891.html |archive-date=6 June 2011 |title=[Glade-devel] Glade 3.10.0 Released}}</ref><ref>[http://glade.gnome.org/news.html Glade 3.8.0 and 3.10.0 released], Tuesday 5 April 2011 by Tristan Van Berkom – Glade 3.8.0 and 3.10.0 are now available for download. 3.8 is the last stable series of Glade for GTK+2 and 3.10 is the first stable series for GTK+3</ref><ref>{{cite web |url=http://lists.ximian.com/pipermail/glade-devel/2011-January/001858.html |url-status=dead |archive-url=https://web.archive.org/web/20110112181550/http://lists.ximian.com/pipermail/glade-devel/2011-January/001858.html |archive-date=12 January 2011 |title=[Glade-devel] Glade 3.9.0 Released}}</ref> were released:
* Glade 3.8: That includes all support for GTK+ up till version 2.24. This version is to serve as a decent migration path for older projects migrating to GTK+ 3.0.
* Glade 3.10: That includes support only for widgets that are still included in GTK+ 3.0 and additionally drops support for Libglade.

On 11 June 2015 Glade 3.19.0 was released. It depends at least on GTK+ 3.16.0. Among many bug fixes this version is the first to support the widgets GtkStack, GtkHeaderBar and GtkSidebar.<ref name=glade319release>{{cite web|title=Glade 3.19.0 Released!|url=http://lists.ximian.com/pipermail/glade-devel/2015-June/002090.html|access-date=12 June 2015|archive-url=https://web.archive.org/web/20150614031300/http://lists.ximian.com/pipermail/glade-devel/2015-June/002090.html|archive-date=14 June 2015|url-status=dead}}</ref>