Citadel/UX
 | |
 Screenshot of citadel groupware 2011 | |
| Developer(s) | citadel |
|---|---|
| Initial release | Before 1988 |
| Stable release | 996[1] 
/ 29 September 2023 |
| Repository | |
| Written in | Groupware |
| License | 2007: GPL-3.0-only[2][3][4][5] 2006: GPL-2.0-only[6] 1998: GPL-2.0-or-later[7] |
| Website | citadel |
Citadel (originally referred to as "Citadel/UX" to disambiguate it from other implementations) is a collaboration suite (messaging and groupware) that is directly descended from the
groupware
platform.
In order to modernize the Citadel platform for the
XMPP. All protocols offer OpenSSL
encryption for additional security.
Users of Citadel systems also have available to them a web-based user interface which employs Ajax style functionality to allow application-like interaction with the system.
Citadel uses the Berkeley DB database for all of its data stores, including the message base.
Citadel became
relicensed to the GPL-2.0-only license.[6] In 2007 Citadel was relicensed again to the GPL-3.0-only license.[5][9]
References
- ^ "Release version 996".
- ^ "Updated the copyright declaration in several modules". 2012-07-02.
- ^ "More license declarations". 2009-10-15.
- ^ "Began (but did not finish) applying GPL3+ declarations to each source file". 2009-10-14.
- ^ a b "Move to GPL v3". 2007-07-02.
- ^ a b "Clarify that we are GPLv2". 2006-01-26.
- ^ a b "Citadel/UX release 5.01". 1998-07-11.
- ^ "[seul-edu] Citadel/UX". archives.seul.org. Retrieved 2021-08-05.
- ^ "Citadel adopts GPLv3". 2007-07-30. Archived from the original on 2007-08-17.
The developers of the Citadel messaging and collaboration system are pleased to announce that we are now releasing all of our software under version 3 of the GNU General Public License.
External links
- Official website
- Review of Citadel by Carla Schroder of Enterprise Networking Planet: Part 1 Part 2
- Mod_auth_citadel, an Apache Web Server authentication module for Citadel by Stuart Cianos
