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Comparison of issue-tracking systems
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Notable issue tracking systems, including bug tracking systems, help desk and service desk issue tracking systems, as well as asset management systems, include the following. The comparison includes client-server application, distributed and hosted systems.

Contents

• General
• Features
• Input interfaces
• Notification interfaces
• Revision control system integration
• Authentication methods
• Containers
• See also
• Notes
• References
• External links

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General

System names listed with a light purple background are no longer in active development.

| System | Creator |
|---|---|
| Apache Bloodhound | Apache Software Foundation |
| Apache Allura | Apache Software Foundation |
| Assembla Tickets | Assembla |
| Axosoft | Axosoft LLC |
| Azure DevOps Server (Team Foundation Se… | Microsoft |
| Bugzilla | Mozilla Foundation |
| Debbugs | Debian |
| Dolibarr | Dolibarr community |
| Faveo Helpdesk | Ladybird Web Solution |
| FogBugz | Glitch |
| Fossil | D. Richard Hipp |
| FusionForge | Various ( open source contributors) |
| GLPI | INDEPNET |
| GNATS | Free Software Foundation |
| Helix ALM (aka TestTrack) | Perforce Software |
| HP Quality Center | Hewlett-Packard , formerly Mercury Inte… |
| Jira | Atlassian |
| Launchpad | Canonical Ltd. |
| MantisBT | Various ( open source contributors) |
| Microsoft Dynamics CRM | Microsoft |
| OpenProject | OpenProject Foundation e.V. |
| org-mode | Carsten Dominik |
| OTRS | OTRS |
| Phabricator | Facebook |
| Redmine | Jean-Philippe Lang |
| Request Tracker | Best Practical Solutions, LLC |
| Roundup | Ka-Ping Yee, Richard Jones |
| StarTeam | originally Starbase Corporation, curren… |
| Supportworks | Hornbill Systems |
| SysAid | SysAid Technologies |
| Trac | Edgewall Software |
| TrackerSuite.Net | Automation Centre |
| Trello | Atlassian |
| Tuleap | enalean |
| Twproject | Open Lab |
| Wrike | Wrike, Inc. |
| YouTrack | JetBrains s.r.o. |
| Zammad | Zammad GmbH |
| System | Creator |

| System | License |
|---|---|
| Apache Bloodhound | Apache License |
| Apache Allura | Apache License 2.0 |
| Assembla Tickets | Proprietary , hosted. Available for fre… |
| Axosoft | Proprietary , Saas |
| Azure DevOps Server (Team Foundation Se… | Proprietary, Commercial |
| Bugzilla | MPL |
| Debbugs | GPL |
| Dolibarr | GPL |
| Faveo Helpdesk | Open Software License |
| FogBugz | Proprietary , Saas |
| Fossil | BSD |
| FusionForge | GPLv2 |
| GLPI | GPLv2 |
| GNATS | GPL |
| Helix ALM (aka TestTrack) | Proprietary |
| HP Quality Center | Proprietary |
| Jira | Proprietary. Free community licenses fo… |
| Launchpad | AGPL |
| MantisBT | GPL |
| Microsoft Dynamics CRM | Proprietary, Commercial |
| OpenProject | GPL |
| org-mode | GPL |
| OTRS | Proprietary |
| Phabricator | Apache License |
| Redmine | GPLv2 |
| Request Tracker | GPLv2 |
| Roundup | MIT license (ZPL v 2.0 for the template… |
| StarTeam | Proprietary |
| Supportworks | Proprietary |
| SysAid | Proprietary |
| Trac | New BSD |
| TrackerSuite.Net | Proprietary |
| Trello | Saas |
| Tuleap | GPLv2 |
| Twproject | Proprietary , some parts LGPL |
| Wrike | Proprietary, hosted |
| YouTrack | Proprietary , stand-alone and hosted, f… |
| Zammad | AGPL |
| System | License |

| System | Implementation language(s) |
|---|---|
| Apache Bloodhound | Python |
| Apache Allura | Python |
| Assembla Tickets | Ruby |
| Axosoft | C# , .NET |
| Azure DevOps Server (Team Foundation Se… | .NET |
| Bugzilla | Perl |
| Debbugs | Perl |
| Dolibarr | PHP |
| Faveo Helpdesk | PHP |
| FogBugz | ASP on Windows , PHP on macOS , FreeBSD… |
| Fossil | C |
| FusionForge | PHP |
| GLPI | PHP |
| GNATS | C , Web Front-end In Perl |
| Helix ALM (aka TestTrack) | C++ , Qt5 , JavaScript |
| HP Quality Center | .NET (client), Java (server) |
| Jira | Java |
| Launchpad | JavaScript , Python |
| MantisBT | PHP |
| Microsoft Dynamics CRM | .NET |
| OpenProject | Ruby , JavaScript |
| org-mode | Emacs |
| OTRS | Perl , JavaScript |
| Phabricator | PHP |
| Redmine | Ruby |
| Request Tracker | Perl |
| Roundup | Python |
| StarTeam | C++ , Java , etc. |
| Supportworks | C++ and PHP |
| SysAid | C# , Java |
| Trac | Python |
| TrackerSuite.Net | C# |
| Trello | Node.js |
| Tuleap | php |
| Twproject | Java |
| Wrike | Java |
| YouTrack | Java |
| Zammad | Ruby |
| System | Implementation language(s) |

| System | Back end |
|---|---|
| Apache Bloodhound | MySQL , PostgreSQL , SQLite |
| Apache Allura | MongoDB |
| Assembla Tickets | MySQL |
| Axosoft | SQL Server |
| Azure DevOps Server (Team Foundation Se… | MS SQL Server 2005 & 2008 |
| Bugzilla | MySQL , Oracle , PostgreSQL , SQLite |
| Debbugs | Flat file , Berkeley DB indexes |
| Dolibarr | MariaDB , MySQL , PostgreSQL , SQL Serv… |
| Faveo Helpdesk | MariaDB , MySQL |
| FogBugz | SQL Server , MySQL |
| Fossil | SQLite |
| FusionForge | PostgreSQL |
| GLPI | MariaDB , MySQL |
| GNATS | Text files with custom daemon/search en… |
| Helix ALM (aka TestTrack) | Oracle , PostgreSQL , SQL Server , SQLi… |
| HP Quality Center | Oracle , SQL Server |
| Jira | MySQL , PostgreSQL , Oracle , SQL Server |
| Launchpad | PostgreSQL |
| MantisBT | MariaDB , MySQL , PostgreSQL , SQL Serv… |
| Microsoft Dynamics CRM | Microsoft SQL Server |
| OpenProject | PostgreSQL |
| org-mode | Flat file |
| OTRS | MySQL , PostgreSQL , Oracle , SQL Server |
| Redmine | MySQL , PostgreSQL , SQLite |
| Request Tracker | MariaDB , MySQL , PostgreSQL , Oracle ,… |
| Roundup | SQLite , MySQL , PostgreSQL , anydbm |
| StarTeam | SQL Server recommended, Oracle , IBM Db… |
| Supportworks | SQL Server , MySQL , Oracle , Sybase |
| SysAid | Derby , Microsoft SQL Server , MySQL ,… |
| Trac | SQLite , PostgreSQL , MySQL |
| TrackerSuite.Net | SQL Server , SQL Server Express |
| Trello | MongoDB |
| Tuleap | MySQL |
| Twproject | all relational (uses Hibernate ) |
| Wrike | PostgreSQL |
| YouTrack | JavaScript and Kotlin |
| Zammad | MariaDB , MySQL , PostgreSQL |
| System | Back end |

| System | Launch date | Latest stable release |
|---|---|---|
| Apache Bloodhound | 2012 | 0.8 |
| Apache Allura | 2022 | 1.17.1 |
| Assembla Tickets | 2008 | |
| Axosoft | 2002 | |
| Azure DevOps Server (Team Foundation Se… | 2005 | |
| Bugzilla | 1998-09-19 | 5.2 |
| Debbugs | Between 1994 and 1999 | |
| Dolibarr | 2018 | 21.0.1 |
| Faveo Helpdesk | 2015 | |
| FogBugz | 2000 | |
| Fossil | 2006 | 2.26 |
| FusionForge | 2009-02 | |
| GLPI | 2003-11-17 | |
| GNATS | 1992 | 4.2.0 |
| Helix ALM (aka TestTrack) | 1996 | 2024.1 |
| HP Quality Center | 1995 | |
| Jira | 2002 | 10.1.1 |
| Launchpad | 2004-01 | |
| MantisBT | 2000 | 2.27.1 |
| Microsoft Dynamics CRM | 2003 | |
| OpenProject | 2010 | |
| org-mode | 2003 | |
| OTRS | 2002 | |
| Phabricator | 2010 | |
| Redmine | 2006 | 6.0.6 |
| Request Tracker | 1999-10-13 | 6.0.0 |
| Roundup | 2001 | 2.5.0 |
| StarTeam | Un­known | |
| Supportworks | 1994 | |
| SysAid | 2002 | |
| Trac | 2006-10-01 | |
| TrackerSuite.Net | 2006 | |
| Trello | 2011 | |
| Tuleap | 2011 | |
| Twproject | 2003 | |
| Wrike | 2006 | |
| YouTrack | 2009 | |
| Zammad | 2016 | 6.5 |
| System | Launch date | Latest stable release |

| System | Latest release date |
|---|---|
| Apache Bloodhound | 2013-08-23; 12 years ago |
| Apache Allura | 2024-06-17; 13 months ago |
| Bugzilla | 2024-09-03; 11 months ago |
| Dolibarr | 2025-04-06; 4 months ago |
| Fossil | 2025-04-30; 3 months ago |
| GNATS | 2015-02-26; 10 years ago |
| Helix ALM (aka TestTrack) | 2024-03-01; 17 months ago |
| Jira | 2024-10-09; 2025-05-30; Error: first pa… |
| MantisBT | 2025-03-01; 5 months ago |
| Redmine | 2025-07-07; 36 days ago |
| Request Tracker | 2025-05-28; 2 months ago |
| Roundup | 2025-07-13; 30 days ago |
| Zammad | 2025-04-02; 4 months ago |
| System | Latest release date |

Features

| System | Documentation integration/generation, r… |
|---|---|
| Apache Bloodhound | Yes, integrated wiki |
| Assembla Tickets | Yes, Wiki syntax, email notification, l… |
| Axosoft | Yes, Team Wiki, Burndown, GitHub and To… |
| Azure DevOps Server (Team Foundation Se… | Yes - workflow definitions, process doc… |
| Bugzilla | Yes, reporting: integrated reports and… |
| Debbugs | No |
| Faveo Helpdesk | Yes, Integrated Social Media, In-built… |
| FogBugz | Yes, Integrated wiki |
| Fossil | Yes, Integrated Wiki in addition to int… |
| FusionForge | Yes, integrated Mediawiki, discussion f… |
| GLPI | Yes, Contains a proprietary knowledge b… |
| GNATS | No |
| Helix ALM | Yes - Advanced reporting, integrated ch… |
| HP Quality Center | Yes |
| Jira | Yes, Dashboard with reporting widgets (… |
| Launchpad | Yes |
| MantisBT | Yes, Integration of MediaWiki , DokuWik… |
| Microsoft Dynamics CRM | Yes, reporting: integrated charts and r… |
| org-mode | Yes, org-mode has built-in export to HT… |
| OTRS | Yes, Advanced reporting, configurable d… |
| Phabricator | Yes, integrated wiki and limited burn d… |
| Redmine | Yes, integrated wiki, discussion forums… |
| Request Tracker | Yes, MediaWiki |
| Roundup | Yes, wiki can be integrated or linked |
| StarTeam | No |
| Supportworks | Yes - Integrated reporting wizard , cus… |
| SysAid | Yes - LDAP / Email /Calendar integratio… |
| Teamwork | Yes |
| Trac | Yes, integrated wiki |
| TrackerSuite.Net | Yes. Dashboards. Graphical reports. Int… |
| Tuleap | Yes, Kanban boards, Scrum planning and… |
| Wrike | Yes, real-time customized reports, expo… |
| YouTrack | Yes: Wiki syntax, custom workflow, cust… |
| Zammad | Yes: Documentation integration/generati… |
| System | Dynamic documentation integration/gener… |

| System | Test planning integration |
|---|---|
| Apache Bloodhound | Yes |
| Assembla Tickets | Yes |
| Axosoft | No |
| Azure DevOps Server (Team Foundation Se… | Yes |
| Bugzilla | Yes |
| Debbugs | No |
| Faveo Helpdesk | No |
| FogBugz | No |
| Fossil | No |
| FusionForge | No |
| GLPI | Yes |
| GNATS | No |
| Helix ALM | Yes |
| HP Quality Center | Yes |
| Jira | Yes |
| Launchpad | Un­known |
| MantisBT | No |
| Microsoft Dynamics CRM | No |
| org-mode | No |
| OTRS | No |
| Phabricator | Yes |
| Redmine | Yes |
| Request Tracker | No |
| Roundup | No, can be implemented at tracker level |
| StarTeam | Yes |
| Supportworks | No |
| SysAid | No |
| Teamwork | Yes |
| Trac | Yes |
| TrackerSuite.Net | Yes |
| Tuleap | Yes |
| Wrike | No |
| YouTrack | Yes |
| Zammad | No |
| System | Test planning integration |

| System | Customizable workflow | Unicode support |
|---|---|---|
| Apache Bloodhound | Yes | Yes |
| Assembla Tickets | Yes | Yes |
| Axosoft | Yes | Yes |
| Azure DevOps Server (Team Foundation Se… | Yes | Yes |
| Bugzilla | Yes | Yes |
| Debbugs | No | Yes |
| Faveo Helpdesk | Yes | Yes |
| FogBugz | Yes | Yes |
| Fossil | No | No |
| FusionForge | Yes | Yes |
| GLPI | Yes | Yes |
| GNATS | No | No |
| Helix ALM | Yes | Yes |
| HP Quality Center | Yes | No |
| Jira | Yes | Yes |
| Launchpad | Un­known | Un­known |
| MantisBT | Yes | Yes |
| Microsoft Dynamics CRM | Yes | Yes |
| org-mode | Yes | Yes |
| OTRS | Yes | Yes |
| Phabricator | No | Yes |
| Redmine | Yes | Yes |
| Request Tracker | Yes | Yes |
| Roundup | Yes | Yes |
| StarTeam | Yes | No |
| Supportworks | Yes | No |
| SysAid | Yes | Yes |
| Teamwork | Yes | Yes |
| Trac | Yes | Yes |
| TrackerSuite.Net | Yes | Yes |
| Tuleap | Yes | Yes |
| Wrike | Yes | Yes |
| YouTrack | Yes | Yes |
| Zammad | No | Yes |
| System | Customizable workflow | Unicode support |

| System | Custom fields |
|---|---|
| Apache Bloodhound | Yes |
| Assembla Tickets | Yes |
| Axosoft | Yes |
| Azure DevOps Server (Team Foundation Se… | Yes |
| Bugzilla | Yes |
| Debbugs | No |
| Faveo Helpdesk | Yes |
| FogBugz | Yes |
| Fossil | Yes |
| FusionForge | Yes |
| GLPI | Yes |
| GNATS | No |
| Helix ALM | Yes |
| HP Quality Center | Yes |
| Jira | Yes |
| Launchpad | Un­known |
| MantisBT | Yes |
| Microsoft Dynamics CRM | Yes |
| org-mode | Yes |
| OTRS | Yes |
| Phabricator | Yes |
| Redmine | Yes |
| Request Tracker | Yes |
| Roundup | Yes |
| StarTeam | Yes |
| Supportworks | Yes |
| SysAid | Yes |
| Teamwork | Yes |
| Trac | Yes |
| TrackerSuite.Net | Yes |
| Tuleap | Yes |
| Wrike | Yes |
| YouTrack | Yes |
| Zammad | Yes |
| System | Custom fields |

| System | SLA | Plugin API |
|---|---|---|
| Apache Bloodhound | No | Yes |
| Assembla Tickets | No | Yes |
| Axosoft | Yes | Yes |
| Azure DevOps Server (Team Foundation Se… | No | Yes |
| Bugzilla | No | Yes |
| Debbugs | No | No |
| Faveo Helpdesk | Yes | Yes |
| FogBugz | No | Yes |
| Fossil | No | No |
| FusionForge | No | Yes |
| GLPI | Yes | Yes |
| GNATS | No | No |
| Helix ALM | No | Yes |
| HP Quality Center | No | Yes |
| Jira | Yes | Yes |
| Launchpad | Un­known | Un­known |
| MantisBT | No | Yes |
| Microsoft Dynamics CRM | No | Yes |
| org-mode | No | No |
| OTRS | Yes | Yes |
| Phabricator | No | Yes |
| Redmine | Optional | Yes |
| Request Tracker | Yes | Yes |
| Roundup | No, can be implemented at tracker level | Yes |
| StarTeam | No | No |
| Supportworks | Yes | Yes |
| SysAid | Yes | Yes |
| Teamwork | Yes | No |
| Trac | No | Yes |
| TrackerSuite.Net | No | Yes |
| Tuleap | Yes | Yes |
| Wrike | No | Yes |
| YouTrack | Yes | Yes |
| Zammad | Yes | Yes |
| System | SLA | Plugin API |

| System | Multiple projects | Full-text search |
|---|---|---|
| Apache Bloodhound | Yes (as of 0.6) | Yes |
| Assembla Tickets | Yes | No |
| Axosoft | Yes | |
| Azure DevOps Server (Team Foundation Se… | Yes | Yes |
| Bugzilla | Yes | Yes |
| Debbugs | Un­known | |
| Faveo Helpdesk | — | Yes |
| FogBugz | Yes | Yes |
| Fossil | Yes | No |
| FusionForge | Yes | Yes |
| GLPI | Yes | Yes |
| GNATS | Un­known | |
| Helix ALM | Yes | Yes |
| HP Quality Center | Yes | No |
| Jira | Yes | Yes |
| Launchpad | Un­known | Un­known |
| MantisBT | Yes | Yes |
| Microsoft Dynamics CRM | Un­known | |
| org-mode | Yes | Yes |
| OTRS | Yes | Yes |
| Phabricator | Yes | Yes |
| Redmine | Yes | Yes |
| Request Tracker | Yes | Yes |
| Roundup | Yes | Yes |
| StarTeam | Un­known | |
| Supportworks | Un­known | |
| SysAid | Yes | Yes |
| Teamwork | Yes | Yes |
| Trac | Yes | Yes |
| TrackerSuite.Net | Yes | Yes |
| Tuleap | Yes | Yes with plugin fulltext |
| Wrike | Yes | Un­known |
| YouTrack | Yes | Yes |
| Zammad | Yes | Yes |
| System | Multiple projects | Full-text search |

| System | Indexed full-text search |
|---|---|
| Apache Bloodhound | Yes uses Whoosh |
| Assembla Tickets | Un­known |
| Azure DevOps Server (Team Foundation Se… | Yes |
| Bugzilla | Yes When using MySQL MyISAM or Oracle D… |
| Faveo Helpdesk | No |
| FogBugz | Yes |
| Fossil | No |
| GLPI | Yes |
| Helix ALM | Yes |
| HP Quality Center | No |
| Jira | Yes Uses Lucene |
| Launchpad | Un­known |
| MantisBT | Yes |
| OTRS | Yes |
| Phabricator | Yes |
| Redmine | Optional, when using PostgreSQL |
| Request Tracker | Yes |
| Roundup | Yes xapian, whoosh, SQLite FTS, Postgre… |
| SysAid | Un­known |
| Teamwork | Yes Uses Lucene |
| Trac | No |
| TrackerSuite.Net | No |
| Tuleap | Yes with plugin fulltext |
| YouTrack | Yes (Uses Lucene ) |
| Zammad | Yes |
| System | Indexed full-text search |

| System | Indexed file search | Edit conflict warning |
|---|---|---|
| Apache Bloodhound | No | No |
| Assembla Tickets | No | No |
| Axosoft | | No |
| Azure DevOps Server (Team Foundation Se… | Yes | No |
| Bugzilla | | Yes |
| Debbugs | No | No |
| Faveo Helpdesk | No | No |
| FogBugz | No | Yes |
| Fossil | | No |
| FusionForge | | No |
| GLPI | Yes | No |
| GNATS | | No |
| Helix ALM | | No |
| HP Quality Center | No | No |
| Jira | Optional | No |
| Launchpad | Un­known | No |
| MantisBT | No | Yes |
| Microsoft Dynamics CRM | | No |
| org-mode | | No |
| OTRS | No | No |
| Phabricator | Yes | No |
| Redmine | Optional | Yes |
| Request Tracker | | No |
| Roundup | Yes | Yes |
| StarTeam | | No |
| Supportworks | | No |
| SysAid | No | No |
| Teamwork | | No |
| Trac | | Yes |
| TrackerSuite.Net | No | No |
| Tuleap | No | No |
| Wrike | | Yes |
| YouTrack | | No |
| Zammad | Yes | Yes |
| System | Indexed file search | Edit conflict warning |

Input interfaces

| System | Web | Mobile web | Email | CLI |
|---|---|---|---|---|
| Apache Bloodhound | Yes | No | Optional | No |
| Assembla Tickets | Yes | No | Yes | Yes |
| Axosoft | Yes | No | Yes | No |
| Bugzilla | Yes | No | Yes | Yes |
| Debbugs | No | No | Yes | Yes |
| Dolibarr | Yes | Yes | Yes | No |
| Faveo Helpdesk | Yes | No | Yes | No |
| FogBugz | Yes | No | Yes | Yes |
| Fossil | Yes | No | No | Yes |
| FusionForge | Yes | No | No | No |
| GLPI | Yes | No | Yes | No |
| GNATS | Yes | No | Yes | Yes |
| Helix ALM | Yes | No | Yes | No |
| HP Quality Center | Yes | No | No | No |
| Jira | Yes | Yes | Yes | Yes |
| Launchpad | Yes | No | Yes | No |
| MantisBT | Yes | No | Yes | No |
| Microsoft Dynamics CRM | Yes | No | Yes | No |
| org-mode | No | No | No | Yes |
| OTRS | Yes | No | Yes | No |
| Phabricator | Yes | No | Yes | Yes |
| Redmine | Yes | Yes | Yes | Partial |
| Request Tracker | Yes | Yes Responsive layout after 1.5.0. Part… | Yes | Yes |
| Roundup | Yes | Yes with Jinja2 template can be impleme… | Yes | Yes |
| StarTeam | Yes | No | No | No |
| Supportworks | Yes | No | Yes | No |
| SysAid | Yes | No | Yes | No |
| Team Foundation Server | Yes | No | Yes | Yes |
| Trac | Yes | No | Optional | No |
| TrackerSuite.Net | Yes | No | Yes | No |
| Trello | Yes | Yes | Yes | No |
| Tuleap | Yes | No | Yes | Yes |
| Twproject | Yes | No | Yes | No |
| Wrike | Yes | No | No | No |
| YouTrack | Yes | Yes | Yes | No |
| Zammad | Yes | No | Yes | Yes |
| System | Web | Mobile Web | Email | CLI |

| System | GUI | REST | SOAP | Mylyn | Visual Studio |
|---|---|---|---|---|---|
| Apache Bloodhound | No | No | No | Yes | No |
| Assembla Tickets | No | Yes | No | Yes | No |
| Axosoft | Yes | Yes | Yes | No | No |
| Bugzilla | Yes | Yes | Yes | Yes | No |
| Debbugs | No | No | No | No | No |
| Dolibarr | Yes | Yes | No | No | No |
| Faveo Helpdesk | No | Yes | No | No | No |
| FogBugz | No | Yes | No | Yes | No |
| Fossil | No | No | No | No | No |
| FusionForge | No | No | Yes | No | No |
| GLPI | No | Yes | No | No | No |
| GNATS | Yes | No | No | No | No |
| Helix ALM | Yes | Yes | Yes | No | Yes |
| HP Quality Center | Yes | Yes | No | Yes | No |
| Jira | Yes | Yes | Yes | Yes | No |
| Launchpad | No | Yes | No | No | No |
| MantisBT | No | No | Yes | Yes | No |
| Microsoft Dynamics CRM | No | No | Yes | No | No |
| org-mode | No | No | No | No | No |
| OTRS | No | Yes | Yes | No | No |
| Phabricator | Yes | Yes | No | No | No |
| Redmine | No | Yes | No | Yes | No |
| Request Tracker | No | Yes | No | No | No |
| Roundup | No (use web) | Yes new in 2.0 | No | No | No |
| StarTeam | Yes | No | No | No | Yes |
| Supportworks | Yes | Yes | No | No | No |
| SysAid | Yes | Yes | Yes | No | No |
| Team Foundation Server | No | No | Yes | Yes | No |
| Trac | No | No | No | Yes | No |
| TrackerSuite.Net | No | No | No | No | No |
| Trello | No | Yes | No | No | No |
| Tuleap | No | Yes | Yes | Yes | No |
| Twproject | No | No | No | No | No |
| Wrike | No | No | No | No | No |
| YouTrack | Yes | Yes | No | Yes | No |
| Zammad | No | Yes | No | No | No |
| System | GUI | REST | SOAP | Mylyn | Visual Studio |

| System | IntelliJ IDEA | Others |
|---|---|---|
| Apache Bloodhound | No | Yes XMLRPC |
| Assembla Tickets | Yes | No |
| Axosoft | No | Yes - iPhone |
| Bugzilla | Yes | Yes XMLRPC |
| Debbugs | No | No |
| Dolibarr | No | No |
| Faveo Helpdesk | No | Yes - Android App iOS App |
| FogBugz | Yes | Yes XML |
| Fossil | No | No |
| FusionForge | No | No |
| GLPI | No | No |
| GNATS | No | No |
| Helix ALM | No | Yes - XML |
| HP Quality Center | Yes, via plugin | Yes] |
| Jira | Yes | Yes - Android App, iPhone App |
| Launchpad | No | Yes - Python |
| MantisBT | Yes | Yes - Android App |
| Microsoft Dynamics CRM | No | No |
| org-mode | No | No |
| OTRS | No | No |
| Phabricator | Yes, via plugin | No |
| Redmine | Yes | Yes - Android App, iOS App |
| Request Tracker | No | No |
| Roundup | No | Yes XMLRPC |
| StarTeam | No | No |
| Supportworks | No | No |
| SysAid | No | No |
| Team Foundation Server | Yes, via plugin | No |
| Trac | Yes | Yes XMLRPC |
| TrackerSuite.Net | No | No |
| Trello | Yes | No |
| Tuleap | No | No |
| Twproject | No | No |
| Wrike | Yes, via plugin | No |
| YouTrack | Yes | No |
| Zammad | No | No |
| System | IntelliJ IDEA | Others |

Notification interfaces

| System | Email | RSS | Atom | XMPP | Twitter |
|---|---|---|---|---|---|
| Apache Bloodhound | Yes | Yes | No | No | No |
| Assembla Tickets | Yes | Yes | No | No | Yes |
| Axosoft | Yes | Yes | No | No | No |
| Bugzilla | Yes | Yes | Yes | No | No |
| Debbugs | Yes | No | No | No | No |
| Dolibarr | Yes | No | No | No | No |
| Faveo Helpdesk | Yes | No | No | No | No |
| FogBugz | Yes | Yes | No | No | No |
| Fossil | Yes | Yes | No | No | No |
| FusionForge | Yes | Yes | No | No | No |
| GLPI | Yes | No | No | Yes | No |
| GNATS | Yes | No | No | No | No |
| Helix ALM | Yes | Yes | No | No | No |
| HP Quality Center | Yes | No | No | No | No |
| Jira | Yes | Yes | No | Yes | No |
| MantisBT | Yes | Yes | No | No | Yes |
| Microsoft Dynamics CRM | Yes | No | No | No | No |
| org-mode | No | No | No | No | No |
| OTRS | Yes | No | No | No | No |
| Phabricator | Yes | No | No | No | No |
| Redmine | Yes | Yes | Yes | Yes, via plugin | Yes |
| Request Tracker | Yes | Yes | No | No | No |
| Roundup | Yes | Yes | Yes | No | No |
| StarTeam | Yes | No | No | No | No |
| Supportworks | Yes | No | No | No | No |
| SysAid | Yes | No | No | No | No |
| Team Foundation Server | Yes | No | No | No | No |
| Trac | Yes | Yes | No | No | No |
| TrackerSuite.Net | Yes | No | No | No | No |
| Twproject | Yes | Yes | No | No | Yes |
| Wrike | Yes | No | No | No | No |
| YouTrack | Yes | Yes | No | Yes | No |
| Zammad | Yes | No | No | No | Yes |
| System | Email | RSS | Atom | XMPP | Twitter |

Revision control system integration

| System | Git | Mercurial | Bazaar | Monotone | Darcs | CVS |
|---|---|---|---|---|---|---|
| Apache Bloodhound | Yes | Yes | Yes | Yes | Yes | Yes |
| Assembla Tickets | Yes | Yes | No | No | No | No |
| Axosoft | Yes | Yes | No | No | No | No |
| Bugzilla | Yes | Yes | Yes | No | No | Yes |
| Debbugs | No | No | No | No | No | No |
| Faveo Helpdesk | No | No | No | No | No | No |
| FogBugz | Yes | Yes | No | No | No | Yes |
| Fossil | No | No | No | No | No | No |
| FusionForge | Yes | Yes | Yes | No | No | Yes |
| GNATS | No | No | No | No | No | Yes |
| Helix ALM | Yes | No | No | No | No | Yes |
| HP Application Lifecycle Management | No | No | No | No | No | Yes |
| Jira | Yes | Yes | No | No | No | Yes |
| MantisBT | Yes | Yes | No | No | No | Yes |
| Microsoft Dynamics CRM | No | No | No | No | No | No |
| org-mode | No | No | No | No | No | No |
| OTRS | No | No | No | No | No | No |
| Phabricator | Yes | Yes | No | No | No | No |
| Redmine | Yes | Yes | Yes | No | Yes | Yes |
| Request Tracker | No | No | No | No | No | Yes |
| Roundup | No | Yes | No | No | Yes | No |
| StarTeam | No | No | No | No | No | No |
| Supportworks | No | No | No | No | No | No |
| SysAid | No | No | No | No | No | No |
| Team Foundation Server | Yes | No | Yes | No | No | No |
| Trac | Yes | Yes | Yes | Yes | Yes | No |
| TrackerSuite.Net | No | No | No | No | No | No |
| Tuleap | Yes | No | No | No | No | Yes |
| Twproject | No | No | No | No | No | No |
| Wrike | No | No | No | No | No | No |
| YouTrack | Yes | Yes | No | No | No | Yes |
| Zammad | No | No | No | No | No | No |
| System | Git | Mercurial | Bazaar | Monotone | Darcs | CVS |

| System | Subversion | Perforce | AccuRev | ClearCase |
|---|---|---|---|---|
| Apache Bloodhound | Yes | Optional | Yes | No |
| Assembla Tickets | Yes | Yes | No | No |
| Axosoft | Yes | Yes | No | No |
| Bugzilla | Yes | Yes | Yes | No |
| Debbugs | No | No | No | No |
| Faveo Helpdesk | No | No | No | No |
| FogBugz | Yes | Yes | No | No |
| Fossil | No | No | Yes | No |
| FusionForge | Yes | No | No | No |
| GNATS | No | No | No | No |
| Helix ALM | Yes | Yes | No | No |
| HP Application Lifecycle Management | Yes | Yes | Yes | No |
| Jira | Yes | Yes | Yes | No |
| MantisBT | Yes | No | No | No |
| Microsoft Dynamics CRM | No | No | No | No |
| org-mode | No | No | No | No |
| OTRS | No | No | No | No |
| Phabricator | Yes | No | No | No |
| Redmine | Yes | Yes | No | No |
| Request Tracker | Yes | No | No | No |
| Roundup | Yes | No | No | No |
| StarTeam | No | No | No | No |
| Supportworks | No | No | No | No |
| SysAid | Yes | No | No | No |
| Team Foundation Server | Yes | No | No | No |
| Trac | Yes | Optional | Yes | No |
| TrackerSuite.Net | No | No | No | No |
| Tuleap | Yes | No | No | No |
| Twproject | Yes | No | No | No |
| Wrike | Yes | No | No | No |
| YouTrack | Yes | Yes | No | Yes |
| Zammad | No | No | No | No |
| System | Subversion | Perforce | AccuRev | ClearCase |

| System | Others |
|---|---|
| Apache Bloodhound | No |
| Assembla Tickets | No |
| Axosoft | Yes VSS , Vault Sourcegear |
| Bugzilla | No |
| Debbugs | No |
| Faveo Helpdesk | No |
| FogBugz | 2 |
| Fossil | 1 |
| FusionForge | No |
| GNATS | No |
| Helix ALM | Yes - Surround SCM |
| HP Application Lifecycle Management | No |
| Jira | Yes |
| MantisBT | No |
| Microsoft Dynamics CRM | No |
| org-mode | No |
| OTRS | No |
| Phabricator | No |
| Redmine | No |
| Request Tracker | No |
| Roundup | Yes can be implemented for any RCS at t… |
| StarTeam | Yes - StarTeam includes revision control |
| Supportworks | No |
| SysAid | No |
| Team Foundation Server | Yes - TFS includes revision control |
| Trac | No |
| TrackerSuite.Net | No |
| Tuleap | No |
| Twproject | No |
| Wrike | No |
| YouTrack | 3 |
| Zammad | No |
| System | Others |

Authentication methods

| System | Form based | Public key cryptography | Two-factor | OpenID | OAuth |
|---|---|---|---|---|---|
| Apache Bloodhound | Yes | Optional | No | Optional | No |
| Assembla Tickets | Yes | No | No | Yes | Yes |
| Axosoft | Yes | No | No | No | No |
| Bugzilla | Yes | No | No | Optional | No |
| Debbugs | No | No | No | No | No |
| Faveo Helpdesk | Yes | No | No | No | Yes |
| FogBugz | Yes | Un­known | Un­known | Un­known | Un­known |
| Fossil | Un­known | Un­known | Un­known | Un­known | Un­known |
| FusionForge | Yes | No | No | Yes | No |
| GLPI | Yes | No | Yes | No | No |
| GNATS | Un­known | Un­known | Un­known | Un­known | Un­known |
| Helix ALM | Yes | Optional | No | Optional | No |
| HP Quality Center | No | No | No | No | No |
| Jira | Yes | No | No | Yes | Yes |
| MantisBT | Yes | No | No | Yes | Yes |
| Microsoft Dynamics CRM | Un­known | Un­known | Un­known | Un­known | Un­known |
| org-mode | Un­known | Un­known | Un­known | Un­known | Un­known |
| OTRS | Yes | Yes | Yes | Un­known | Un­known |
| Phabricator | Yes | No | Yes | No | Yes |
| Redmine | Yes | Yes | Yes | Yes | No |
| Request Tracker | Yes | Un­known | Un­known | Yes | Un­known |
| Roundup | Yes | Un­known | Yes | Yes | Un­known |
| StarTeam | Un­known | Un­known | Un­known | Un­known | Un­known |
| Supportworks | Un­known | Un­known | Un­known | Un­known | Un­known |
| SysAid | Yes | No | No | No | No |
| Team Foundation Server | Un­known | Un­known | Un­known | Un­known | Un­known |
| Trac | Yes | Optional | No | Optional | No |
| TrackerSuite.Net | Yes | No | No | No | No |
| Tuleap | Yes | No | No | Yes | Yes |
| Twproject | Yes | Un­known | Un­known | Un­known | Un­known |
| Wrike | Un­known | Un­known | Un­known | Un­known | Un­known |
| YouTrack | Yes | No | Yes | Yes | Yes |
| Zammad | Yes | No | No | No | Yes |
| System | Form based | Public key cryptography | Two-factor | OpenID | OAuth |

| System | LDAP | Shibboleth |
|---|---|---|
| Apache Bloodhound | Yes | Un­known |
| Assembla Tickets | Yes (private version) | Un­known |
| Axosoft | Yes | No |
| Bugzilla | Yes | Un­known |
| Debbugs | No | No |
| Faveo Helpdesk | Yes | No |
| FogBugz | Yes | Un­known |
| Fossil | No | Un­known |
| FusionForge | Yes | No |
| GLPI | Yes | No |
| GNATS | No | Un­known |
| Helix ALM | Yes | No |
| HP Quality Center | Yes | No |
| Jira | Yes | Yes, via plugin |
| MantisBT | Yes | Un­known |
| Microsoft Dynamics CRM | Yes | Un­known |
| org-mode | No | Un­known |
| OTRS | Yes | Un­known |
| Phabricator | Yes | No |
| Redmine | Yes | Yes, via Apache (using mod_rails) |
| Request Tracker | Yes | Un­known |
| Roundup | Yes | Yes |
| StarTeam | No | Un­known |
| Supportworks | Yes | Un­known |
| SysAid | Yes | No |
| Team Foundation Server | Yes | Un­known |
| Trac | Yes | Un­known |
| TrackerSuite.Net | Yes | No |
| Tuleap | Yes | No |
| Twproject | Yes | Un­known |
| Wrike | Yes | Un­known |
| YouTrack | Yes | Un­known |
| Zammad | Yes | Yes |
| System | LDAP | Shibboleth |

| System | Others |
|---|---|
| Apache Bloodhound | No |
| Assembla Tickets | Un­known |
| Axosoft | No |
| Bugzilla | No |
| Debbugs | No |
| Faveo Helpdesk | No |
| FogBugz | Un­known |
| Fossil | Un­known |
| FusionForge | Yes, CAS |
| GLPI | No |
| GNATS | Un­known |
| Helix ALM | Yes - custom DLL, SAML |
| HP Quality Center | Un­known |
| Jira | Yes, via Crowd |
| MantisBT | No |
| Microsoft Dynamics CRM | Un­known |
| org-mode | Un­known |
| OTRS | Un­known |
| Phabricator | No |
| Redmine | No |
| Request Tracker | Yes |
| Roundup | Yes |
| StarTeam | Un­known |
| Supportworks | Un­known |
| SysAid | Yes, CAS |
| Team Foundation Server | Un­known |
| Trac | No |
| TrackerSuite.Net | No |
| Tuleap | No |
| Twproject | Yes, Simple container auth. |
| Wrike | Un­known |
| YouTrack | Yes: JIRA account |
| Zammad | Yes: Twitter , Facebook , Google , Micr… |
| System | Others |

Containers

| System | Docker Image | Helm chart |
|---|---|---|
| Apache Bloodhound | Un­known | Un­known |
| Assembla Tickets | Un­known | Un­known |
| Axosoft | Un­known | Un­known |
| Bugzilla | Yes (Not official) | Yes |
| Debbugs | Un­known | Un­known |
| Faveo Helpdesk | Un­known | Un­known |
| FogBugz | Un­known | Un­known |
| Fossil | Un­known | Un­known |
| FusionForge | Un­known | Un­known |
| GLPI | Un­known | Un­known |
| GNATS | Un­known | Un­known |
| Helix ALM | Un­known | Un­known |
| HP Quality Center | Un­known | Un­known |
| Jira | Un­known | Un­known |
| MantisBT | Yes (Not official) | Un­known |
| Microsoft Dynamics CRM | Un­known | Un­known |
| org-mode | Un­known | Un­known |
| OTRS | Un­known | Un­known |
| Phabricator | Un­known | Un­known |
| Redmine | Yes (Official) | Yes (Bitnami) |
| Request Tracker | Un­known | Un­known |
| Roundup | Yes (Official) | Un­known |
| StarTeam | Un­known | Un­known |
| Supportworks | Un­known | Un­known |
| SysAid | Un­known | Un­known |
| Team Foundation Server | Un­known | Un­known |
| Trac | Un­known | Un­known |
| TrackerSuite.Net | Un­known | Un­known |
| Tuleap | Un­known | Un­known |
| Twproject | Un­known | Un­known |
| Wrike | Un­known | Un­known |
| YouTrack | Un­known | Un­known |
| Zammad | Yes | Yes |
| System | Docker Image | Helm chart |

See also

• Comparison of help desk issue tracking software
• List of personal information managers
• Comparison of project management software
• Networked Help Desk
• OSS through Java

Notes

cite-note-71. Debian's bug tracking system was in place as soon as 1994 according to Ian Jackson's Debbugs webpage. However, Debbugs, as a generic ITS engine, was only uploaded to Debian as version 1 in January 1999.
cite-note-cli-ror-912. The Ruby on Rails console can be used to manually create tickets or replies

References

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cite-note-wikidata-f2d51e1efe752264e2f8f57204401cee01b34da1-v20-2223. "Release 6.0.0". 28 May 2025. Retrieved 1 June 2025.
cite-note-2324. "Installing Roundup - Roundup 2.5.0 documentation". www.roundup-tracker.org. Retrieved 2023-11-28.
cite-note-wikidata-af3ecaa069c1104df4d4b1565754c2f5f1ad833b-v20-2425. "Roundup 2.5.0 release announcement (including security fix)". 13 July 2025.
cite-note-hornbill1998-2526. "Hornbill Systems: Support Works Helpdesk". 1998-02-07. Archived from the original on February 7, 1998. Retrieved 2010-03-07.
cite-note-2627. "TracInstall – The Trac Project". trac.edgewall.org. Retrieved 2022-06-07.
cite-note-2728. "Requirements — Tuleap latest version documentation". docs.tuleap.org. Retrieved 2023-11-28.
cite-note-2829. "Software — Zammad documentation". docs.zammad.org. Retrieved 2022-06-07.
cite-note-2930. "Company Identity and Milestones | Zammad". Zammad Website. Retrieved 18 December 2020.
cite-note-wikidata-7d8e267bc01622888f9ed9fbb24ed917c4ac09e5-v20-3031. https://zammad.com/de/releases/6-5. Retrieved 13 April 2025. {{cite web}}: Missing or empty |title= (help)
cite-note-referencesla-3132. System supports service level agreement management
cite-note-referenceapi-3233. System has a plugin API to allow integration with other products
cite-note-3334. "BloodhoundSearch – Apache Bloodhound". Archived from the original on 2013-09-10. Retrieved 2013-04-23.
cite-note-3435. "Testopia is a test case management extension for Bugzilla". Mozilla.org. 2010-10-05. Retrieved 2011-10-21.
cite-note-3536. "New Features in 2.18 :: Bugzilla". bugzilla.org. 2006-10-02. Retrieved 2011-11-16.
cite-note-3637. "Bug 232612 - enable boolean mode fulltext searches". Bugzilla.mozilla.org. Retrieved 2011-10-21.
cite-note-3738. "Bug 310717 - Oracle Bugzilla::DB::Oracle module". Bugzilla.mozilla.org. Retrieved 2011-10-21.
cite-note-3839. "Bug 365258 - PostgreSQL Use tsearch2 for fulltext indexing when available". Bugzilla.mozilla.org. Retrieved 2011-10-21.
cite-note-3940. Bugzilla 3.4.2 Release Notes
cite-note-4041. "FogBugz - Features - Customizable Case List". fogcreek.com. Archived from the original on 2013-07-05. Retrieved 2010-03-25.
cite-note-4142. "Searching in FogBugz". Fogcreek.com. Archived from the original on 2011-10-24. Retrieved 2011-10-21.
cite-note-4243. "Searching in FogBugz - About the FogBugz Search Engine". Fogcreek.com. Archived from the original on 2011-10-24. Retrieved 2011-10-21.
cite-note-4344. "Feature Request: index content of certain attachments (e.g. Word documents) in Wiki articles". Fogbugz.stackexchange.com. Archived from the original on 2012-03-02. Retrieved 2011-10-21.
cite-note-4445. "Fossil Server command - running multiple instances". fossil-scm.org. Retrieved 2011-01-11.
cite-note-4546. "Fossil: To Do List". Fossil-scm.org. Retrieved 2011-10-21.
cite-note-4647. "Multiple vendors". Confluence.atlassian.com. 2011-10-03. Retrieved 2011-10-21.
cite-note-4748. "Plugins.atlassian.com". Plugins.atlassian.com. Retrieved 2011-10-21.
cite-note-jira-performing-text-searches-4849. "JIRA - Performing Text Searches". Confluence.atlassian.com. Retrieved 2011-10-21.
cite-note-4950. "JIRA Searchable Attachments Plugin". Studio.plugins.atlassian.com. Archived from the original on December 17, 2012. Retrieved 2011-10-21.
cite-note-5051. Edit a JIRA Issue at the same time by two Users result in last save wins
cite-note-5152. "Mantis Feature List". Mantisbt.org. 2011-02-16. Retrieved 2011-10-21.
cite-note-5253. "0012319: Index attachments' content". MantisBT. Retrieved 2011-10-21.
cite-note-5354. Jenkins
cite-note-5455. Commercial plugin available (Redmine Reporting)
cite-note-5556. "Redmine".
cite-note-5657. Free plugin available (Redmine PostgreSQL Search)
cite-note-5758. citerefadded-by-xabier-elkano-about2010Added by Xabier Elkano about (2010-09-14). "Xapian search plugin". Redmine. Retrieved 2011-10-21.
cite-note-5859. Redmine Feature #8691 Better handling of issue update conflict
cite-note-5960. "Feature list". Bestpractical.com. Retrieved 2011-10-21.
cite-note-6061. Needs a third-party extension (RT-Extension-SLA)
cite-note-6162. RT can be extended through Perl extensions, see for example RTX:: modules on MetaCPAN.org
cite-note-best-practical-what-s-new-in-4-fast-full-text-searching-6263. "Best Practical: What's New in 4: Fast full-text searching". Blog.bestpractical.com. 2011-06-27. Retrieved 2011-10-21.
cite-note-6364. "Roundup Design Detector Interface". Roundup-tracker.org. Retrieved 2014-01-03.
cite-note-6465. "Roundup Features". Roundup-tracker.org. Retrieved 2011-10-21.
cite-note-6566. Borland
cite-note-6667. 5005 API exists but is undocumented
cite-note-6768. "Smarter search and recent object functionality " teamwork's blog". Blog.twproject.com. 2009-02-20. Retrieved 2011-10-21.
cite-note-6869. "Test Manager plugin". Retrieved 2014-01-03.
cite-note-6970. "List of trac plugins". Trac.edgewall.org. 2011-08-11. Retrieved 2011-10-21.
cite-note-7071. "Trac 1.0". Trac.edgewall.org. 2010-09-11. Retrieved 2014-01-03.
cite-note-7172. "trac - Advanced Search - Indexing". Trac.edgewall.org. 2010-04-10. Retrieved 2011-10-21.
cite-note-7273. Trac #7145 Improve handling of conflicts due to concurrent ticket edits
cite-note-7374. "YouTrack integration with test management tools". Confluence.jetbrains.net. 2010-08-02. Archived from the original on 2011-10-09. Retrieved 2011-10-21.
cite-note-7475. "YouTrack Support Workflow and Response SLAs". 7 October 2024.
cite-note-7576. "YouTrack integrates with other products via REST API". Confluence.jetbrains.net. 2011-09-09. Archived from the original on 2013-01-23. Retrieved 2011-10-21.
cite-note-7677. "YouTrack - Search for issues". Jetbrains.com. Retrieved 2011-10-21.
cite-note-7778. "SLAs and Escalations • Features | Zammad". Zammad Website: SLA Feature. Retrieved 18 December 2020.
cite-note-7879. "Fast Full-text Search • Features | Zammad". Zammad Website: Full-text search Feature.
cite-note-7980. "Overview of Features | Zammad". Zammad Features. Retrieved 18 December 2020.
cite-note-mylynlist-8081. "List of Mylyn connector extensions". Wiki.eclipse.org. 2011-08-23. Retrieved 2011-10-21.
cite-note-pluggable-email-handler-for-trac-8182. "Pluggable email handler for Trac". Trac Hacks. Retrieved 3 April 2013.
cite-note-email2trac-utilities-8283. "email2trac utilities". SURF SARA. Retrieved 28 February 2014.
cite-note-tasktop-dev-for-visual-studio-8384. "Tasktop Dev for Visual Studio". Visual Studio Gallery. Archived from the original on 2016-08-22. Retrieved 2016-08-08.
cite-note-xml-rpc-doesn-t-work-in-iis-8485. "XML-RPC doesn't work in IIS". Mozilla. 7 December 2011. Archived from the original on 3 August 2014. Retrieved 21 March 2014.
cite-note-8586. "HP ALM Explorer Add-in". HP. Archived from the original on 2012-06-20. Retrieved 2012-03-23.
cite-note-8687. "QcMylyn". Sourceforge.net. 2010-11-15. Retrieved 2011-10-21.
cite-note-8788. Using JIRA on a mobile device
cite-note-8889. By third-party extension: plugins.atlassian.com
cite-note-launchpadlib-8990. Launchpadlib is a Python client library for the Launchpad RESTful API.
cite-note-9091. Feature #19097: Responsive layout for mobile devices - Redmine
cite-note-9292. "REST API for Request Tracker". Wiki.bestpractical.com. Retrieved 2011-10-21.
cite-note-xml-rpc-access-to-roundup-9393. "XML-RPC access to Roundup". roundup-tracker.org. Retrieved 11 November 2016.
cite-note-9494. Through 5005 API, but is undocumented
cite-note-9595. #11953 (Responsive design for user interface) – The Trac Project
cite-note-9696. Introducing YouTrack Mobile
cite-note-eclipse-plugin-connector-for-youtrack-9797. "Youtrack.mylyn.connector". Alexander Marchuk. Archived from the original on 5 November 2014. Retrieved 5 November 2014.
cite-note-9898. "Request Tracker RSS support". Wiki.bestpractical.com. 2011-10-14. Retrieved 2011-10-21.
cite-note-roundup-feed-9999. "FeedGeneration". wiki.roundup-tracker.org. 2009-02-01. Retrieved 2018-07-14.
cite-note-perforceplugin-100100. via the PerforcePlugin
cite-note-101101. via the Mercurial SCM Plug-In For Axosoft
cite-note-102102. "Git Bugzilla Extension". Theoldmonk.net. 2007-06-03. Retrieved 2011-10-21.
cite-note-103103. "Mercurial Bugzilla Extension". Mercurial.selenic.com. 2010-08-28. Archived from the original on 2011-10-08. Retrieved 2011-10-21.
cite-note-104104. Visual SourceSafe, Vault
cite-note-105105. Fossil
cite-note-perforce1-106106. "Defect Tracking Gateway". Perforce. Retrieved 2012-01-10.
cite-note-107107. No diff, just virtual version numbers.
cite-note-108108. There is an unsupported plugin for associating issues with ClearCase check-ins for an outdated version of JIRA. ClearCase support through Atlassian FishEye has been removed in all versions since April 2012. End of Support Announcement for IBM ClearCase
cite-note-109109. Commit Policy Plugin integrates JIRA with Bitbucket Server (formerly known as Atlassian Stash), in addition to Subversion, Git and Mercurial.
cite-note-110110. via the SourceHgWeb plugin Archived 2012-03-02 at the Wayback Machine
cite-note-111111. newly supported
cite-note-112112. via the bzr-tfs plugin
cite-note-113113. via the SVNBridge
cite-note-viateamcity-114114. Via TeamCity integration
cite-note-115115. Visual SourceSafe, Team Foundation Server, Borland StarTeam
cite-note-ssl-authentication-plugin-116116. "SSL Authentication Plugin". giel. 2009-07-01. Retrieved 2010-05-27.
cite-note-openid-authentication-plugin-117117. "OpenID Authentication Plugin". Dalius Dobravolskas. 2010-05-27. Archived from the original on 2010-06-02. Retrieved 2010-05-27.
cite-note-openid-auth-plugin-118118. "Bugzilla:OpenID Auth Plugin". Rob Lanphier. 2013-03-30. Retrieved 2015-05-07.
cite-note-119119. "Jira 3.8". Archived from the original on 2012-05-22. Retrieved 2012-08-01.
cite-note-120120. "Jira 4.x". Archived from the original on 2016-03-05. Retrieved 2020-07-26.
cite-note-121121. "Connecting to Crowd or Another JIRA Server for User Management - JIRA 6.4 EAP - Atlassian Documentation".
cite-note-122122. "MantisBT bug #8199: Add Open ID support". MantisBT. 2009-01-15. Retrieved 2010-05-27.
cite-note-123123. "MantisBT bug #11219: Provide OAuth inter-application authentication "tokens" mechanism". MantisBT. 2010-05-27. Retrieved 2010-05-27.
cite-note-124124. "Redmine SSL Auth plugin". Jorge Bernal. 2010-01-09. Retrieved 2010-05-27.
cite-note-125125. "Redmine Feature #699: OpenID login". Redmine. 2009-02-11. Retrieved 2010-05-27.
cite-note-126126. Needs a third-party extension (RT-Authen-OpenID on MetaCPAN.org)
cite-note-127127. Needs a third-party extension (RT::Authen::ExternalAuth)
cite-note-128128. See available extensions
cite-note-129129. HOTP/TOTP
cite-note-130130. developed by bugs.python.org team
cite-note-131131. See wiki page on ShibbolethLogin
cite-note-132132. Supports AUTHORIZATION header/var from front end authenticating web server/proxy.
cite-note-133133. "Bugzilla Docker image".
cite-note-134134. "Bugzilla Helm chart". GitHub. 10 April 2020.
cite-note-135135. "MantisBT Docker image".
cite-note-136136. "Redmine Official Docker Image".
cite-note-137137. "Bitnami redmine chart".
cite-note-138138. "Roundup Tracker Docker Image".

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