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Registered usernames can no longer be used by an anonymous author

Until now a registered user has been able to make a change without authenticating, by entering their username in the author field. Any user could make a comment using a registered username. While this hasn't been a significant problem up until now, it was possible that a user could make changes with malicious intent, disguising themselves as a registered user. The issue was discussed in #11622 and changes have been deployed to

Please note that you are still free to make a comment or create a ticket using a username or email that has not been registered at If you have any questions or concerns please leave a comment below.

Elevated permissions

The permission schema has been modified to give users additional permissions:

  1. Anonymous users can modify ticket properties (TICKET_CHGPROP).
  2. Authenticated users can delete their own attachments.
  3. Authenticated users can modify the description of tickets they report.
  4. Project maintainers can modify the ticket description, cc list and edit comments by others, for tickets associated with their projects.
  5. Project maintainers can delete attachments on their project wiki page and for tickets associated with their projects.

Trac Hacks upgraded to Trac 1.2

The site is now running Trac 1.2. Trac 1.2 is the latest stable release at the time of this writing, and we'll aim to keep on the latest release of Trac going forward.

There was a small amount of downtime related to the upgrade which will be avoided in the future through improved configuration management.

[RESOLVED] Usernames with special characters can't login

Due to a regression in Trac 1.0.7, attempts to login to the site with a username containing special characters such as . or - will result in an error. The issue is captured in trac:#12129 and should be resolved with a new Trac release this week. is now HTTPS-only is now configured to serve all traffic over HTTPS. You likely won't notice any change, HTTP URLs will redirect to HTTPS.

Your Subversion working copies will need to be relocated if checked-out over HTTP. In that case an error like the following will be seen:

svn: E175011: Repository moved permanently to ''; please relocate

The working copy can be fixed using svn relocate:

$ svn relocate http:// https://

For Subversion < 1.8, you'll need to use svn switch --relocate instead.

trac-hacks organization on GitHub has the foremost aims of facilitating collaboration among the community of Trac plugin developers and easing the process of locating plugins for Trac. As GitHub has become more popular for hosting open source projects a greater number of plugins for Trac can be found on that site. Some of those plugins also have a page on, but many do not1.

In order to make it easier to locate Trac plugins on GitHub, a trac-hacks organization has been created. Several users have already moved their plugins to the organization and invites are being sent to authors of original plugins hosted on GitHub.

Users that move their repositories to the organization retain full administrative control over their repositories. Besides greater visibility to your project, the primary advantage to moving your project to the organization is that the trac-hacks administrators team can help your project find a new maintainer if you should choose to no longer continue developing the project.

All interested GitHub users may join the organization, regardless of whether you are currently developing a plugin. You can request to join the one of the organization teams from the Teams page, or send a request to th-users@….

If there's something can do better, please let the community know by commenting here, or in the discussion on the trac-dev mailing list.

  1. 1. If you've not yet created a page on for your plugin hosted on GitHub, you can do so now through the NewHack page. The external tag should be added to plugins hosted outside of trac-hacks. is moving

In the coming months will be moved to a new server, which should provide better availability and performance than the existing hosting. At the moment we continue to experience intermittent but brief downtime, and slow site performance, which we are aiming to resolve with this move.

Uptime Report for Last 30 days

Edgewall, which created and continues to host Trac, Genshi and Babel has generously offered to provide the hosting for From a user standpoint, nothing will change except for an improved experience in accessing the site. Hosting by Edgewall should ensure that remains available with free hosting for Trac plugins for a long time to come.

Following the site move, the admin team can start focusing on more improvements to the site, so stay tuned! Please don't hesitate to comment if you have any questions or concerns.

XML-RPC interface is back

The XML-RPC interface to, made possible by the XmlRpcPlugin, is available once again. !Anonymous users can access through, and authenticated requests can be made through

NewHack is back!

The NewHack tab is once again available to logged-in users, allowing new hacks to be published to the site. This feature has been unavailable since the site upgrade in June 2013. Sorry for its long absence!

Thanks to Michael Renzmann (otaku42) for creating the new version of the TracHacksPlugin, and to Jun Omae (jun66j5) for fixing many issues and making it compatible with Trac 1.0.

If you spot any issues, please let us know by opening a ticket.

1. Trac-(Plug-in-)Entwicklertreffen in Dresden (German developer meeting)

Am 19.06.2013, nach einem der ersten heißen Sommertage des Jahres, trafen sich Entwickler im Cafe Max in Dresden, Louisenstraße 65. Der Abend verflog bei angeregter Unterhaltung. Die Anwesenden waren sich einig, die Gespräche bei Gelegenheit fortzusetzen.


  • Kennenlernen, regionale und persönliche Erlebnisse des gerade erlebten Elbe-Hochwassers
  • frühere und aktuelle Ereignisse der Trac-Gemeinschaft, besonders die t-h.o-Aktualisierung
  • beliebte Entwicklerwerkzeuge und Arbeitstechniken
    • automatische Tests (unittests) und verwandte Konzepte 1
    • persönliche Hilfsmittel zur Nachnutzung 2
    • Hinweise auf frühere Treffen des Dresdner Unix-Stammtischs 3
    • Arbeit mit verteiltem Versionskontrollsystem (DVCS), überwiegend Mercurial
  • Spaß, gutes Essen und erfrischende Getränke
  • Organisatorisches und Planungen

(transcript - English version) On 19th of June 2013, after one of the first hot summer days of the year, developers met at Cafe Max in Dresden, Louisenstraße 65. Excited conversation made the evening flew by. Participants agreed to continue the talks at another occasion.


  • get-together, regional and personal experiences of the flood of river Elbe, that just passed by
  • historical and recent Trac community events, especially the t-h.o upgrade
  • preferred developer tools and working styles
    • unit testing and related concepts 1
    • personal tools for re-use 2
    • references to previous meetings of Dresden Unix user meeting 3
    • working with distributed version control system (DVCS), Mercurial by large
  • fun, good food and freshening drinks
  • organizational matters and planning

-- Reinhard, falkb, hasienda

1 "White Box Testing" a session at PYCON DE 2012 in Leipzig, Germany (German abstract and movie stream record)