Phabricator/ce

Phabricator is an open-source software development platform. The Wikimedia Foundation maintains its own instance of Phabricator to maintain the software for all of the Wikimedia projects and related tools.

Phabricator is similar to Github in that it is used for tracking issues and project management. It is not used for storing and maintaining code (Wikimedia uses Gerrit for this).

Go to Wikimedia Phabricator

Overview
Here is a general overview on how Phabricator works:
 * Phabricator consists of Tasks (similar to Github issues).
 * Tasks are not specific to one project or "repository" and instead use Tags to relate themselves with the Project(s) that are working on them.
 * Tasks can be one of three Types: Generic, Bug Report, and Feature.
 * Tasks have a Status of either: Open, Resolved, In Progress, Stalled, Declined, or Invalid.
 * Tasks have a Priority to indicate their importance. These include: Unbreak Now!, Needs Triage, High, Medium, Low, and Lowest.
 * Tasks can have Subscribers, or users that receive notifications when they are changed.
 * Tasks can be Assigned To users to indicate who is working on them.
 * Tasks can specify a Due Date they are expected to be completed.
 * Tasks have a Description to explain what they are about. Anyone with an account can edit a Task description if it needs to be updated.
 * Tasks can have Related Tasks like Subtasks and Parent Tasks. Highest-parent tasks are often named and tagged as an Epic.
 * Tasks can have Related Objects like Commits, Mocks, and Revisions.
 * Users can add Tokens to a Task to indicate their appreciation for it. These are similar to the emoji reactions you can add to issues on Github.
 * Users can discuss Tasks by Commenting on them.
 * Phabricator has Projects to organize the types of things that are worked on.
 * Projects use Workboards to organize Tasks and which they are working on
 * Projects have Members or users that are associated with the project and Watchers who receive notifications when the Tasks of a project change.
 * Projects can consist of Subprojects.
 * GerritBot posts comments to Tasks about what code is being changed on Gerrit related to a Task.

Get started
If you have questions, check the Help page. Your questions are very welcome.

For a basic overview of what Phabricator is and can do, watch the tutorial videos (or if your bandwidth is limited).

Common first actions are:

Check out the documentation and short videos on.
 * Creating your account
 * Creating a task
 * If you maintain projects: Creating a project and learning about project management in Phabricator.
 * Etiquette
 * Learn to use Phabricator. Play and test in our Cloud Services instance as much as you want (the test instance is unfortunately not always online).

Weekly update / maintenance window
Phabricator doesn't have releases, and therefore it is up to us to decide how close do we want to follow the upstream version. There is a weekly window for updates and other maintenance tasks on Wednesdays at 5:00PM Pacific (Thursday Midnight, 0:00 UTC) (check your timezone) and users will get redirected to Phabricator/Maintenance. We don't necessarily update Phabricator every week, but we reserve this window to use as needed, usually twice per month, depending on the urgency of outstanding bugs fixed upstream. The expected downtime during this window is between 0 and 30 minutes.

For specific bugs and changes, query for resolved tasks of the latest update date under "Milestones" and check the corresponding latest upstream Changelog items.