# Launchpad

> This is the documentation for Canonical Launchpad, an open source platform that
> enables open source developers to collaborate with others to build and publish open
> source software.


2026 CC-BY-SA, Canonical Ltd.

## Pages in this subsection

- [Bugs](https://ubuntu.com/docs/launchpad/user/reference/bugs/index.html.md): Complete bug tracking reference for Launchpad including attachments, subscriptions, heat, expiry, and email interfaces.
- [Bug attachment](https://ubuntu.com/docs/launchpad/user/reference/bugs/bug-attachment/index.html.md): Bug attachment reference for adding screenshots, data files, patches, and documentation to Launchpad bug reports.
- [Bug expiry](https://ubuntu.com/docs/launchpad/user/reference/bugs/bug-expiry/index.html.md): Understanding bug expiry in Launchpad including automatic expiration rules, time frames, and incomplete bug lifecycle.
- [Bug heat](https://ubuntu.com/docs/launchpad/user/reference/bugs/bug-heat/index.html.md): Understand the bug heat scoring system in Launchpad for prioritizing bugs based on activity, subscribers, and duplicate reports.
- [Bug subscription](https://ubuntu.com/docs/launchpad/user/reference/bugs/bug-subscription/index.html.md): Bug subscription reference for managing notifications and filters.
- [Email interface command reference](https://ubuntu.com/docs/launchpad/user/reference/bugs/email-interface-command-reference/index.html.md): Complete reference of email interface commands for managing Launchpad bugs via email including syntax and examples.
- [Multi-project bugs](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/index.html.md): Multi-project bug tracking reference for managing issues that span multiple software projects in Launchpad.
- [Multi-project bugs](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/about-multi-project-bugs/index.html.md): Reference guide for working with multi-project bugs in Launchpad and external bug trackers.
- [Tracking bugs across multiple projects](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/tracking-multi-project-bugs/index.html.md): Reference guide for tracking bugs across multiple projects in Launchpad.
- [Roles](https://ubuntu.com/docs/launchpad/user/reference/bugs/roles/index.html.md): Reference guide to bug tracking roles in Launchpad.
- [Bug supervisor](https://ubuntu.com/docs/launchpad/user/reference/bugs/roles/bug-supervisor/index.html.md): Bug supervisor role reference covering responsibilities, permissions, and bug management workflows in Launchpad projects.
- [The Malone xmlrpc interface](https://ubuntu.com/docs/launchpad/user/reference/bugs/malone-xmlrpc-interface/index.html.md): Malone XML-RPC interface reference for programmatic access to Launchpad's bug tracking system.
- [Turning a bug into a question](https://ubuntu.com/docs/launchpad/user/reference/bugs/bug-to-question/index.html.md): Understanding when to convert bugs to questions in Launchpad.

## Optional

- [Top-level llms.txt](https://ubuntu.com/docs/launchpad/llms.txt): Complete documentation index.