# Canorus

> software

**Wikidata**: [Q1033594](https://www.wikidata.org/wiki/Q1033594)  
**Source**: https://4ort.xyz/entity/canorus

## Summary
Canorus is a free software application designed to run on the Linux operating system. It is the successor to NoteEdit and is distributed under the GNU General Public License, version 3.0. The project is actively maintained, with source code available on GitHub and SourceForge.

## Key Facts
- **Entity Type:** Free software.
- **Predecessor:** Follows NoteEdit.
- **License:** GNU General Public License, version 3.0 (adopted August 22, 2015).
- **Operating System:** Linux (family of Unix-like operating systems).
- **Website:** https://canorus.org/
- **Latest Stable Release:** Version 0.7 (released October 23, 2011).
- **Latest Development Release:** Version 0.7.3rc3 (release candidate; released June 18, 2018).
- **Code Repository:** Hosted on GitHub (Git) and SourceForge (Apache Subversion).
- **Package Availability:** Available in Arch Linux (as `canorus`) and AUR (as `canorus-svn`, `canorus-git`).

## FAQs
### Q: What operating systems does Canorus support?
A: Canorus is designed to run on Linux, a family of Unix-like operating systems. The software is also available as a package for Arch Linux.

### Q: Under what license is Canorus distributed?
A: Canorus is free software distributed under the GNU General Public License, version 3.0. This license allows users to freely run, study, change, and distribute the software. The transition to version 3.0 occurred on August 22, 2015.

### Q: Where can I find the source code for Canorus?
A: The source code is maintained in two primary locations: a Git repository on GitHub and an Apache Subversion (SVN) repository on SourceForge.

## Why It Matters
Canorus represents a specific tier of open-source utility within the Linux ecosystem, serving as a continuation of the NoteEdit project. As free software, it provides users with the legal and technical freedom to modify and redistribute the application, ensuring that the codebase remains accessible to the community regardless of commercial interests. Its development trajectory, marked by a license upgrade to GPL 3.0 in 2015 and ongoing release candidates as late as 2018, demonstrates a sustained commitment to maintenance and modernization within the free software community.

The project bridges older development methodologies (SVN/SourceForge) with modern standards (Git/GitHub), making it a relevant case study in open-source project migration and version control evolution. By being packaged for Arch Linux and available in the AUR, it remains accessible to a wide range of Linux enthusiasts and developers, ensuring its continued utility and potential for future community-driven development.

## Notable For
- **Lineage:** Being the direct successor to the NoteEdit software.
- **Licensing:** Transitioning to the GNU General Public License v3.0 in 2015, aligning with modern free software standards.
- **Repository Migration:** Maintaining dual presence on both SourceForge (SVN) and GitHub (Git), reflecting a shift in development hosting preferences.
- **Long-term Development:** spanning over a decade of releases from version 0.2.5 in 2007 to version 0.7.3rc3 in 2018.
- **Linux Integration:** Availability in the Arch Linux User Repository (AUR) under multiple package formats (`canorus-svn`, `canorus-git`).

## Body

### Development History
Canorus has a documented release history spanning over a decade. The project began with early versions such as 0.2.5 (March 20, 2007) and 0.3 (May 13, 2007), progressing rapidly through version 0.4 (September 30, 2007) and 0.5 (January 27, 2008).

A significant stable release, version 0.7, was issued on October 23, 2011. Development continued in the following years with release candidates, including version 0.7.2rc1 (April 11, 2015) and version 0.7.3rc1 (May 21, 2017). The most recent recorded release candidate is version 0.7.3rc3, which was made available on June 18, 2018.

### Licensing and Distribution
The software is classified as free software, defined by terms that allow users to freely run, study, change, and distribute it. On August 22, 2015, the project officially adopted the GNU General Public License, version 3.0.

Canorus is primarily targeted at the Linux operating system. It is accessible to users through various channels, including the Arch Linux package database (`canorus`) and the Arch User Repository (AUR) via `canorus-svn` and `canorus-git` packages.

### Technical Infrastructure
The project utilizes a distributed development model. The official website is hosted at `https://canorus.org/`.
*   **Source Code:** The codebase is accessible via a modern Git repository on GitHub (`https://github.com/canorusmusic/canorus`) and a legacy Apache Subversion (SVN) repository hosted on SourceForge (`svn://svn.code.sf.net/p/canorus/code/trunk`).
*   **Project Pages:** The project maintains a presence on SourceForge as "canorus" and is indexed in the Free Software Directory.
*   **Identifiers:** The project is tracked in Repology as `canorus` and has a Google Knowledge Graph ID of `/g/112yfv9_n`. It also has a presence on Pro-Linux.de (database ID 9497).

## References

1. [Source](https://github.com/canorusmusic/canorus/commit/47d705d0182103b5c31cf46ef7b16c7b22f88ab7)
2. [Canorus / News](https://sourceforge.net/p/canorus/news/?source=navbar)
3. [Release 0.7. 2020](https://github.com/canorusmusic/canorus/releases/tag/0.7)
4. [Source](https://sourceforge.net/projects/canorus/files/0.7.3/)
5. [Canorus 0.7.3rc3 released. 2018](https://sourceforge.net/p/canorus/mailman/message/36346157/)
6. [Release 0.2.5. 2020](https://github.com/canorusmusic/canorus/releases/tag/0.2.5)
7. [Canorus 0.2.5 is out. 2007](https://sourceforge.net/p/canorus/mailman/message/28312799/)
8. [Release 0.3. 2020](https://github.com/canorusmusic/canorus/releases/tag/0.3)
9. [Canorus 0.3 released. 2007](https://sourceforge.net/p/canorus/mailman/message/28312801/)
10. [Release 0.4. 2020](https://github.com/canorusmusic/canorus/releases/tag/0.4)
11. [Canorus 0.4 released. 2007](https://sourceforge.net/p/canorus/mailman/message/28312906/)
12. [Release 0.5. 2020](https://github.com/canorusmusic/canorus/releases/tag/0.5)
13. [Canorus 0.5 released. 2008](https://sourceforge.net/p/canorus/mailman/message/28312957/)
14. [Source](https://api.github.com/repos/canorusmusic/canorus)
15. [Source](https://sourceforge.net/p/canorus/code/HEAD/tree/)