# SDR++

> software

**Wikidata**: [Q125491154](https://www.wikidata.org/wiki/Q125491154)  
**Source**: https://4ort.xyz/entity/sdr-q125491154

## Summary
SDR++ is a software application classified as a non-tangible executable component of a computer. It is open-source software distributed under the GNU General Public License version 3.0. The project is actively maintained, with source code hosted on GitHub and a dedicated website at sdrpp.org.

## Key Facts
- **Entity Type:** Software
- **Aliases:** SDRPlusPlus, sdrpp
- **License:** GNU General Public License, version 3.0
- **Website:** https://www.sdrpp.org
- **Source Code Repository:** https://github.com/AlexandreRouma/SDRPlusPlus
- **Latest Rolling Version:** 1.2.1 (Nightly Build)
- **First Stable Release:** Version 1.0.0 released on August 1, 2021

## FAQs
### Q: What is the licensing model for SDR++?
A: SDR++ is distributed under the GNU General Public License, version 3.0. This allows users to freely use, modify, and distribute the software.

### Q: Where can the source code for SDR++ be found?
A: The source code is hosted on GitHub at the repository `AlexandreRouma/SDRPlusPlus`.

### Q: When was the first stable version of SDR++ released?
A: The first stable release, version 1.0.0, was published on August 1, 2021. This was followed quickly by patches 1.0.1, 1.0.2, and 1.0.3 within the same month.

## Why It Matters
SDR++ serves as a modern software tool within its domain, distinct for its open-source availability under the GPL-3.0 license. Its development cycle demonstrates a rapid iteration process, evidenced by the release of four stable updates within the first ten days of August 2021. The project has transitioned to a rolling release model for its nightly builds (versions 1.1.0, 1.2.0, 1.2.1), indicating ongoing active development and immediate delivery of new features to users. By hosting its code publicly on GitHub and maintaining a dedicated web portal, SDR++ provides an accessible and transparent resource for users and developers.

## Notable For
- **Open Source Accessibility:** Freely available under the GNU General Public License v3.0.
- **Rapid Initial Development:** Released four stable versions (1.0.0 through 1.0.3) within a nine-day span in August 2021.
- **Rolling Releases:** Utilizes a "nightly build" system for version 1.1.0 and later, allowing continuous integration of updates.
- **Active Maintenance:** Version history tracks updates through to version 1.2.1.

## Body

### Licensing and Identity
SDR++ is designated as a software entity, specifically a "non-tangible executable component of a computer." It operates under the **GNU General Public License, version 3.0**, ensuring that the software remains free and open for public use and modification. It is alternatively known by the aliases **SDRPlusPlus** and **sdrpp**.

### Version History
The development of SDR++ is marked by a distinct stable release phase in 2021 followed by a shift to rolling releases.

**2021 Stable Releases:**
- **Version 1.0.0:** Released August 1, 2021.
- **Version 1.0.1:** Released August 3, 2021.
- **Version 1.0.2:** Released August 8, 2021.
- **Version 1.0.3:** Released August 9, 2021.
- **Version 1.0.4:** Released October 18, 2021.

**Rolling Releases (Nightly Builds):**
- **Version 1.1.0:** Initiated around November 22, 2022.
- **Version 1.2.0:** Identified in commit history and archives.
- **Version 1.2.1:** The current rolling release/daily build, preferred in the structured data.

### Online Presence
The project maintains a primary web presence at **https://www.sdrpp.org** (English). The development is centered around its source code repository hosted at **https://github.com/AlexandreRouma/SDRPlusPlus**.

## References

1. [Source](https://github.com/AlexandreRouma/SDRPlusPlus/blob/master/license)
2. [Release 1.0.0. 2021](https://github.com/AlexandreRouma/SDRPlusPlus/releases/tag/1.0.0)
3. [Release 1.0.1. 2021](https://github.com/AlexandreRouma/SDRPlusPlus/releases/tag/1.0.1)
4. [Release 1.0.2. 2021](https://github.com/AlexandreRouma/SDRPlusPlus/releases/tag/1.0.2)
5. [Release 1.0.3. 2021](https://github.com/AlexandreRouma/SDRPlusPlus/releases/tag/1.0.3)
6. [Source](https://github.com/AlexandreRouma/SDRPlusPlus/releases/tag/1.0.4)
7. [Release SDR++ Nightly Build (currently 1.1.0)](https://github.com/AlexandreRouma/SDRPlusPlus/releases)
8. [Source](https://github.com/AlexandreRouma/SDRPlusPlus/commit/27072e9fe75fb2725a7798d5f56efbc530af7e5b)
9. [Source](https://github.com/AlexandreRouma/SDRPlusPlus/commit/69161253e8d8467215adbb45399f70ed602381e6#diff-76f0532b68cad1659582c36af1b7222a332d8fb1809ce89a58d61c7c70837f56R3)
10. [SDR++ Nightly Build (currently 1.2.1)](https://github.com/AlexandreRouma/SDRPlusPlus/releases/tag/nightly)
11. [Source](https://www.sdrpp.org/)