# Cal.com

> Open Source Scheduling Infrastructure

**Wikidata**: [Q134218991](https://www.wikidata.org/wiki/Q134218991)  
**Source**: https://4ort.xyz/entity/cal-com

## Summary
Cal.com is an open-source scheduling infrastructure that provides a platform for managing appointments and meetings, offering users free access to its source code under a permissive license while maintaining copyright status.

## Key Facts
- **Core Description**: Open Source Scheduling Infrastructure (source: https://cal.com)
- **License Type**: Copyrighted but distributed under a permissive license allowing libre access to source code
- **Repository**: Source code hosted on GitHub at https://github.com/calcom/cal.com
- **Version History**: Multiple stable versions from 4.7.8 to 6.0.3, with the latest being 6.0.3 (released December 20, 2025)
- **Release Schedule**: Regular updates with stable versions released approximately every 1-2 weeks
- **Technical Classification**: Open-source software categorized as source-available software and freely redistributable software
- **Website**: Official site at https://cal.com
- **Wikidata ID**: Associated with Wikidata item Q186055 (Open Source Scheduling Infrastructure)

## FAQs
### Q: What is the current stable version of Cal.com?
A: The latest stable version is 6.0.3, released on December 20, 2025, with the release notes available at the GitHub repository.

### Q: Where can I find the source code for Cal.com?
A: The source code is publicly available on GitHub at https://github.com/calcom/cal.com.

### Q: What is the relationship between Cal.com and open-source software?
A: Cal.com is an implementation of open-source software principles, providing free access to its source code under a permissive license while maintaining copyright ownership.

### Q: How frequently are new versions released?
A: Stable versions are typically released on a weekly basis, with version numbers following the pattern of major.minor.patch (e.g., 6.0.3).

### Q: What is the purpose of Cal.com?
A: It serves as a scheduling infrastructure for managing appointments and meetings, enabling users to book and coordinate time with others.

## Why It Matters
Cal.com represents a significant advancement in the open-source scheduling ecosystem by providing a comprehensive infrastructure that addresses the growing need for flexible, collaborative scheduling solutions. The platform's open-source nature allows developers and organizations to build upon existing work rather than starting from scratch, fostering innovation and customization. Its impact extends across various industries, from individual professionals to large enterprises, by lowering barriers to entry and enabling seamless integration with other tools. The regular release cycle and community-driven development model demonstrate a commitment to continuous improvement and user satisfaction.

## Notable For
- **Source Code Accessibility**: Provides "libre access" to its original source code through GitHub repository
- **Permissive Licensing**: Distributed under a permissive license that allows free use and redistribution
- **Regular Updates**: Maintains a consistent release schedule with stable versions approximately every 1-2 weeks
- **Technical Foundation**: Built on open-source principles that distinguish it from proprietary scheduling solutions
- **Community Engagement**: Supports collaborative development through public repository and regular updates

## Body
### ### Definition and Core Principles
Cal.com is an open-source scheduling infrastructure designed to facilitate appointment and meeting management. The platform operates under the principle of providing users with free access to its source code through a permissive license, though this access does not automatically grant the right to modify the software. The infrastructure is copyrighted but distributed under terms that allow libre access to the original source code.

### ### Version History and Release Schedule
The software maintains a comprehensive version history spanning from 4.7.8 to the latest 6.0.3 release. Each stable version is accompanied by specific publication dates and release notes, as documented in the GitHub repository. The release cycle follows a pattern where new versions are typically published approximately every 1-2 weeks, with version numbers following the semantic versioning convention (major.minor.patch).

### ### Technical Architecture and Repository
The source code for Cal.com is hosted on GitHub at https://github.com/calcom/cal.com. The repository is associated with Wikidata item Q186055, indicating its classification as open-source scheduling infrastructure. The repository includes detailed release notes for each version, documenting changes, bug fixes, and new features.

### ### Website and Official Documentation
The official website is https://cal.com, which serves as the primary portal for users and developers. The site provides access to documentation, installation guides, and community resources. The platform maintains copyright status while adhering to open-source licensing principles.

### ### Classification and Relationships
Cal.com is classified as open-source software, specifically categorized as source-available software and freely redistributable software. It falls under the broader umbrella of open content and is positioned as the opposite of proprietary software. The software maintains relationships with other open-source projects and follows the principles established by the open-source community.

### ### Community and Development
The development of Cal.com follows community-driven practices, with contributions from various developers and organizations. The regular release schedule demonstrates an active development process, with each version incorporating feedback and improvements from users and contributors. The platform maintains engagement with the open-source community through GitHub discussions and regular updates.

## References

1. [Release 4.7.8. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.8)
2. [Release 4.7.9. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.9)
3. [Release 4.7.10. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.10)
4. [Release 4.7.11. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.11)
5. [Release 4.7.12. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.12)
6. [Release 4.7.13. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.13)
7. [Release 4.7.14. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.14)
8. [Release 4.7.15. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.15)
9. [Release 4.7.16. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.16)
10. [Release 4.7.17. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.17)
11. [Release 4.7.18. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.18)
12. [Release 4.7.19. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.19)
13. [Release 4.7.20. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.20)
14. [Release 4.7.21. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.21)
15. [Release 4.7.22. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.22)
16. [Release 4.7.24. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.24)
17. [Release 4.7.25. 2024](https://github.com/calcom/cal.com/releases/tag/v4.7.25)
18. [Release 4.8.0. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.0)
19. [Release 4.8.1. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.1)
20. [Release 4.8.2. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.2)
21. [Release 4.8.3. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.3)
22. [Release 4.8.4. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.4)
23. [Release 4.8.5. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.5)
24. [Release 4.8.6. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.6)
25. [Release 4.8.7. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.7)
26. [Release 4.8.8. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.8)
27. [Release 4.8.9. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.9)
28. [Release 4.8.10. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.10)
29. [Release 4.8.11. 2024](https://github.com/calcom/cal.com/releases/tag/v4.8.11)
30. [Release 4.8.12. 2025](https://github.com/calcom/cal.com/releases/tag/v4.8.12)
31. [Release 4.8.13. 2025](https://github.com/calcom/cal.com/releases/tag/v4.8.13)
32. [Release 4.8.14. 2025](https://github.com/calcom/cal.com/releases/tag/v4.8.14)
33. [Release 4.8.15. 2025](https://github.com/calcom/cal.com/releases/tag/v4.8.15)
34. [Release 4.8.16. 2025](https://github.com/calcom/cal.com/releases/tag/v4.8.16)
35. [Release 4.8.18. 2025](https://github.com/calcom/cal.com/releases/tag/v4.8.18)
36. [Release 4.8.19. 2025](https://github.com/calcom/cal.com/releases/tag/v4.8.19)
37. [Release 4.9.0. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.0)
38. [Release 4.9.1. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.1)
39. [Release 4.9.2. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.2)
40. [Release 4.9.3. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.3)
41. [Release 4.9.4. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.4)
42. [Release 4.9.5. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.5)
43. [Release 4.9.6. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.6)
44. [Release 4.9.7. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.7)
45. [Release 4.9.8. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.8)
46. [Release 4.9.9. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.9)
47. [Release 4.9.10. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.10)
48. [Release 4.9.11. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.11)
49. [Release 4.9.12. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.12)
50. [Release 4.9.13. 2025](https://github.com/calcom/cal.com/releases/tag/v4.9.13)