Debian is one of the oldest and most influential Linux distributions. It was first announced on August 16, 1993, by Ian Murdock. The project aimed to create a free operating system that would be developed openly and collaboratively by volunteers from around the world.
- 1993: Debian project announced by Ian Murdock on August 16.
- 1994: The first release, Debian 0.91, is made available.
- 1996: Debian 1.1 “Buzz” is released, named after Buzz Lightyear from Toy Story.
- 1999: The Advanced Package Tool (APT) is introduced, revolutionizing package management.
- 2000: Debian 2.2 “Potato” is released, marking significant improvements in stability and usability.
- 2002: Debian 3.0 “Woody” is released with 2,000+ packages and cryptographic package verification.
- 2004: Debian 3.1 “Sarge” introduces the Debian Installer, making installation easier.
- 2007: Debian 4.0 “Etch” adds graphical installer and support for multiple architectures.
- 2011: Debian 6.0 “Squeeze” introduces dependency-based boot scripts and multi-arch support.
- 2013: Debian 7.0 “Wheezy” includes multiarch support, allowing installation of packages from multiple architectures.
- 2015: Debian 8.0 “Jessie” introduces systemd as the default init system.
- 2017: Debian 9.0 “Stretch” adds Wayland support and AppArmor profiles.
- 2019: Debian 10 “Buster” is released, featuring AppArmor enabled by default for enhanced security.
- 2021: Debian 11 “Bullseye” is released, continuing the tradition of stability and robustness.
- 2023: Debian 12 “Bookworm” is released, starting the Debian 12 series with improved hardware support.
- 2024: Debian 12 “Bookworm” continues as stable with multiple point releases (12.5-12.8). Debian 11 “Bullseye” enters LTS-only support.
- 2025: Debian 13 “Trixie” is released (August 9, 2025), becoming the new stable series with enhanced security features and updated toolchain. Multiple point releases follow (13.1-13.3).
- 2026: Debian 13.4 (March 2026), 13.5 (April 2026), and Debian 12.14 (May 2026) ship important updates. Debian 11 “Bullseye” LTS support ends in August 2026. Debian 14 “Forky” in active development for ~2027 release.
Debian continues as one of the most respected and widely-used Linux distributions:
- Stable Release: Debian 13 “Trixie” (latest point release: 13.5, April 12, 2026)
- Full support until: August 9, 2028
- LTS support until: June 30, 2030
- Features: GCC 14, Python 3.13, Linux kernel 6.12 LTS, GNOME 48, KDE Plasma 6
- Oldstable: Debian 12 “Bookworm” (latest point release: 12.14, May 16, 2026)
- Full support ended: June 10, 2026
- LTS support until: June 30, 2028
- Transitioned to LTS mode with security-only updates
- LTS Release: Debian 11 “Bullseye” (LTS support ended August 31, 2026; ELTS available via third parties)
- Testing: “Forky” (rolling development for next stable, expected ~2027)
- Unstable: “Sid” (continuous development branch)
- Release Cycle: Approximately 2 years between major releases; point releases every 1-2 months
- Support Model: ~3 years full support + ~2 years LTS = ~5 years total support per release
- Package Count: Over 62,000 packages in stable repository (growth from 59,000 in 2025)
- Architecture Support: amd64, i386, arm64, armel, armhf, mips64el, ppc64el, s390x, riscv64, and more
- 2024-2026: Debian 13 “Trixie” released as new stable (Aug 2025); Debian 12 transitions to oldstable; continued point releases for both
- 2026: Debian 13.5 (April 2026) brings latest security updates and bug fixes; Debian 12.14 (May 2026) continues LTS support
- Security: Continued security updates through Debian Security Team and LTS program; security updates delivered via point releases; over 1,200 security advisories published for Trixie
- Hardware Support: Improved support for modern hardware, ARM architectures, cloud platforms, and RISC-V; riscv64 promoted to official architecture status
- Free Software: Maintained strict adherence to Debian Free Software Guidelines (DFSG); ongoing non-free firmware discussions for installer
- Community Growth: Over 1,100 active Debian Developers (up from 1,000 in 2025) and thousands of contributors worldwide
- Debian 14 “Forky”: In active development through testing branch; expected release ~2027; early package transitions underway
- Extended LTS (ELTS): Third-party paid support available for releases beyond standard LTS period; growing enterprise adoption
- Cloud & Containers: Official images updated for Debian 13.5; optimized deployments across AWS, Azure, GCP, and OCI
- Package Milestone: Repository surpasses 62,000 packages in stable, marking significant growth in available software
¶ Philosophy and Community
Debian is known for its strict adherence to the principles of free software. The Debian Social Contract and the Debian Free Software Guidelines (DFSG) are foundational documents that guide the project’s development and ensure that all software included in Debian is free to use, modify, and distribute.
The Social Contract defines Debian’s commitments to the free software community:
- Debian will remain 100% free software
- Debian will give back to the free software community
- Debian will not hide problems
- Debian’s priority is users and free software
- Debian will include non-free software if it helps users, but will clearly distinguish it
The DFSG defines what constitutes “free software” for Debian:
- Free redistribution
- Source code must be included
- Modifications must be allowed
- Integrity of author’s source code must be preserved
- No discrimination against persons or groups
- No discrimination against fields of endeavor
- Distribution of license must not depend on product distribution
- License must not be specific to Debian
- License must not restrict other software
The Debian community is composed of thousands of developers and contributors from around the globe. The project is managed by the Debian Project Leader (DPL), who is elected annually by the Debian developers through a democratic voting process.
Key organizational structures:
- Debian Project Leader (DPL): Elected annually, represents Debian and makes final decisions
- Debian Developers (DD): Full voting members with upload rights to the archive
- Debian Maintainers (DM): Limited upload rights for specific packages
- Project Bazaar: Non-developers who contribute in various ways
Debian releases follow a time-based model with quality gates:
- Development starts immediately after previous release
- Transitions from unstable to testing when packages meet criteria
- Freeze periods ensure stability before release
- Transition freeze: No major transitions
- Full freeze: No new packages, only bug fixes
- Point releases: Critical fixes only
Debian 13 “Trixie” represents the latest stable release with significant improvements:
- GCC 14 - Latest GNU Compiler Collection with improved optimizations and C++23 support
- Glibc 2.39 - Enhanced C library with performance improvements
- Binutils 2.42 - Updated binary utilities for modern binary handling
- Linux kernel 6.12 LTS - Long-term support kernel with modern hardware enablement
- LLVM/Clang 17 - Alternative compiler toolchain
- Python 3.13 - Latest Python with performance improvements and new features
- Perl 5.40 - Updated Perl interpreter
- Ruby 3.3 - Modern Ruby with YJIT improvements
- Node.js 20 LTS - Long-term support JavaScript runtime
- Go 1.22 - Updated Go toolchain
- Rust 1.78 - Memory-safe systems programming
- PHP 8.4 - Modern PHP with improved performance and features
- Java 21 LTS - Long-term support OpenJDK
- GNOME 48 - Latest GNOME with improved Wayland support and performance
- KDE Plasma 6 - Modern Plasma desktop with Qt6 foundation
- Xfce 4.20 - Lightweight desktop with modern features
- MATE 1.28 - Classic desktop experience
- Cinnamon 6.0 - Modern desktop environment
- LXQt 2.0 - Ultra-lightweight Qt-based desktop
- AppArmor - Mandatory Access Control enabled by default for enhanced confinement
- Secure Boot - Improved UEFI Secure Boot support with better key management
- TPM 2.0 - Hardware security module support for disk encryption and attestation
- Encrypted home directories - Simplified setup during installation
- Hardened toolchain - Stack protector, PIE, RELRO by default
- ASLR improvements - Enhanced address space layout randomization
- Kernel self-protection - Additional kernel hardening options enabled
- amd64 - Primary 64-bit x86 architecture (most widely used)
- arm64 - 64-bit ARM servers and devices (growing rapidly)
- armel/armhf - 32-bit ARM embedded systems
- i386 - 32-bit x86 (limited support, legacy compatibility)
- mips64el - MIPS 64-bit little-endian
- ppc64el - POWER8/POWER9 little-endian
- s390x - IBM Z mainframes
- riscv64 - RISC-V 64-bit (promoted to official architecture status in Trixie)
- Debian Installer - Updated installer with better hardware detection and UEFI support
- Live images - Test Debian before installing with full desktop experience
- Netboot - Network installation for all architectures via PXE
- Cloud images - Pre-built images for AWS, Azure, GCP, and OpenStack
- Container images - Official Docker and OCI images, updated with each point release
- Raspberry Pi support - Optimized images for Raspberry Pi 4 and 5
- Boot time - Faster boot through parallel service startup
- Package management - APT performance improvements and better dependency resolution
- Memory usage - Reduced memory footprint for server installations
- Disk I/O - Improved I/O scheduling and filesystem defaults
¶ Impact and Legacy
Debian has had a profound impact on the Linux ecosystem. Many popular distributions, including Ubuntu, Linux Mint, and Raspbian, are based on Debian. Its package management system and policies have set standards for other distributions to follow.
Debian serves as the foundation for numerous popular distributions:
| Distribution |
Based on |
Focus |
| Ubuntu |
Debian |
User-friendliness, regular releases |
| Linux Mint |
Ubuntu/Debian |
Desktop ease of use |
| Kali Linux |
Debian |
Security testing and penetration testing |
| Tails |
Debian |
Privacy and anonymity |
| MX Linux |
Debian |
Lightweight desktop |
| Pop!_OS |
Ubuntu/Debian |
Developers and creators |
| Raspberry Pi OS |
Debian |
ARM devices, Raspberry Pi |
| Proxmox VE |
Debian |
Virtualization platform |
| Proxmox Backup Server |
Debian |
Backup and disaster recovery |
| Devuan |
Debian |
systemd-free Debian fork |
| PureOS |
Debian |
Privacy and security focused |
| Deepin |
Debian |
Chinese desktop distribution |
| BunsenLabs |
Debian |
Lightweight Openbox desktop |
| antiX |
Debian |
Very old hardware support |
Debian introduced several innovations adopted by other distributions:
- APT package management: Now used by Ubuntu and derivatives
- .deb package format: Widely adopted standard
- Multiarch support: Run multiple architectures on one system
- Dependency-based boot: Improved boot sequence management
- Live installer: Test before installing
- Package signing: Cryptographic verification of packages
- Backports: Newer software for stable releases
- Stable release model: Focus on tested, stable software over bleeding edge
Debian provides extended support through the LTS team:
- Each release receives security updates for approximately 5 years
- Community-driven LTS program extends support beyond official security team
- Critical for enterprise and production environments
- Debian 11 “Bullseye” LTS ended August 31, 2026 (ELTS available via third parties)
- Debian 10 “Buster” LTS ended June 30, 2024
- Debian 12 “Bookworm” enters LTS phase June 2026, support until June 2028
- Extended LTS (ELTS) available via third-party providers for older releases (up to 10 years total)
Debian is widely used in enterprise and production environments:
- Web servers: Powering millions of websites worldwide
- Cloud infrastructure: Base image for major cloud providers (AWS, Azure, GCP, OCI)
- Container base: Official Docker and OCI images; most downloaded base image
- Network appliances: Firewalls, routers, load balancers
- Development environments: Preferred base for developers worldwide
- Scientific computing: Research institutions and universities
- Embedded systems: IoT devices and embedded platforms
- Telecommunications: Carrier-grade deployments
- Financial services: Banking and trading platforms requiring stability
Debian continues to thrive in 2026 with strong adoption across multiple sectors:
- Cloud deployments: Debian 13 “Trixie” images available across all major cloud providers
- Container adoption: Official images updated for 13.5; widely used in Docker and Kubernetes
- Edge computing: Lightweight footprint ideal for edge deployments
- AI/ML workloads: Updated toolchains support modern AI/ML frameworks
- Government use: Several governments standardize on Debian for digital sovereignty
- Education: Widely used in schools and universities for teaching Linux
- Nonprofit organizations: Preferred choice for budget-conscious organizations
- Developer workstations: Growing adoption among software developers
Debian continues to be a popular choice for servers, desktops, and embedded systems due to its stability, security, and extensive software repository.
For more information, here is an overview about Debian.
Browse Debian history by year: