ReactOS

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ReactOS User Interface

ReactOS is an open source operating system by the ReactOS Foundation. Unlike Unix-like operating systems, ReactOS re-implements the NT architecture and Windows API as a standalone OS. Its goal is to reach program and driver compatibility with Windows. As of 2017, the support level is on par with Windows Server 2003 SP2. The latest version is 0.4.8.

Development[edit]

In 1996, a group formed under the name FreeWin95 with the intention of making an open source Windows 95 clone. Development on FreeWin95 halted soon after, as source code contributions never materialized. After a short hiatus, the group reformed in 1998 and changed the project's name to ReactOS. Most development is made gradually, with releases set every 2-6 months. A version number is assigned to major releases (such as 0.4.6), while nightly builds and source code builds use their commit number instead.

Current state[edit]

ReactOS is still considered alpha-quality software and only recommended for evaluation and testing purposes. Installation, hardware detection, booting, and running programs can suffer from bugs. As the operating system is open source, it can be freely built from source code, or downloaded from the nightly builds website.

Virtualization support exists for QEMU, however, it can run on other hypervisors. It's possible to install ReactOS on a physical machine, however, this configuration can be risky.

Builds[edit]

ReactOS 0.0.x[edit]

  • ReactOS 0.0.1
  • ReactOS 0.0.2
  • ReactOS 0.0.3
  • ReactOS 0.0.4
  • ReactOS 0.0.5
  • ReactOS 0.0.6
  • ReactOS 0.0.7 (Released on July 20, 1998)
  • ReactOS 0.0.8 (Released on August 24, 1998)
  • ReactOS 0.0.9 (Released on August 28, 1998)
  • ReactOS 0.0.10 (Released on September 5, 1998)
  • ReactOS 0.0.11 (Released on September 13, 1998)
  • ReactOS 0.0.12 (Released on October 4, 1998)
  • ReactOS 0.0.13 (Released on November 9, 1998)
  • ReactOS 0.0.14 (Released on June 6, 1999)
  • ReactOS 0.0.15 (Released on January 20, 2000)
  • ReactOS 0.0.16 (Released on August 4, 2000)
  • ReactOS 0.0.17 (Released on February 9, 2001)
  • ReactOS 0.0.18 (Released on August 1, 2001)
  • ReactOS 0.0.19 (Released on March 5, 2002)
  • ReactOS 0.0.20 (Released on August 6, 2002)
  • ReactOS 0.0.21 (Released on October 31, 2002)

ReactOS 0.1.x[edit]

  • ReactOS 0.1.0 (Released on February 1, 2003)
  • ReactOS 0.1.1 (Released on March 30, 2003)
  • ReactOS 0.1.2 (Released on July 2, 2003)
  • ReactOS 0.1.3 (Released on August 30, 2003)
  • ReactOS 0.1.4 (Released on October 8, 2003)
  • ReactOS 0.1.5 (Released on November 13, 2003)

ReactOS 0.2.x[edit]

  • ReactOS 0.2.0 (Released on January 25, 2004)
  • ReactOS 0.2.1 (Released on March 3, 2004)
  • ReactOS 0.2.2 (Released on April 27, 2004)
  • ReactOS 0.2.3 (Released on June 26, 2004)
  • ReactOS 0.2.4 (Released on September 13, 2004)
  • ReactOS 0.2.5 (Released on January 2, 2005)
  • ReactOS 0.2.6 (Released on April 9, 2005)
  • ReactOS 0.2.7 (Released on August 21, 2005)
  • ReactOS 0.2.8 (Released on October 29, 2005)
  • ReactOS 0.2.9 (Released on December 22, 2005)

ReactOS 0.3.x[edit]

  • ReactOS 0.3.0 (Released on August 27, 2006)
  • ReactOS 0.3.1 (Released on March 10, 2007)
  • ReactOS 0.3.2 (Never Was Released)
  • ReactOS 0.3.3
  • ReactOS 0.3.4
  • ReactOS 0.3.5
  • ReactOS 0.3.6
  • ReactOS 0.3.7
  • ReactOS 0.3.8
  • ReactOS 0.3.9
  • ReactOS 0.3.10
  • ReactOS 0.3.11
  • ReactOS 0.3.12
  • ReactOS 0.3.13
  • ReactOS 0.3.14
  • ReactOS 0.3.15
  • ReactOS 0.3.16
  • ReactOS 0.3.17

ReactOS 0.4.x[edit]