DragonFly BSD
Free and open-source Unix-like operating system / From Wikipedia, the free encyclopedia
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DragonFly BSD is a free and open-source Unix-like operating system forked from FreeBSD 4.8. Matthew Dillon, an Amiga developer in the late 1980s and early 1990s and FreeBSD developer between 1994 and 2003, began working on DragonFly BSD in June 2003 and announced it on the FreeBSD mailing lists on 16 July 2003.[4]
Developer | Matthew Dillon |
---|---|
OS family | Unix-like (BSD) |
Working state | Current |
Source model | Open source |
Initial release | 1.0 / 12 July 2004; 19 years ago (2004-07-12) |
Latest release | 6.4.0 / 30 December 2022; 16 months ago (2022-12-30)[1] |
Repository | |
Available in | English |
Package manager | pkg |
Platforms | x86-64 |
Kernel type | Hybrid[2] |
Userland | BSD |
Default user interface | Unix shell |
License | BSD[3] |
Official website | www |
Dillon started DragonFly in the belief that the techniques adopted for threading and symmetric multiprocessing in FreeBSD 5[5] would lead to poor performance and maintenance problems. He sought to correct these anticipated problems within the FreeBSD project.[6] Due to conflicts with other FreeBSD developers over the implementation of his ideas,[7] his ability to directly change the codebase was eventually revoked. Despite this, the DragonFly BSD and FreeBSD projects still work together, sharing bug fixes, driver updates, and other improvements.
Intended as the logical continuation of the FreeBSD 4.x series, DragonFly has diverged significantly from FreeBSD, implementing lightweight kernel threads (LWKT), an in-kernel message passing system, and the HAMMER file system.[8] Many design concepts were influenced by AmigaOS.[9]