DNF (software)

Dandified Yum
DNF running on Fedora 26
Developer(s) Red Hat
Stable release
3.2.0 / 7 August 2018 (2018-08-07)[1]
Repository
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Written in C, Python
Operating system Linux
Available in English
Type Package management system
License GPL v2
Website rpm-software-management.github.io

DNF or Dandified YUM[2][3][4] is the next-generation version of the Yellowdog Updater, Modified (yum), a package manager for .rpm-based distributions. DNF was introduced in Fedora 18,[5] and it has been the default package manager for Fedora since version 22.[6]

Perceived deficiencies of yum which DNF is intended to address include poor performance, high memory usage, and the slowness of its iterative dependency resolution.[7] DNF uses libsolv, an external dependency resolver.[7]

DNF performs package management tasks on top of RPM, and supporting libraries.

DNF was originally written in Python, but efforts are under way to port it to C and move most functionality from Python code into the new libdnf library.[8] libdnf is already used by PackageKit, a Linux distribution-agnostic package system abstraction library, even though the library does not have most of DNF's features.[9]

Adoption

DNF has been the default package manager for Fedora since version 22 which was released in May 2015.[6] The libdnf library is used as a package backend in PackageKit.[9] DNF is also available as an alternate package manager for Mageia Linux since version 6. It may become the default sometime in the future.[10]

Dependencies

libdnf

  • High-level API for DNF and underlying libraries
  • C, license is LGPLv2+

libsolv

  • A free package dependency solver using a satisfiability algorithm
  • For solving packages and reading repositories
  • C, New BSD License

librepo

  • A library providing C and Python (libcURL like) API for downloading Linux repository metadata and packages
  • C, license is LGPLv2+

libcomps

  • Libcomps is alternative for yum.comps library. It is written in pure C as library and there are bindings for python2 and python3.
  • C, license is GPLv2+

References

  1. ↑ "Releases · rpm-software-management/dnf · GitHub". GitHub DNF Repository. 2018-08-07. Retrieved 2018-08-07.
  2. ↑ "DNF". Fedora Project Wiki. Retrieved 21 May 2018.
  3. ↑ "What does DNF stand for". DNF User's FAQ. Retrieved 21 May 2018.
  4. ↑ "README.rst · rpm-software-management/dnf · GitHub". Github DNF Repository, commit 8174427421b995265c6297ebd64024ded099ecf0. Retrieved 21 May 2018.
  5. ↑ Byfield, Bruce. "Will DNF Replace Yum?". Linux Magazine. Retrieved 2015-05-28.
  6. 1 2 Andrew (2015-05-26). "Fedora 22 Released, See What`s New [Workstation]". WebUpd8. Retrieved 2015-05-28.
  7. 1 2 Edge, Jake (2014-01-15). "DNF and Yum in Fedora". LWN.net. Retrieved 2015-03-29.
  8. ↑ Šilhan, Jan (2016-02-24). "DNF into C initiative started". DNF blog. Retrieved 2017-07-05.
  9. 1 2 Aleksandersen, Daniel (2017-07-05). "Use DNF rather than PackageKit on Fedora". Ctrl blog. Retrieved 2017-08-07.
  10. ↑ Larabel, Michael (2016-09-05). "Mageia To Offer DNF, But Will Keep Using URPMI By Default". Phoronix. Retrieved 2017-12-04.
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