# Delta ISO

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Delta_ISO
> Markdown URL: https://mediated.wiki/source/Delta_ISO.md
> Source: https://en.wikipedia.org/wiki/Delta_ISO
> Source revision: 1295595451
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

{{Short description|Mechanism to update ISO image}}
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{{No footnotes|date=March 2020}}
{{Notability|date=October 2024}}
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A '''delta ISO''' is used to update an existing [ISO image](/source/ISO_image) which contains [RPM Package Manager](/source/RPM_Package_Manager) (RPM) files. It utilizes  DeltaRPMs, a form of [delta compression](/source/delta_compression), for RPMs which have changed between the old and new versions of the ISO. Delta ISOs help save disk space and reduce download times, as they include only the files that have been updated in the new version of the ISO, a user can apply it to update the outdated ISO. This technique is used by some RPM-based Linux distributions, such as [Fedora](/source/Fedora_(operating_system)) and [openSUSE](/source/openSUSE).

==External links==
* [https://fedoraproject.org/wiki/Delta_ISOs Fedora]
* [https://www.opensuse.org/ openSUSE]

Category:Linux package management-related software
Category:SUSE Linux

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Adapted from the Wikipedia article [Delta ISO](https://en.wikipedia.org/wiki/Delta_ISO) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Delta_ISO?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.