# xz

Published articles for xz.

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## Libreboot 20140811 release

DevFeed: [Libreboot 20140811 release](<https://devfeed.tech/articles/libreboot-20140811-release-32692.md>)

Original publisher: [Read original article](<https://libreboot.org/news/libreboot20140811.html>)

Author: Leah Rowe

Published: 2026-09-17T04:32:50.666044Z

Content type: release

Language: en

Sources: [News about Libreboot releases and development](<https://devfeed.tech/sources/news-about-libreboot-releases-and-development.md>)

Topics: [libreboot](<https://devfeed.tech/topics/libreboot.md>), [coreboot](<https://devfeed.tech/topics/coreboot.md>), [LVM](<https://devfeed.tech/topics/lvm.md>), [Compression](<https://devfeed.tech/topics/compression.md>)

Tags: [article](<https://devfeed.tech/tags/article.md>), [bios](<https://devfeed.tech/tags/bios.md>), [canoeboot](<https://devfeed.tech/tags/canoeboot.md>), [compression](<https://devfeed.tech/tags/compression.md>), [coreboot](<https://devfeed.tech/tags/coreboot.md>), [free-software](<https://devfeed.tech/tags/free-software.md>), [libre](<https://devfeed.tech/tags/libre.md>), [libreboot](<https://devfeed.tech/tags/libreboot.md>), [lvm](<https://devfeed.tech/tags/lvm.md>), [opensource](<https://devfeed.tech/tags/opensource.md>), [release](<https://devfeed.tech/tags/release.md>), [uefi](<https://devfeed.tech/tags/uefi.md>), [xz](<https://devfeed.tech/tags/xz.md>)

### AI overview

Libreboot 20140811 is the project's fifth beta release. The release notes describe corrections and changes to GRUB modules, documentation, ROM checking guidance, patch organization, bucts files, binary archives, and archive compression.

### Source excerpt

Article: Libreboot 20140811 release Web link: https://libreboot.org/news/libreboot20140811.html

## Ruby 4.0.7 Released

DevFeed: [Ruby 4.0.7 Released](<https://devfeed.tech/articles/ruby-4-0-7-released-26578.md>)

Original publisher: [Read original article](<https://www.ruby-lang.org/en/news/2026/09/15/ruby-4-0-7-released/>)

Published: 2026-09-15T00:25:58Z

Content type: release

Language: en

Sources: [Ruby-lang](<https://devfeed.tech/sources/ruby-lang.md>)

Topics: [Ruby](<https://devfeed.tech/topics/ruby.md>), [releases](<https://devfeed.tech/topics/releases.md>), [bug](<https://devfeed.tech/topics/bug.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [bugfixes](<https://devfeed.tech/tags/bugfixes.md>), [contributions](<https://devfeed.tech/tags/contributions.md>), [download](<https://devfeed.tech/tags/download.md>), [release](<https://devfeed.tech/tags/release.md>), [release-schedule](<https://devfeed.tech/tags/release-schedule.md>), [releases](<https://devfeed.tech/tags/releases.md>), [ruby](<https://devfeed.tech/tags/ruby.md>), [sha256](<https://devfeed.tech/tags/sha256.md>), [xz](<https://devfeed.tech/tags/xz.md>), [zip](<https://devfeed.tech/tags/zip.md>)

### AI overview

Ruby 4.0.7 has been released as a routine update containing bugfixes. The article says Ruby 4.0.8 is planned for November, with earlier release possible if a significant user-impacting change arises.

### Source excerpt

Ruby 4.0.7 has been released. This is a routine update that includes bugfixes. Please see the GitHub releases for further details. Release Schedule We intend to release the latest stable Ruby version (currently Ruby 4.0) every two months following the most recent release. Ruby 4.0.8 will be released in November. If a change arises that significantly affects users, a release may occur earlier than planned. Download https://cache.ruby-lang.org/pub/ruby/4.0/ruby-4.0.7.tar.gz SIZE: 23937964 SHA1: 730d4f8cebb60a1f5b556e7b58d86d0301772558 SHA256: 911ace20f90d068ca0e4dda6d0e4f0f81e52e52f2dd4f4004c721e253412e82d SHA512: ca6fb2df4b39967f1a92399ab70579216f2a87e600d127a616d4a81a3c92b25ebf35849502a2c12e2251d69e67eade3888af4a41b8844054d5c774f07c237c6d https://cache.ruby-lang.org/pub/ruby/4.0/ruby-4.0.7.tar.xz SIZE: 17995980 SHA1: 7d2307f975b1fef4e0ffe5cfe13067f993b5a4c2 SHA256: 47ef59413f7a4587ba6a6b78b14036eb5e36eec2ec0b90964801e88d56a3d375 SHA512: d1d345c25bff43aa86f536b22cd04746a7d3372077bf47ec75ef1820c0b43d0dbe3573dd5e5c55ee517796f46f0cdbd22c7506aebd06581241eefb5ffd9d2e5f https://cache.ruby-lang.org/pub/ruby/4.0/ruby-4.0.7.zip SIZE: 29248954 SHA1: 82b1bce8abb650e3080b96a0beff810b690dafa4 SHA256: c6f889c6dccd2625ae8d595bdee8e92afb3ddae3a1669bad67bb9f24d6af30ab SHA512: 5456ee1260921589cad5f0c57e84715e9c26b1f438a4c141157093c8e37e7e5d499a96c0ed35641f3cea1b741ecda2d72bfa3ce79fdbd5491784d9e6d181ac09 Release Comment Many committers, developers, and users who provided bug reports helped us make this release. Thanks for their contributions. Posted by k0kubun on 15 Sep 2026

## Ruby 4.0.4 Released

DevFeed: [Ruby 4.0.4 Released](<https://devfeed.tech/articles/ruby-4-0-4-released-19151.md>)

Original publisher: [Read original article](<https://www.ruby-lang.org/en/news/2026/05/11/ruby-4-0-4-released/>)

Published: 2026-05-11T21:41:38Z

Content type: release

Language: en

Sources: [Ruby-lang](<https://devfeed.tech/sources/ruby-lang.md>)

Topics: [Ruby](<https://devfeed.tech/topics/ruby.md>), [releases](<https://devfeed.tech/topics/releases.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [bugfixes](<https://devfeed.tech/tags/bugfixes.md>), [contributions](<https://devfeed.tech/tags/contributions.md>), [developers](<https://devfeed.tech/tags/developers.md>), [download](<https://devfeed.tech/tags/download.md>), [release](<https://devfeed.tech/tags/release.md>), [release-schedule](<https://devfeed.tech/tags/release-schedule.md>), [releases](<https://devfeed.tech/tags/releases.md>), [ruby](<https://devfeed.tech/tags/ruby.md>), [sha256](<https://devfeed.tech/tags/sha256.md>), [xz](<https://devfeed.tech/tags/xz.md>), [zip](<https://devfeed.tech/tags/zip.md>)

### AI overview

Ruby 4.0.4 has been released as a routine update containing bug fixes. The article provides download links, checksums, the planned Ruby 4.0 release schedule, and acknowledgments to contributors.

### Source excerpt

Ruby 4.0.4 has been released. This is a routine update that includes bugfixes. Please see the GitHub Releases for further details. Release Schedule We intend to release the latest stable Ruby version (currently Ruby 4.0) every two months following the most recent regular release. Ruby 4.0.5 will be released in July, 4.0.6 in September, and 4.0.7 in November. If a change arises that significantly affects users, a release may occur earlier than planned, and the subsequent schedule may shift accordingly. Download https://cache.ruby-lang.org/pub/ruby/4.0/ruby-4.0.4.tar.gz SIZE: 23816838 SHA1: 3633db75e6b4848b509ecccc64704d8f4467f068 SHA256: f35f6edfa3dabb3f723f9d0cf1906c6512ae77f4e412ab1e68cc6e91d230fa80 SHA512: b0cc9af75ee25628483a32ecd5ea6477d637ee3c75795f411bc4ebde7d86ab754fddf96385cfc5955b9dbd016418cbd7178c82dad7876b2b7119238f5159ed3a https://cache.ruby-lang.org/pub/ruby/4.0/ruby-4.0.4.tar.xz SIZE: 17899740 SHA1: 9e070a8a78e6faa35382360b47526042657b236d SHA256: 6ff9d2d6e75f5a6f997222ecc45f79209d663737eceb3689d1f42ab952673fb7 SHA512: cccc041379fd4e46a736a5c10ccf81627766a7175113c34754797b915bebcd0ce821d9cd7b42cc616b0a1f9ee38eee5ab7560c1840fa6672819c293e498a3f6f https://cache.ruby-lang.org/pub/ruby/4.0/ruby-4.0.4.zip SIZE: 29122429 SHA1: 5edc7ce0adc2851a355673a5bb42b75efd4cf2b2 SHA256: 508bc83baed022c20671d69dd264e6783d61b89767b5d387c0f8efea00b62219 SHA512: b5db7ba616c56bdac9a61362d88d6350c8a8b59b5d812c1395476db73cb60fb403994e0bc3285aa2f57acbef3e30bcfce4bee4c5c8433b39d8f0a7c6dbb9bd29 Release Comment Many committers, developers, and users who provided bug reports helped us make this release. Thanks for their contributions. Posted by k0kubun on 11 May 2026

## Limiting Failure Opportunities in Software Systems

DevFeed: [Limiting Failure Opportunities in Software Systems](<https://devfeed.tech/articles/bad-luck-tickets-32240.md>)

Original publisher: [Read original article](<https://publicobject.com/2024/11/13/bad-luck-tickets/>)

Author: Jesse Wilson

Published: 2024-11-13T05:08:26Z

Content type: opinion

Language: en

Sources: [Public Object](<https://devfeed.tech/sources/public-object.md>)

Topics: [systems](<https://devfeed.tech/topics/systems.md>), [Back end](<https://devfeed.tech/topics/backend.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [Latency](<https://devfeed.tech/topics/latency.md>), [xz](<https://devfeed.tech/topics/xz.md>)

Tags: [backend](<https://devfeed.tech/tags/backend.md>), [database](<https://devfeed.tech/tags/database.md>), [latency](<https://devfeed.tech/tags/latency.md>), [systems](<https://devfeed.tech/tags/systems.md>), [xz](<https://devfeed.tech/tags/xz.md>)

### AI overview

This commentary introduces "bad luck tickets," a way to think about the number of opportunities for failure in a system. It applies the idea to team availability, information sharing, open-source dependencies, supply-chain risk, and fan-out database queries, including how parallel queries inherit the maximum latency of their individual shard queries.

### Source excerpt

My son's swim meet is coming up. If he's healthy, he'll compete. My daughter's hockey team has a game coming up. League rules say they must forfeit if they have fewer than 10 players. There's only 10 girls on the roster so they need everyone

## Mitigating software supply chain risks through faster vulnerability response and verified software images

DevFeed: [Mitigating software supply chain risks through faster vulnerability response and verified software images](<https://devfeed.tech/articles/if-xz-s-backdoors-are-inevitable-how-do-we-stay-secure-the-answer-is-move-faster-13100.md>)

Original publisher: [Read original article](<https://www.chainguard.dev/unchained/if-xzs-backdoors-are-inevitable-how-do-we-stay-secure-the-answer-is-move-faster>)

Published: 2024-04-16T00:00:00Z

Content type: article

Language: en

Sources: [Chainguard: Unchained](<https://devfeed.tech/sources/chainguard-unchained.md>)

Topics: [supply-chain-security](<https://devfeed.tech/topics/supply-chain-security.md>), [Vulnerabilities](<https://devfeed.tech/topics/vulnerabilities.md>), [open-source-security](<https://devfeed.tech/topics/open-source-security.md>), [chainguard images](<https://devfeed.tech/topics/chainguard-images.md>), [supply chain attacks](<https://devfeed.tech/topics/supply-chain-attacks.md>)

Tags: [auditability](<https://devfeed.tech/tags/auditability.md>), [chainguard-images](<https://devfeed.tech/tags/chainguard-images.md>), [cve-2024-3094](<https://devfeed.tech/tags/cve-2024-3094.md>), [golang](<https://devfeed.tech/tags/golang.md>), [liblzma](<https://devfeed.tech/tags/liblzma.md>), [sbom](<https://devfeed.tech/tags/sbom.md>), [software-bill-of-materials](<https://devfeed.tech/tags/software-bill-of-materials.md>), [software-supply-chain](<https://devfeed.tech/tags/software-supply-chain.md>), [supply-chain-attacks](<https://devfeed.tech/tags/supply-chain-attacks.md>), [supply-chain-integrity](<https://devfeed.tech/tags/supply-chain-integrity.md>), [supply-chain-security](<https://devfeed.tech/tags/supply-chain-security.md>), [vulnerabilities](<https://devfeed.tech/tags/vulnerabilities.md>), [xz](<https://devfeed.tech/tags/xz.md>), [xz-backdoor](<https://devfeed.tech/tags/xz-backdoor.md>), [zero-trust](<https://devfeed.tech/tags/zero-trust.md>)

### AI overview

The article discusses the xz vulnerability, the risk of future software supply chain attacks, and the importance of rapid patch propagation and software inventory auditability. It presents Chainguard Images as a continuously verified and auditable approach to mitigating these risks.

### Source excerpt

Software backdoors are a threat. Learn how to mitigate supply chain security risks by responding faster to vulnerabilities like the xz flaw.

## Nix Weekly Recap: 2024-03-31

DevFeed: [Nix Weekly Recap: 2024-03-31](<https://devfeed.tech/articles/nix-weekly-recap-2024-03-31-34712.md>)

Original publisher: [Read original article](<https://nixpkgs.news/archive/2024-03-31/>)

Published: 2024-03-31T00:00:00Z

Content type: article

Language: en

Sources: [nixpkgs.news](<https://devfeed.tech/sources/nixpkgs-news.md>)

Topics: [Nix](<https://devfeed.tech/topics/nix.md>), [Security](<https://devfeed.tech/topics/security.md>), [backdoor](<https://devfeed.tech/topics/backdoor.md>), [CVE 2024 3094](<https://devfeed.tech/topics/cve-2024-3094.md>), [liblzma](<https://devfeed.tech/topics/liblzma.md>), [xz](<https://devfeed.tech/topics/xz.md>), [Documentation](<https://devfeed.tech/topics/documentation.md>), [Vulnerabilities](<https://devfeed.tech/topics/vulnerabilities.md>), [Python](<https://devfeed.tech/topics/python.md>), [Repl.it](<https://devfeed.tech/topics/replit.md>)

Tags: [backdoor](<https://devfeed.tech/tags/backdoor.md>), [cve-2024-3094](<https://devfeed.tech/tags/cve-2024-3094.md>), [documentation](<https://devfeed.tech/tags/documentation.md>), [github](<https://devfeed.tech/tags/github.md>), [liblzma](<https://devfeed.tech/tags/liblzma.md>), [python](<https://devfeed.tech/tags/python.md>), [recap](<https://devfeed.tech/tags/recap.md>), [security](<https://devfeed.tech/tags/security.md>), [weekly](<https://devfeed.tech/tags/weekly.md>), [xz](<https://devfeed.tech/tags/xz.md>)

### AI overview

A weekly recap of Nix community and NixPkgs activity, including the response to the critical xz/liblzma backdoor vulnerability CVE-2024-3094, release staffing, an RFC, new tools, testing, documentation, and a Python-environment update.

### Source excerpt

Weekly recap of the announcements and activity in the Nix community and on the NixPkgs package repository.

## Chainguard's response to CVE-2024-3094, aka the backdoor in xz library

DevFeed: [Chainguard's response to CVE-2024-3094, aka the backdoor in xz library](<https://devfeed.tech/articles/chainguard-s-response-to-cve-2024-3094-aka-the-backdoor-in-xz-library-12995.md>)

Original publisher: [Read original article](<https://www.chainguard.dev/unchained/chainguards-response-to-cve-2024-3094-aka-the-backdoor-in-xz-library>)

Published: 2024-03-29T00:00:00Z

Content type: opinion

Language: en

Sources: [Chainguard: Unchained](<https://devfeed.tech/sources/chainguard-unchained.md>)

Topics: [chainguard](<https://devfeed.tech/topics/chainguard.md>), [vulnerability](<https://devfeed.tech/topics/vulnerability.md>), [chainguard images](<https://devfeed.tech/topics/chainguard-images.md>), [backdoor](<https://devfeed.tech/topics/backdoor.md>), [OpenSSH](<https://devfeed.tech/topics/openssh.md>), [Compression](<https://devfeed.tech/topics/compression.md>), [Linux](<https://devfeed.tech/topics/linux.md>)

Tags: [backdoor](<https://devfeed.tech/tags/backdoor.md>), [chainguard](<https://devfeed.tech/tags/chainguard.md>), [chainguard-images](<https://devfeed.tech/tags/chainguard-images.md>), [compression](<https://devfeed.tech/tags/compression.md>), [customer-trust](<https://devfeed.tech/tags/customer-trust.md>), [cve](<https://devfeed.tech/tags/cve.md>), [cve-2024-3094](<https://devfeed.tech/tags/cve-2024-3094.md>), [liblzma](<https://devfeed.tech/tags/liblzma.md>), [linux](<https://devfeed.tech/tags/linux.md>), [malware](<https://devfeed.tech/tags/malware.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [openssh](<https://devfeed.tech/tags/openssh.md>), [secure-images](<https://devfeed.tech/tags/secure-images.md>), [security](<https://devfeed.tech/tags/security.md>), [xz](<https://devfeed.tech/tags/xz.md>), [xz-library](<https://devfeed.tech/tags/xz-library.md>)

### AI overview

Chainguard describes its response to CVE-2024-3094, a backdoor introduced into the upstream xz/liblzma project. It says its Images were not affected, while impacted packages were withdrawn, revoked, and rebuilt with unaffected liblzma versions.

### Source excerpt

Chainguard effectively addresses CVE-2024-3094 in xz library, showcasing quick action to secure images and uphold customer trust.

## logrotate: kompresja logów xz

DevFeed: [logrotate: kompresja logów xz](<https://devfeed.tech/articles/logrotate-kompresja-logow-xz-27571.md>)

Original publisher: [Read original article](<https://gagor.pro/2013/07/logrotate-kompresja-logow-xz/>)

Author: Tom

Published: 2013-07-29T00:00:00Z

Content type: tutorial

Language: pl

Sources: [Tomasz Gągor](<https://devfeed.tech/sources/tomasz-gagor.md>)

Topics: [xz](<https://devfeed.tech/topics/xz.md>)

Tags: [linux](<https://devfeed.tech/tags/linux.md>), [xz](<https://devfeed.tech/tags/xz.md>)

### AI overview

This tutorial explains how to configure logrotate to compress logs with xz by setting xz and unxz as the compression commands, using the .xz extension, and optionally adding compression options.

### Source excerpt

Narzędzia xz-utils dostępne w nowszych systemach korzystają z mocniejszych algorytmów kompresji (jakaś odmiana LZMA, coś w stylu 7zip'a) przy zachowaniu kompatybilności składni poleceń z gzip'em/bzip'em - da się je zatem łatwo zintegrować w obecnych systemach. Ja chciałem wykorzystać xz do kompresji logów, które bywają przydatne ale przez większość czasy tylko zajmują miejsce :simple_smile: W /etc/logrotate.conf dopisujemy: compresscmd /usr/bin/xz uncompresscmd /usr/bin/unxz compressext .xz compressoptions -9T2 compressoptions można nie ustawiać bo domyślnie ma wartość -9 (czyli kompresuj na maxa), mój dodatek (czyli -T2) użyje dwóch wątków procesora gdy już ten mechanizm zostanie zimplementowany (bo na razie nie jest) :simple_smile: