El registro de cambios (changelog) contiene un listado de cambios, nuevas funcionalidades, solución de bugs y vulnerabilidades, etc. aplicadas a un determinado paquete. A través de rpm podemos consultar el changelog de un paquete, para ello se utiliza la opción de query -q y --changelog. Ejemplo:
$ rpm -q --changelog kernel | more * Sun Nov 10 2013 Rafael Aquini <aquini@redhat.com> [2.6.32-431.el6] - [md] Disabling of TRIM on RAID5 for RHEL6.5 was too aggressive (Jes Sorensen) [1028426] * Tue Nov 05 2013 Rafael Aquini <aquini@redhat.com> [2.6.32-430.el6] - [x86] Revert "efi: be more paranoid about available space when creating variables" (Rafael Aquini) [1012370 1023173] - [x86] Revert "efivars: firmware bug workarounds should be in platform code" (Rafael Aquini) [1012370 1023173] - [x86] Revert "efi: Export efi_query_variable_store() for efivars.ko" (Rafael Aquini) [1012370 1023173] - [x86] Revert "efi: Check max_size only if it is non-zero" (Rafael Aquini) [1012370 1023173] - [x86] Revert "efi: Distinguish between "remaining space" and actually used space" (Rafael Aquini) [1012370 1023173] - [x86] Revert "efi: Implement efi_no_storage_paranoia parameter" (Rafael Aquini) [1012370 1023173] - [x86] Revert "Modify UEFI anti-bricking code" (Rafael Aquini) [1012370 1023173] - [x86] Revert "efi: Fix dummy variable buffer allocation" (Rafael Aquini) [1012370 1023173] * Sat Nov 02 2013 Rafael Aquini <aquini@redhat.com> [2.6.32-429.el6] - [fs] revert xfs: prevent deadlock trying to cover an active log (Eric Sandeen) [1014867] * Wed Oct 30 2013 Rafael Aquini <aquini@redhat.com> [2.6.32-428.el6] - [fs] Revert "vfs: allow umount to handle mountpoints without revalidating them" (Rafael Aquini) [1024607] - [fs] Revert "vfs: massage umount_lookup_last() a bit to reduce nesting" (Rafael Aquini) [1024607] - [fs] Revert "vfs: rename user_path_umountat() to user_path_mountpoint_at()" (Rafael Aquini) [1024607] - [fs] Revert "vfs: introduce kern_path_mountpoint()" (Rafael Aquini) [1024607] - [fs] Revert "autofs4: fix device ioctl mount lookup" (Rafael Aquini) [1024607] [...]
Si queremos consultarlo para un paquete que todavía no hemos instalado, lo podemos hacer con yum, utilizando el añadido yum-plugin-changelog:
# yum install yum-plugin-changelog [...] ---> Package yum-plugin-changelog.noarch 0:1.1.31-45.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ==================================================================================================================================================================================================================================================================================================================== Package Arch Version Repository Size ==================================================================================================================================================================================================================================================================================================================== Installing: yum-plugin-changelog noarch 1.1.31-45.el7 rhel-7-server-rpms 33 k Transaction Summary ==================================================================================================================================================================================================================================================================================================================== Install 1 Package Total download size: 33 k Installed size: 40 k [...] Transaction test succeeded Running transaction Installing : yum-plugin-changelog-1.1.31-45.el7.noarch 1/1 Verifying : yum-plugin-changelog-1.1.31-45.el7.noarch 1/1 Installed: yum-plugin-changelog.noarch 0:1.1.31-45.el7 Complete!
Una vez, instalado, la sintaxis es la siguiente:
[root@ingsaltojc ~]# yum changelog openssh Loaded plugins: changelog, langpacks, product-id, search-disabled-repos, subscription-manager Listing all changelogs ==================== Installed Packages ==================== openssh-6.6.1p1-22.el7.x86_64 installed * Fri Sep 25 14:00:00 2015 Jakub Jelen <jjelen@redhat.com> 6.6.1p1-22 + 0.9.3-9 - Use the correct constant for glob limits (#1160377) * Thu Sep 24 14:00:00 2015 Jakub Jelen <jjelen@redhat.com> 6.6.1p1-21 + 0.9.3-9 - Extend memory limit for remote glob in sftp acc. to stat limit (#1160377) * Thu Sep 24 14:00:00 2015 Jakub Jelen <jjelen@redhat.com> 6.6.1p1-20 + 0.9.3-9 - Fix vulnerabilities published with openssh-7.0 (#1265807) - Privilege separation weakness related to PAM support - Use-after-free bug related to PAM support * Thu Sep 24 14:00:00 2015 Jakub Jelen <jjelen@redhat.com> 6.6.1p1-19 + 0.9.3-9 - Increase limit of files for glob match in sftp to 8192 (#1160377) * Tue Aug 18 14:00:00 2015 Jakub Jelen <jjelen@redhat.com> 6.6.1p1-18 + 0.9.3-9 - Add GSSAPIKexAlgorithms option for server and client application (#1253062) * Wed Jul 29 14:00:00 2015 Jakub Jelen <jjelen@redhat.com> 6.6.1p1-17 + 0.9.3-9 - Security fixes released with openssh-6.9 (CVE-2015-5352) (#1247864) - XSECURITY restrictions bypass under certain conditions in ssh(1) (#1238231) - weakness of agent locking (ssh-add -x) to password guessing (#1238238) * Mon Jul 27 14:00:00 2015 Jakub Jelen <jjelen@redhat.com> 6.6.1p1-16 + 0.9.3-9 - only query each keyboard-interactive device once (CVE-2015-5600) (#1245971)
También se pueden establecer filtros de búsqueda, como un rango de fechas concreto. Ejemplos extraídos de la página man:
# yum changelog 2008-Jan yum\* Listing changelogs since: 2008-01-18 yum-versionlock-1.1.11-1.fc8.noarch installed * Wed Jan 30 17:00:00 2008 Tim Lauridsen <timlau@fedoraproject.org> - mark as 1.1.11 changelog stats. 33 pkgs, 12 source pkgs, 1 changelog # yum update ktechlab --changelog Loading "changelog" plugin Setting up Update Process Setting up repositories [..] Resolving Dependencies [...] Changes in packages about to be updated: ktechlab - 0.3-6.i386 * Wed Nov 22 23:00:00 2006 Chitlesh Goorah - 0.3-6 - Rebuilt due to new gpsim-devel release