Ubuntu Manpage: guestfs-release-notes - libguestfs Release Notes

Provided by: libguestfs0t64_1.52.0-5ubuntu3_amd64

NAME

       guestfs-release-notes - libguestfs Release Notes

RELEASE NOTES FOR LIBGUESTFS 1.52

These are the release notes for libguestfs stable release 1.52. This describes the major
changes since 1.50.

Libguestfs 1.52.0 was released on 5 January 2024.

Language bindings
The Python bindings now use "bytes" (instead of "str") for the event callback message,
since it may contain arbitrary 8 bit data (thanks Yonatan Shtarkman).

Also in the Python bindings, fix a rare crash, and avoid memory leaks in event callbacks
(thanks Yonatan Shtarkman, Laszlo Ersek, Eric Blake).

Support for OCaml 5, and OCaml ≥ 4.07 is now the minimum (thanks Guillaume Munch-
Maccagnoni, Jerry James, Josh Berdine, Jürgen Hötzel, Vincent Laviron).

The OCaml bindings now release the runtime lock around calls to "guestfs_close", since
that call might be long-running (for example it might have to shut down the appliance and
synch disks).

Inspection
Support OpencloudOS (cunshunxia@tencent).

API
SELinux relabelling now runs in parallel, meaning it's a lot quicker (Andrey Drobyshev).

Add support for lzma and zstd compression methods in tar APIs (like "guestfs_tar_in")
(Zixun LI).

"guestfs_pvs_full" previously didn't always return the correct device names. This has now
been fixed.

"guestfs_btrfs_filesystem_balance" fixed so it now works with more modern btrfs tools
(Jürgen Hötzel).

Tools
The guestfish(1) --key option now recognizes LVM names like
/dev/mapper/rhel_bootp--73--75--123-root (Laszlo Ersek).

guestfish --key option also supports a new --key all:... selector to try the same key on
all devices.

In guestmount(1) avoid calling fclose(NULL) on error paths, which might have caused a
crash on some platforms.

Build changes
The "RELEASES" file (which listed release dates) has been removed and replaced with a
simple "RELEASE_DATE" macro in ./configure. This should simplify builds.

Optionally passt(1) may be used for networking (Laszlo Ersek).

dhcpcd(8) is now used in preference to dh-client on Red Hat platforms.

Old Ruby "MiniTest" and "Test::Unit" dependencies replaced with new "Minitest".

Fix compatibility issues with libxml2 2.12.

Internals
On x86-64 we now use the more modern q35 machine type when running the appliance. This
should perform slightly better and has more development attention from the qemu community.
The change should be invisible to libguestfs users.

Fix a segmentation fault when "TERM" environment variable was set to "dumb" (Daisuke
HATAYAMA).

Avoid a warning on modern Fedora which does not have /selinux (Andrey Drobyshev).

Fix build on OpenSUSE LEAP 15 or other distros with a file(1) command which did not
understand the -S option (thanks Olaf Hering).

Bugs fixed
https://bugzilla.redhat.com/2247057
Remove dependency on dhcp-client in libguestfs

https://bugzilla.redhat.com/2184967
RFE: support passt for appliance networking, as QEMU userspace networking backend

https://bugzilla.redhat.com/2168578
use q35 machine type for libguestfs appliance

https://bugzilla.redhat.com/1910039
virt-dib doesn't work with newer diskimage-builder version on RHEL8

AUTHORS

       Andrey Drobyshev
       cunshunxia
       Emilio Herrera
       grimst
       HATAYAMA Daisuke
       Jan Kuparinen
       Jürgen Hötzel
       Laszlo Ersek
       Pavel Borecki
       Richard W.M. Jones
       Temuri Doghonadze
       Tian Shixiong
       Yuri Chornoivan
       Zixun LI

COPYRIGHT

       Copyright (C) 2009-2024 Red Hat Inc.

LICENSE

       This program is free software; you can redistribute it and/or modify it under the terms of
       the GNU General Public License as published by the Free Software Foundation; either
       version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
       without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
       See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program;
       if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
       Boston, MA 02110-1301 USA.

BUGS