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docs: Update release notes for 1.48

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Updates: commit 2f4fb09de3
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Richard W.M. Jones
2022-03-10 10:14:06 +00:00
parent 4256737227
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docs/guestfs-release-notes-1.48.pod
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@@ -4,6 +4,40 @@ guestfs-release-notes - libguestfs Release Notes
=head1 RELEASE NOTES FOR LIBGUESTFS 1.48
=head2 Some features removed
The following little used, experimental or unsafe features have been
removed:
"Libguestfs live" was an experimental feature that allowed you (in
theory) to connect to an existing instance of the libguestfs daemon in
a running guest. If you want to do this we recommend installing
qemu-guest-agent in the guest instead and using the APIs provided by
it. The related C<unix:> backend has been removed. The
L<guestfish(1)> and L<guestmount(1)> I<--live> option now prints an
error.
The User-mode Linux (C<uml>) backend has been removed. It was an
alternate hypervisor that could be used instead of qemu. It had many
limitations including lack of network support, and lack of qemu native
features like qcow2 or network-backed disks. In addition it was
slower than KVM and particular features like bulk upload/download were
painfully slow. Also the UML feature of Linux that it was based on
often does not work.
The 9pfs APIs C<guestfs_list_9p> and C<guestfs_mount_9p> have been
deprecated and now return errors. This was related to an experimental
feature for passing through host filesystems to the appliance. You
had to hand-hack the qemu command line for this to work and it did not
fit the libguestfs model very well.
C<guestfs_add_drive> no longer supports hotplugging (adding a drive
after launch), and C<guestfs_remove_drive> has been deprecated and now
returns an error. Hotplugging was an unsuccessful feature which was
complicated to implement and maintain, and was slow and insecure. It
also only worked with the non-default libvirt backend, and was never
implemented in the default "direct" backend.
=head2 Language bindings
Fix allocation and deallocation of string lists in golang bindings
@@ -35,6 +69,11 @@ No new APIs were added in libguestfs 1.48.
=head3 Other API changes
C<guestfs_list_9p> and C<guestfs_mount_9p> are deprecated and now
return errors.
C<guestfs_remove_drive> has been deprecated and now returns an error.
In C<guestfs_xfs_admin> the C<lazycounter> parameter is deprecated
because it is no longer supported in recent versions of XFS.