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Version 3.30.1.2
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This release by default *removes* the new feature that was added in 3.29.0 to
use SuspendAndHibernate when available. You can re-enable the feature using the
"experimental_suspend_then_hibernate" meson option again.

There are two major issues with the new feature in the current form, and fixing
it will require more changes that are not feasible in the stable release cycle.

The two main issues are:
 * Hibernation is often not properly supported. The reasons range from it being
   simply impossible (secure boot), to driver and firmware issues when resuming
   and also distribution issues where the system is not correctly set-up and
   we cannot detect the issue.
 * It was missed that the support added into g-s-d is incomplete and therefore
   creates an inconsistent user experience. In particular, we have four major
   methods to suspend the machine, but only two are affected:
    - hardware power button: will use suspend-then-hibernate if enabled and available
    - idle suspend: will use suspend-then-hibernate if enabled and available
    - suspend in gnome-shell: always suspends
    - lid closing: always suspends (systemd)

Also relevant in this discussion is the proposed change in upstream systemd to
allow disabling hibernation even if it is detected to work:
  https://github.com/systemd/systemd/pull/10262