I've got a ton of these messages logged since last update:
Jan 29 13:06:09 localhost kernel: ACPI Error (psargs-0351): [PBST]Namespace lookup
failure, AE_NOT_FOUND
Jan 29 13:06:09 localhost kernel: ACPI Error (psparse-0517): Method parse/execution failed
[\_SB_.PCI0.LPC0.BAT1._BST] (N
ode ffff810037e24508), AE_NOT_FOUND
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