Function sample_version_matches 

pub fn sample_version_matches(s: &TreeSample) -> bool

True when a parsed sample carries the current record-layout version.

The daemon and the BPF object compile from the same intf.h, so a mismatch is either an out-of-tree producer or a stale build; the check turns that into a loud drop at the parse instead of a silent misread of the feature fields.