pub const ABI_EPOCH: u32 = 2;Expand description
Hand-bumped ABI epoch. Sizes and alignments can’t see every
layout change: Event::port landed in former padding, so
event_size stayed the same while a stale shell would read
uninitialized padding as the port. Bump this when any
boundary-crossing type changes layout invisibly to the size /
align fields below. When AbiCanary itself gains or loses a
field, bump the export symbol version instead
(truce_abi_canary_vN) - the canary crosses the boundary by
value, so two different canary layouts must never call each
other.
Epoch 2: Event grew port: u8 in former padding (multi-port
MIDI).