Scott Moore wrote:

Electric attitude. Vacuum pumps are going away.

Or electronic AI (ie. solid state; not a gyro).

My club's fleet all have what used to be the precise flight standby vacuum.
It's not bad, but I'd prefer something else.

One important consideration is preflight. Be sure that you follow the
procedure, lest you find yourself in the clouds with no backup and no
awareness that you've no backup.

- Andrew