I was surprised to find this tune not listed here anywhere.

My version changes some of the chords. The style is Latin-Swing. On the head the A sections are Latin and the B sections are swing, while the solos all swing.

The form is unusual: A-B on the first head and solos, A-Coda on the last head.

The lead sheet can be found in the Hal Leonard publications Ultimate Jazz Book, Real Book Volume V, and Real Vocal Book Volume III.

Charles Aznavour sings it in English at https://www.youtube.com/watch?v=WEjoVg07rIE.
He sings it in French as a waltz at https://www.youtube.com/watch?v=VYb7fXOyKpg.
Blossom Dearie has a nice performance in half-time at https://www.youtube.com/watch?v=8GFcGiWBLo8.

Yesterday When I Was Young (Hier Encore)-Rev JE - Charles Aznavour

Cheers,
Jer