do you discard down to seven if it isnt your turn?

[Knight]

if it's the end of other player's turn (so it isn't your turn yet) and you are holding more than 7 cards, do you also discard down to 7?

[Arix]

No. You only discard down to 7 at the end of your own turn. Any other time, including at the end of other players' turns, you can hold onto any number of cards.