Valve has announced that they've sorted out various issues with their Steam Deck supply chain, so they will get through reservations much faster than expected now. This means a lot of people will be bumped up the list a bit getting their Steam Deck purchase email a lot sooner.
Everyone who has an existing reservation will get their purchase email this year. So many who were in "Q4 or later" were bumped up to the Q3 window and Valve said everyone else is now sitting properly inside Q4.
Any new reservations will be in the Q4 list but if those fill up, naturally they spill over into next year. Either way it's good news, as Valve can get Steam Deck units shipping a lot sooner than before.
We don't know exactly what has changed, as Valve only said that "the supply chain shortfalls that affect Steam Deck are gradually clearing up, and we're continuing to ramp production, so we're able to produce more Decks faster than ever before"
Valve also said to expect "more news soon".
This is awesome news, I'm excited to see more of you getting your units. Every single device shipping is a new potential Linux gamer!