• Much better piece scanning: a new matching engine searches the whole picture, at every angle, using the piece's tabs too
• Far fewer "couldn't read the piece" errors; the photo is now processed only around the frame
• On Pro iPhones the camera switches to macro by itself when you get close; tap the screen to focus if it's blurry
• New hints: "Give a hint" narrows the area step by step, "Show the exact spot" places the piece itself on the picture at the right angle, and "Not here" moves to the next likely spot
• Puzzles of every size: 4000, 5000 or any piece count you type; the name and edge count are now optional, so setup is much faster
• All four corners of the puzzle picture can be adjusted independently
• Friends: edit your username, get a confirmation when you send a request, and share puzzle updates automatically
• Bug fixes and performance improvements