Link preview camera to player movement

docs/PORTING.md

@@ -306,6 +306,12 @@ screens while Explore mode is active. Movement, jump, and sneak now move the
 remote camera even though Minecraft suspends normal gameplay key states while
 a GUI is open.
 
+Version 0.2.16.8 links Explore mode to real player movement in the current
+dimension. Entering Explore anchors the source player and destination camera;
+walking, jumping, falling, or being moved shifts the snapshot camera by the
+same displacement while the book remains open and normal collision still
+applies.
+
 The preview code is separated behind a renderer interface and uses an isolated
 Ponder level populated from server-authoritative destination snapshots.