I just had to roll back to 24.4.1 from the automatic upgrade to 24.5. (running the most recent driver for the Intuos). The hand tool (using the space bar or when accessing the tool directly) won't release when letting up on the space bar or lifting the pen. Moving the pen fully away from the tablet didn't help. The behavior is as if you have never lifted the pen off the tablet. Right click or double click didn't work either. Only switching to another tool via the keyboard and then back to the hand tool with each pan worked.
The same refusal to release the tool applied to the Move, Crop, Free Transform, Transform, making the upgrade impossible to use. After two hours of troubleshooting, I reverted to 24.4.1 and the tool behaviors returned to fully functioning as expected.
I hope this bug is fixed soon or that if it's a Wacom driver thing, that Adobe works with Wacom so that they release a new driver. Until it's resolved, I can't upgrade.