• Added: Lua 5.3 architecture.
• Added: Data card, provides hashing algorithms and inflate/deflate (thanks Kubuxu).
• Added: 3D prints can now be configured to not be collidable, per state, increases print cost though.
• Added: Using an empty string as the texture for a 3D print shape will make it transparent.
• Added: Callback to AE2 interface driver to allow storing items in database upgrade.
• Added: ExtraCells integration (thanks DrummerMC).
• Added: Integration with BC7 Electronic Library to allow saving/loading EEPROMs (requires BC 7.0.9).
• Fixed: Interaction of robots and drones with trapped double-chests.
• Fixed: Neighbors of redstone emitting prints not updating in some scenarios.
• Fixed: Incorrect coordinates in mouse scroll event in scaled GUIs.
• Fixed: Off-by-one in os.date().
• Fixed: Command block driver now properly returns numeric value from executeCommand.
• Fixed: Potential NPE when initializing Microcontrollers.
• Fixed: Updated Project Red screwdiver implementation in Scrench.
• Fixed: Display position of hover boots while sneaking.
• Fixed: Drones producing step sounds when flying too low.
• Fixed: Behavior of /dev/null in robots.
• Fixed: A bunch of typos in the documentation.

To use the Lua 5.3 architecture, shift-rightclick a CPU while holding it in your hand to cycle through available architectures until it says Lua 5.3 in the chat and/or expanded tooltip of the CPU.

If you've been playing with a 1.5.13 dev-build (i.e. one you got from Jenkins), you'll have to manually set the option enableLua53 to true in your config, because it originally wasn't until I did some stability testing.