Please note that you'll have to recompile any existing scripts due to these API changes! * LLTimers and LLEvents added, global function event handlers like touch_start() and friends no longer do anything. * All ll.SomeFunction() functions that accept or return an index into some other object will be 1-indexed unless you're using llcompat.SomeFunction() * Things that are boolean-like will be returned as true boolean s, including in llGetLinkPrimitiveParams() retvals * The memory accounting is reworked entirely to not require invoking the garbage collector to figure out how much memory a script is logically "using". Instead we have code that walks your script and picks up all the things it still has strong references to, then calculates a cost for the data you're using based on our updated memory cost model * LSL compile errors actually return something now (format isn't 100% correct) * uuid() will return nil if passed a non-UUID value in SLua * link_message() has been updated to pass id as a string since it's most frequently used to pass string data rather than a UUID. * In the about land floater script memory usage is reported by how much memory the script is using rather than it's memory limit. The value is rounded up to the nearest 4kb increment to prevent leaking too much data about what the script is doing. The window that shows memory for scripts attached to your avatar is still bugged, unfortunately. * Fixed a simulator crash when serializing script state that's been around since the beginning, finally tracked it down * ll.GetTime() is higher resolution enough that you never really need ll.ResetTime() anymore. It's accurate to the microsecond for 100 years. * os.clock() is fixed to be reliable across sim restarts, it is essentially a higher-precision ll.GetTime() with 100 microsecodns precision, but takes twice as long to run than ll.GetTime() . Mostly useful for benchmarking. * UUIDs have a .bytes property, and can be constructed from a buffer instance with at least 16 bytes in it * Updated to Luau 0.698 * Things are faster? * Probably other things I'm forgetting