   as_restore.cpp exception in 2.16.1
  In my env. , I load the pre-compiled bytecodes, binding and execute it.But after updating, it raise an exception when bytecode loading.I couldn't fingure out what the error is.Maybe I need wirte some code to reproduce the error.just let you know.Thanks!   
  Did you recreate the pre-compiled bytecode after updating the library? If you didn't then that is very likely the cause of the exception.