old_contents: class NasmPackage (Package):
  	def __init__ (self):
  		Package.__init__ (self, 'nasm', '2.10.07', sources = [
  			'http://www.nasm.us/pub/nasm/releasebuilds/2.10.07/nasm-%{version}.tar.xz'
  		])
  
  NasmPackage ()
  
new_contents: class NasmPackage (Package):
  	def __init__ (self):
  		Package.__init__ (self, 'nasm', '2.11.08', sources = [
  			'http://www.nasm.us/pub/nasm/releasebuilds/%{version}/nasm-%{version}.tar.xz'
  		])
  
  NasmPackage ()
  
subject: Update nasm to 2.11.08