updated comment

Author: tannalynn

lib/new_relic/agent/instrumentation/excon.rb

@@ -17,7 +17,7 @@
   # so we could safely subscribe and not be clobbered by future subscribers,
   # but alas, it does not yet.
 
-  # TODO: MAJOR VERSION - update min version to 0.56.0
+  # We support and test 0.56.0 and above, but the instrumentation can still be installed and used with earlier versions.
   EXCON_MIN_VERSION = Gem::Version.new('0.19.0')
 
   depends_on do