In my day you would fail your Validation or LCE if you used the phrase " released on contact"
This guards against the possibility of a pilot calling the Approach Unit on his second box for whatever reason ( eg wx info , Runway etc ) and then being given control instructions prematurely.
We had all this out with SRG years ago.
Releases are at a time , place or level and nothing else as far as I was concerned but I guess we can now add following an electronic handover.