From the most recent email sent a few minutes ago:
Hello!
We are pleased to announce that a brand new version of London Control (1.5) is now available!
Along with other changes, a significant enhancement is an upgrade to speech recognition, which has been achieved through the assistance of a third party who worked with us over the summer months. Although this has come at a cost, we are not passing these charges on to users.
We have successfully upgraded a part of the sim that had needed improvement for a long time, and we hope you will see a big difference with speech interaction.
We would welcome any feedback once you have had chance to run the new version, and thank you for continuing to support London Control - the most authentic air traffic control simulator of its kind.
Regards,
London Control