The author has just added a project for RAD Studio XE7 and HgBDS Mercurial Integration for RAD Studio XE7 is finally ready for use. Thank you for your patience.
Embarcadero just launched RAD Studio XE7 but I have not ordered the recharge yet. So XE7 support in HgBDS Mercurial Integration is not available for a while. If you need it very soon, please buy the current preview product on Sellfy and request a free update.