Thank you for your message.
Of course, we understand this kind of concern and apologize for keeping everyone waiting. Although we cannot provide any specific ETA on the release of Host/Agent for Mac/Linux, it will most probably become available within the current major version of Remote Utilities, i.e. version 7 - for a reference, the previous major version 6 was around for almost 7 years.
In addition, please note that according to our Upgrade Policy
all customers who've purchased the license within a year prior to a major version release are eligible for a free license upgrade.
Please let us know if you have more questions.