The applications: "MacTCP 2.0.4 to 2.0.6 Patch" and "MacTCP Admin 2.0.6 Patch" are ResCompare resource patching applications. Applying the appropriate patch to a
COPY OF YOUR ORIGINAL ("virgin") MacTCP or MacTCP Admin control panel will upgrade
your copy to version 2.0.6.
What Can Be Upgraded?
====================
All licensed copies of MacTCP 2.0.4 can be upgraded. For users of earlier 2.x versions
(2.0 and 2.0.2. those must first be updated to version 2.0.4 before updating to version 2.0.6)
What Cannot Be Upgraded?
=======================
Any other version of MacTCP 2.x (i.e, 2.0.1... 2.0.3... 2.0.5…), any MacTCP alpha, beta, or development version, or any version of MacTCP v1.x may not be upgraded.
What's The Difference?
====================
The changes between MacTCP 2.0.4 and MacTCP 2.0.6 are described in the Release Notes document. MacTCP 2.0.5 was an interim release, only distributed internally at Apple.