Given a float variable value that cannot be represented (binary) entirely but only approximated ex: 96.123456 that is approximated to 96.12345886230469.
The following test cases fail:
a) Monitored Item Services/Monitor Value Change/Test Cases/033.js
b) Monitored Item Services/Monitor Value Change/Test Cases/035.js

The above mentioned test cases fail due to a bug in the test case/test helper methods.

The initialValueOverride value is set to be equal to the aproximated value 95.12345886230469.
Later the follwoing assert is called and does not "hold" true due to the fact that item.Value.Value is 95.123:
Assert.True( ( initialValueOverride == item.Value.Value ), "Expected the item in the dataChange to contain the same value as was first read." );

The demonstration that this is a problem on the CTT side can be done by the attached Wireshark capture, that clearly shows that the value send to the server via WriteRequest (pckt 28) is equal to the one received in the data change notification (pckt 33), therefore the server side does not produce a loss of float value precision.