Its not a mistake, I explained it in another thread (But can’t find it).
2.6.000 == 2.6
2.6.100 == 2.7RC1
2.6.200 == 2.7RC2
see because of how Eclipse update works, in order for 2.7 final to be “2.7.000” the ME team is using enumerations of the 2.6 series to make sure the updates are picked up. So when 2.7 goes final and the version is changed to “2.7.000” eclispe will pick it up and update it for you.