e+ 2.18 is essentially a bug fix release. However, it also improves the P1/90 export with regards to head floats, and the checking of Px/11 and P2/94. Additionally, the support for editing undetermined offsets has been added (occurring in the P1/90 and possibly in Px/11). And last thing, e+ 2.18 is now able to detect gaps in the interpolated data.
