In my case (Combat) my 5s/5r/5e cycle build went from 28.17s to 28.24s (lower DPS) and of course a bit lower DPS (same settings, same gear, same buffs). I investigated it to find that the only cell responsible is Cycles!B1 (Energy per second) - inserting exact value from 0.4.4 resulted in reverting back to 28.17 and almost same old DPS. Further investigation shown that previous value of this cell referred to cycleslice2 cell which had value of 100% while now it refers to cycleslice1 cell with value of 96%. I've lost myself there and have no idea which calculations are correct and which are not, so until somebody else will explain it better, let's assume that new version is simply more accurate.
Edit: I can bring more details on my specific gear and settings if needed
to add thoughts for smarter people to play with, are these the cells that were referenced in change stating that SND uptime assume 100% before cycles applied in the version change notes?
or perhaps a slight difference in energy regen procs calculated now that the sheets are streamlined instead of feeding back and forth (or whatever they did before).
Hopefully my inane comments will cause others better suited to expound helpfully =)