Nothing has changed, below is what is stated in the most recent 2016 DAT Guide
QUANTITATIVE REASONING (40 items)
Mathematical Problems Algebra (equations and expressions, inequalities, exponential notation, absolute value, ratios and proportions, and graphical analysis); Numeric calculations (fractions and decimals, percentages, approximations, and scientific notation); Conversions (temperature, time, weight, and distance); Probability and Statistics; Geometry; and Trigonometry