The newly published "Guidelines on coding time transformations in SDMX" (Version 1.0, September 2016) describe two methods that may be used to code a time transformation, defined as a time-related operation performed on a time series, solely involving observations of that time series. Examples of such time transformations are growth rates, cumulative sums over several periods and moving averages.

Furthermore two new codes have been added to the cross-domain code list for Observation Status in order to represent under-coverage (i.e. data included in another category) and over-coverage (i.e. category including data from another category).