In version 6.1.4, default dimension search matched a search term against either one dimension or all dimensions. A dimension search against multiple dimensions was not possible without using a workaround that required the Dgidx flag --compoundDimSearch.

Furthermore, if you used default dimension search and set the Search Dimension parameter (Di) with a list of dimension IDs, the MDEX Engine returned no dimension search results. This behavior has changed in 6.2.0.

In version 6.2.0, you can search against a list of dimensions, rather than just one dimension or all dimensions, by setting the Search Dimension parameter (Di) with a list of dimension IDs. This behavior change applies only to default dimension search. Compound dimension search is unchanged from previous releases.

For additional details, see "Default dimension search", Chapter 16: "Using Dimension Search", and "Di (Search Dimension)" in the MDEX Engine Development Guide.