Changes after 1.6.2:
+ * The CTABLES command is now implemented.
+
+ * FREQUENCIES now honors the LAYERED setting on SPLIT FILE.
+
* Building from a Git repository, which previously required GIMP, now
requires rsvg-convert from librsvg2 instead.
Changes from 1.6.1 to 1.6.2:
+ * Previously, numeric variables defaulted to "scale" measurement
+ level. Now, the default is "unknown", with a better guess chosen
+ based on heuristics the first time the data is read.
+
* Bug fixes.
Changes from 1.6.0 to 1.6.1: