Update NEWS.md

NEWS.md

@@ -1,5 +1,15 @@
 # cbcTools (development version)
 
+# cbcTools 0.6.0
+
+- Major revisions made to `cbc_design()` function.
+- New `"efficient"` method added for obtaining D-efficient designs.
+- Old methods removed: `"full"`, `"orthogonal"`, `"dopt"`, `"CEA"`, and `"Modfed"`. Now there are only `"random"` and `"efficient"` designs
+- Bayesian D-efficient designs are now created by setting `method = "efficient"` and a set of priors with a diagonal or full covariance matrix.
+- New `cbc_d_error()` function added to obtain the D-error of a given design.
+- New `cbc_priors()` function for defining a variety of prior model coefficients.
+- New `cbc_levels()` function for viewing a summary of the levels in a design.
+
 # cbcTools 0.5.2
 
 - Bug fix in checking input settings (#34)