+0.5.v - dd/mm/yyy - bugfix release
+ * mstyle support in notation for text color, font size
+ * AutoGui now scales fonts to the correct user-requested size Non
+ * linear pattern matching from the level of terms to the
+ one of content in interpretation command (if the same variable name
+ is used, the two captured terms must be alpha equivalent to match)
+0.5.3 - 23/7/2008 - bugfix release
+ * many fixes concerning the CProp hiearchy
+ * coercion database simplified
+ * coercion hiding now works properly for coercions to funclass
+ * triangular pullback works better with coercions to the function space
+ * notation for lists fixed to add a break point after the separator
+ * notation for the existential is now user definable
+ * \infrule layout added, allows to display readable fractions
+ * better window for terms grammar and TeX/Unicode
+ * fixed a bug in the positivity check not considering some subterms
+ * fixed some GUI glitches thanks to glade-3
+
+0.5.2 - 2/7/2008 - better-usability-for-the-working-constructivist release
+ * refinement of match fixed to prevent useless unfolding,
+ head_beta_reduce is used instead of whd ~delta:true
+ * CProp hierarchy, interleaved with type (used to be a single universe)
+ * Notation now allows to set the precedence level of subterms, avoiding
+ unnecessary parenthese
+ * UTF-8 / TeX conversion table is now available in the Help menu
+ * Notation subsystem described in the manual
+ * EBNF term grammar is now available in the View menu (and is in sync with
+ the currently loaded notation)
+ * Rewrite tactic (in hypothesis) now computes the right sort and
+ uses the right equality elimination principle
+ * URI free interpretation and coercion statements (scripts are almost
+ relocatable now)
+ * elim and cases tactic now support a pattern to specify hypotheses that
+ are generalized before the elimination.
+
+0.5.1 - 29/5/2008 - minor bug fix release
+ * visualization of inductive types reports the number of fixed parameters
+ * a wrong context was used to refine fixpoints arguments
+ when trying to optimize out the letin (grep for `AvoidLetIn):
+ (let rec f x = Fix... in f t ---> Fix... t)
+ * auto fixed to prefer goals with metavariables to closed ones,
+ added new syntax to specify the universe "auto by t1, t2, ...",
+ updated documentation describing all auto parameters
+ * declarative language syntax and documentation ported to the new
+ auto parameters
+
0.5.0 - 9/5/2008 - bugfix release
* first release not considered experimental