This file records noteworthy changes.
+1.5.4 (02 November 2009)
+* Default parser now can again read in user defined classes.
+* Add mul::info() and add::info() support for numeric info_flags (GiNaC now can
+ detect that the sum or product of a number of positive expressions is again a
+ positive expression).
+* Fixed cast that caused compile error on 64bit machines.
+* Fixed incorrect uses of STL iterators.
+* Removed subdirectory debian.
+* Output LaTeX-symbols using \mathrm, instead of \mbox.
+
1.5.3 (30 July 2009)
* The parser now understands user-defined functions by default. The identifier
names can now contain underscores.