This file records noteworthy changes.
+1.7.6 (22 April 2019)
+* Fix a bug in mul::series() about asymptotic order term.
+* Fix cl_N code generation for small negative integers.
+* Fix multiple polylog computation related to trailing zeros and user-specified
+ signs for small imaginary parts.
+* Fix CMake build with Python3.
+
1.7.5 (17 February 2019)
* Add Markowitz-ordered Gaussian eliminatin.
* Avoid un-normal zeros in matrix::solve().