This file records noteworthy changes.
+1.7.8 (7 October 2019)
+* Fix pseries::evalf(), broken since 1.7.0.
+* Fix a corner-case bug in H_evalf().
+
+1.7.7 (22 September 2019)
+* Fix unarchiving empty containers.
+* Remove obsolete exhashmap implementation.
+* Fix issues with zeta computation.
+* Build with Python3.
+
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.