This file records noteworthy changes.
-1.7.7 (dd September 2019)
+1.7.11 (3 August 2020)
+* Fix elusive bugs in factor() and in expand().
+
+1.7.10 (28 June 2020)
+* Fix collect_common_factors() for hidden zero arguments.
+* Fix build on modern systems (C++20 and Python3).
+
+1.7.9 (11 April 2020)
+* Fix unarchiving of overloaded functions.
+* Fix MinGW64 build.
+
+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.