== [7.4.20] (not released yet) ==
+* Fix OS_TYPE and USE_MMAP_ANON definitions for Cygwin/x64
* Fix configure message about 'AIX gcc optimization fix'
Also, includes 7.2o changes
* Fix configure message about 'AIX gcc optimization fix'
* Fix printf format specifier in simple_example.html
* Fix various typos mostly in documentation files
+* Remove a misleading comment about Solaris in gc.h
== [7.2n] 2019-03-01 ==