== [7.4.20] (not released yet) ==
+* Eliminate 'unused function GC_add_map_entry' compiler warning
+* Eliminate 'while clause does not guard' GCC warning in GC_parse_map_entry
* Fix OS_TYPE and USE_MMAP_ANON definitions for Cygwin/x64
* Fix configure message about 'AIX gcc optimization fix'
== [7.2o] (not released yet) ==
* Explicitly zero-initialize trace_buf (fix trace_buf initialization)
+* Fix 'expected function body after declarator' clang error in gc_cpp.cc
* Fix configure message about 'AIX gcc optimization fix'
* Fix first_thread stack_base initialization if custom GC_stackbottom (Win32)
+* Fix fread failure after enable_incremental if malloc is redirected (Linux)
* Fix incorrect define GC_OPENBSD_THREADS on sparc64
* Fix printf format specifier in simple_example.html
* Fix save_callers for multi-threaded case if built-in backtrace unavailable