2.37.4 (unstable):

glibmm:
* Use std::memset() instead of GLIBMM_INITIALIZE_STRUCT
  (Because it causes compiler warnings with --std=c++ with g++,
  because that defines __STRICT_ANSI__.) and deprecate
  GLIBMM_INITIALIZE_STRUCT.
  (Kjell Ahlstedt)

giomm:
* Add Gio::DBus::InterfaceSkeleton.
  (José Alburquerque)

gmmproc:
* docextract_to_xml.py: Add '⇒' to the list of escape sequences.
  (José Alburquerque)
* Add _WRAP_ENUM_DOCS_ONLY() and simplify enum docs process.
  (José Alburquerque) Bug #703155
*  gmmproc: Use GMMPROC_RETURN_MISMATCHES environment variable.
  (José Alburquerque)
* Write glibmm version in generated files.
  (Kjell Ahlstedt) Bug #697835 and Bug #700495
  
Build:
* Move to a generated ChangeLog.
  (José Alburquerque)