2.64.4: (stable):

The tarball for 2.64.4 has been created with 'meson dist'.
If you build with Autotools from the tarball, please read the relevant
part of the README file.

Glib:
* PropertyProxyConnectionNode::connect_changed():
 Fix using without property name
 (Daniel Boles) Issue #74 (wswfc), merge request !35

gmmproc:
* Add optional decl_prefix parameter to _WRAP_GERROR and _WRAP_ENUM
 Used for adding GLIBMM_API or similar for MS Visual C++
 (Chun-wei Fan) Merge request !31
* Allow decorating comparison operators (for Visual Studio builds)
 (Chun-wei Fan) Merge request !34
* _CLASS_BOXEDTYPE, _CLASS_OPAQUE_COPYABLE: Fix move assignment
 (Kjell Ahlstedt) Issue #76 (misos1)
* Decorate private generated classes with __declspec when building
 with Visual Studio
 (Chun-wei Fan) Merge request !40, !42
* generate_wrap_init.pl.in: Use g_type_ensure(SomeClass::get_type())
 to ensure that get_type() is called
 (Kjell Ahlstedt)

Build:
* Use __declspec(dllexport) consistently when building glibmm with
 Visual Studio
 (Chun-wei Fan) Merge request !31
* Meson build: Set default value of the 'warnings' option to 'min'
 (Kjell Ahlstedt)
* Improve NMake support
 (Chun-wei Fan)
* Improve Visual Studio support
 (Chun-wei Fan) Merge request !36
* docs/reference/: Update for Doxygen >= 1.8.16
 (Kjell Ahlstedt)
* Meson build: Fix versioning on macOS
 (Kjell Ahlstedt) Pull request libsigcplusplus#65 (Tom Schoonjans)

Documentation:
* Glib::BalancedTree docs: Recommend std::map or std::unordered_map
 (Kjell Ahlstedt)
* Meson build: Add missing Glib::Value and Variant documentation
 (Kjell Ahlstedt)