2.6.1:

* Interface::add_interface(): Disabled the check for a second call, 
  introduced in 2.6.0, for now, because it stops some valid uses.
  (Bryan Forbes)

2.6.0:

New stable version. Changes compare to glibmm 2.4.x:

* Added Option, OptionContext, OptionGroup for parsing of command-line arguments.
* Added filename_display_basename() and filename_display_name().
* Added setenv() and unsetenv().
* add_interface() methods will no longer give warnings if you 
  call them twice.
* gmmproc:
  - Now reuses C properties documentation.

2.5.6:

* add_interface() methods will no longer give warnings if you 
call them twice.
* gmmproc: Output properties documentation taken from the .defs.
* examples now build on AIX.
  (Murray Cumming)
* MSVC++ .Net 2003 build fix. (Cedric Gustin)

2.5.5:

* Now builds with the following compilers, in addition to 
the existing GNU g++, and Intel compilers:
- SUN Forte CC 5.5
- IBM AIX xlC v7
- Tru64 C++ V6.5-042
- IRIX MIPSpro 7.4.2m
  (Older versions of all these compilers might also work.)
  (Murray Cumming, www.thewrittenword.com)
* Now builds with MSVC++ .Net 2003 (gtkmm 2.4 already did).
  (Cedric Gustin)
  
2.5.4:

Options:
* Added Option(GOptionGroup* cast_item) constructor,
  needed by Gtk::Main.
* Added reference documentation.
(Murray Cumming)

2.5.3:

* Options:
  - Allow parsing of boolean arguments (arguments with no value).
  - Really use the short names.  
  (Daniel Holbach, Murray Cumming)
* Added filename_display_basename() and filename_display_name().
  (Murray Cumming)
* Added setenv() and unsetenv(). (Murray Cumming)
* Use static keyword to prevent exporting private API.
  (Benoît Dejean)
* input example: Improvements and simplification. (Chris Vine) 

2.5.2:

* OptionEntry: Remove useless enum. (Murray Cumming)
* Documentation:
  - examples: Added iochannel_stream example. (Chris Vine)
  - reference: Generate more reference API from the C documentation, and
    try to use the libstdc++ doxygen tags file to link to their 
    documentation. (Murray Cumming)

2.5.1:

* OptionContext, OptionGroup, OptionEntry: Made the add_entry() methods 
  type-safe and fixed several problems memory-management problems. This 
  API is now worth looking at.

2.5.0:

* Added OptionContext, OptionGroup, and OptionEntry classes, for
  parsing of command-line options. See examples/options/

2.4.4:

* Signals: Avoid crashes when disconnecting a signal when handling that signal.
  (Murray Cumming, Martin Schulze)
* 
2.4.3:

* Minor improvements to reference documentation. (Daniel Elstner)
* Minor Glib::Dispatcher improvements (Daniel Elstner)

2.4.2:

* Glib::Dispatcher: win32 implementation rewritten, and hopefully, improved.
  (Daniel Elstner)
* Glib::ustring:
  - Optimization and code-cleanup. (Daniel Elstner)
  - Added reference documentation for constuctors. (Murray Cumming)
* Fixed some compiler warnings.
  (Daniel Elstner)
* gmmproc: Some improvements for libgdamm. (Murray Cumming)


2.4.1:

* Build fixes for gcc 3.4.0.
* Doxygen not required when building from tarballs.
  (Murray Cumming)


2.4.0:

Changes since 2.2.0:

* Now separate from gtkmm, so you can use things like Glib::ustring without depending on gtkmm. This glibmm 2.4 API installs in parallel with gtkmm 2.0/2.2, so you can install applications which use either.
* When using pkg-config, you should check for "glibmm-2.4".
* Glib::ObjectBase inherits virtually from SigC::Object, allowing multiple inheritance with other classes that inherit from SigC::Object.
* RefPtr:
  - is_null() was removed, to encourage you to use "== 0" instead.
  - operator=(CppObject*) was removed.
* The gtkmmproc code-generator is now gmmproc, and has several improvements to support gtkmm 2.4.
* Now uses improved libsigc++ 2.0 API.
* Added i18n.h and i18n-lib.h, which include the relevant
  glib headers, which declare internationalization 
  macros such as _().
* New methods:
  Glib::spawn_close_id(), Glib::MainLoop::depth(),
  Glib::Date::clamp_min(),  Glib::Date::clamp_max(). 
* Improved documentation.

 
2.3.8:

* Fix crash when using Glib::Main signals.
  (Martin Schulze)
* Corrected the configure-time SUN compiler check.
  (Murray Cumming, Alexander Nedotsukov)

2.3.7:

* Added configure macros to detect SUN compiler oddities.
* Various SUN Forte C+ and g++ 3.4 (cvs) build fixes.
  (Murray Cumming)
* gmmproc: Improved parsing of C docs.
  (Hagen Moebius)

2.3.6:

* Added i18n.h and i18n-lib.h, which include the relevant
  glib headers, which declare internationalization 
  macros such as _(). (Murray Cumming)
* Added Glib::spawn_close_id(). (Murray Cumming)
* Added Glib::MainLoop::depth(). (Murray Cumming)
* Documentation: corrections to CHANGES (Martin Schulze).
* gmmproc: Can now handle "const const_iterator& iter"
  parameter names without getting confused by 2 consts.
  (Murray Cumming)

2.3.5:

* glibmm now uses libsigc++ 2 rather than libsigc++ 1.2.
 
2.3.4:

* ListHandle/SListHandle (intermediate container types):
  - Added a const_cast<> to allow lists of const elements.
* gmmproc: _WRAP_SIGNAL(): Added optional custom_c_callback 
  parameter.
  (Murray Cumming)
* WIN32: Build fixes, mostly merged from the 2.2 branch.
  (Cedric Gustin) 
 
2.3.3:

* gmmproc (code generator)
  - properties: Make read-only properties have const accessors,
    and add a second read-only const accessor for normal
    properties. Wrap construct-only properties as read-only,
    instead of ignoring them.
  - vfuncs: Really generate const vfuncs when requested. Put
    the method declaration directly into the .h file, so that
    the doxygen documentation can be next to it.
  - documentation:
    - Remove mergecdocs configure option - always
    merge the C docs, to avoid any risk of uploading or
    releasing empty documentation. Just delete the *_docs.xml
    files to make building from cvs faster.
    - Install a GLIBMM_CHECK_PERL() macro, for use by gtkmm
    and other *mm projects, to get the perl path needed by
    doxygen.
    - Install beautify_docs.pl so it can be reused in gtkmm
    and other *mm projects, instead of having lots of copies.
* Glib::ObjectBase: The default constructor, never before used,
  now generates a custom GType, for use when creating new
  implementations of Glib::Interfaces - for instance, see the
  new custom tree model example in gtkmm.
* Glib::Date: Added clamp_min() and clamp_max().
  (Murray Cumming)

* Documentation:
  - Added reference documentation for MainLoop, MainContext, 
    Source, and Date. (Alberto Paro)
  
2.3.2:

* gmmproc (code generator):
  - signal proxies have extra space to avoid << with templates.
  - Added WRAP_METHOD_DOCS_ONLY() for reusing documentation even
    when the method is hand-coded.
  - _WRAP_SIGNAL(): Added optional no_default_handler parameter,
    because some of the new GTK+ signals have no public default 
    handler vfunc.
* Added Glib::init(), for use by non-GUI apps which need to 
  use Glib::wrap().
* PropertyProxy: Can now be used with Interfaces.
* Documentation improvements, so that gtkmm docs link to glibmm
  docs.
  (Murray Cumming)

2.3.1:

* gmmproc changes needed by gtkmm 2.3.0
  (Murray Cumming)
* examples updated and buildable and working,
  without gtkmm code.
  (J. Abelardo Gutierrez)

Changes in glibmm 2.3.0:

* Now separate from gtkmm, so you can use things like Glib::ustring without depending on gtkmm.
  This glibmm 2.4 API installs in parallel with gtkmm 2.0/2.2, so you can install this unstable library 
  without the risk of breaking existing application.
* This does not yet require glib 2.3 because there has been no tarball release of that yet. For now, you
  can use glibmm 2.3.0 with glib 2.2.x.
* When using pkg-config, you should check for "glibmm-2.4".
* Glib::ObjectBase inherits virtually from SigC::Object, allowing multiple inheritance with other
  classes that inherit from SigC::Object.
* RefPtr:
  - is_null() was removed, to encourage you to use "== 0" instead.
  - operator=(CppObject*) was removed.
* gtkmmproc is now gmmproc.
* All the glibmm bugfixes in gtkmm 2.2.x.