Below are the changes for the current release.
See the CHANGES file for changes in older releases.
See the RELEASENOTES file for a summary of changes in each release.

Version 3.0.9 (in progress)
===========================

2016-03-11: wsfulton
            [Java C#] Add support for treating C++ base classes as Java interfaces
            instead of Java proxy classes. This enable some sort of support for
            multiple inheritance. The implementation is in swiginterface.i and
            provides additional macros (see Java.html for full documentation):

              %interface(CTYPE)
              %interface_impl(CTYPE)
              %interface_custom("PROXY", "INTERFACE", CTYPE)

2016-03-01: wsfulton
            Add rstrip encoder for use in %rename. This is like the strip encoder but
            strips the symbol's suffix instead of the prefix. The example below
            will rename SomeThingCls to SomeThing and AnotherThingCls to AnotherThing:

              %rename("%(rstrip:[Cls])s") ""; 

              class SomeThingCls {};
              struct AnotherThingCls {};

2016-02-07: kwwette
            [Octave] recognise various unary functions
            * Use __float__() for numeric conversions, e.g. when calling double()
            * Map various unary functions, e.g. abs() to __abs__(), see full list
              in section 32.3.10 of manual; only available in Octave 3.8.0 or later

2016-02-07: kwwette
            [Octave] export function swig_octave_prereq() for testing Octave version

2016-02-06: pjohangustavsson
            [C#] Fix duplicate symbol problems when linking the source generated
            from multiple SWIG modules into one shared library for the -namespace
            option. The namespace is now mangled into the global PInvoke function
            names.

            *** POTENTIAL INCOMPATIBILITY ***

2016-01-27: ahnolds
            [Python] Added support for differentiating between Python Bytes
            and Unicode objects using by defining SWIG_PYTHON_STRICT_BYTE_CHAR
            and SWIG_PYTHON_STRICT_UNICODE_WCHAR.

2016-01-27: steeve
            [Go] Ensure structs are properly packed between gc and GCC/clang.

2016-01-25: ahnolds
            [Python] Support the full Python test suite in -classic mode
            * Convert long/unsigned long/long long/unsigned long long to PyInt
              rather than PyLong when possible. Certain python functions like
              len() require a PyInt when operating on old-style classes.
            * Add support for static methods in classic mode, including support
              for pythonappend, pythonprepend, and docstrings.
            * Removing the use of __swig_getmethods__ for static member methods
              since they will always be found by the standard argument lookup
            * Fix a bug where the wrong type of exception was caught when
              checking for new-style class support

2016-01-23: ahnolds
            [Go] Enable support for the Go test-suite on OSX:
            * The linker on OSX requires that all symbols (even weak symbols)
              are defined at link time. Because the function _cgo_topofstack is
              only defined starting in Go version 1.4, we explicitly mark it as
              undefined for older versions of Go on OSX.
            * Avoid writing empty swigargs structs, since empty structs are not
              allowed in extern "C" blocks.

2016-01-12: olly
	    [Javascript] Look for "nodejs" as well as "node", as it's packaged
	    as the former on Debian.

2016-01-12: olly
	    [Javascript] For v8 >= 4.3.0, use V8_MAJOR_VERSION.
	    Fixes https://github.com/swig/swig/issues/561.

2016-01-10: ahnolds
            Improved size_t and ptrdiff_t typemaps to support large values
            on platforms where sizeof(size_t) > sizeof(unsigned long) and
            sizeof(ptrdiff_t) > sizeof(long).