Changes

The GENERATE_TREEVIEW option is not longer a boolean, but can now have 4 values, NONE (was NO), FRAME (was YES), HIERARCHIES, and ALL. Thanks to Jake Colman for the patch.
a page marked as a sub page (\subpage) is now shown in the LaTeX and RTF output as a section of its parent page. So the top level pages are shown a chapters, subpages as sections, subpages of a subpage as subsections, etc.
Included spec file updates by Kenneth Porter.
New features

id 514810: Added DOT_FONTNAME and DOT_FONTPATH options which allow instructing dot to use a different font than FreeSans.ttf which doxygen put in the output directory.
id 517242: Added option CHM_INDEX_ENCODING to specify the encoding to be used for the CHM index files. Needed because CHM index files cannot handle UTF-8 encoding.
id 519573: Included patch to make the font-size button visible in the CHM output.
id 521288: Added new options SHOW_NAMESPACES and SHOW_FILES to Suppress Namepace and Files Pages.
id 521495: Included a patch that makes it easy to modify the root of the html treeview with an image using style sheets.
id 522300: Added option IDL_PROPERTY_SUPPORT to enable/disable special propget/propput handling in IDL files.
Translation support for Finnish has been updated.
Added option FORMULA_FONTSIZE which can be used to change the font size of the formulas included in the HTML documentation.
included update for Russian translation.
included patch to fixed some issues with VHDL code and add support for some VHDL-93 constructs.
Bug fixes (ids refer to the bugzilla database)

Regression: fixed problem handling STL classes when BUILTIN_STL_SUPPORT was enabled
id 142866,377976: Added new \copybrief and \copydetails commands, which work as \copydoc but then only copy either the brief or the detailed part of a comment block.
id 312655: DISTRIBUTE_GROUP_DOC didn't always work in combination with SORT_BRIEF_DOCS enabled.
id 352234: The search index could contain invalid references when SOURCE_BROWSER=NO and CALL_GRAPHS=YES.
id 402447: Added support for C# method declarations with where clauses.
id 425029: WARN_FORMAT does no longer require all of $file, $line, $text to be valid.
id 495687: Replaced MAX_DOT_GRAPH_MAX_NODES with DOT_GRAPH_MAX_NODES in the docs & config file.
id 508694 Fixed problem with mixed simple and double quotes in fortran format declaration
id 508752: Fixed problem where the fortran scanner didn't recognize END
id 510971: Fortran: parser was confused by double REAL in processed statements.
id 514488: Fixed problem matching argument lists with const qualifiers.
id 514891: PDF generation failed with a LaTeX error when tocdepth was set to a value higher than 2.
id 515518: Links in member group documentation was broken when CREATE_SUBDIRS was enabled.
id 516086: Fixed division by zero when producing RTF output for the comment /** <table><tr></tr></table> */
id 516536: Fixed build issues on OSX 10.4 and earlier.
id 516070: Added support for simple events without accessors in C#.
id 516387: replace 0xA0 character in perlmodgen.cpp by a space to avoid compilation problems with the Chinese version of Visual Studio.
id 517112: Regression: examples with the same name but different paths cause "file not found" warning.
id 518334: Fixed problem parsing Objective-C protocol definitions.
id 518537: Hiding an enum with an undocumented typedef with the same name caused explicit referencing of the enum to fail.
id 519661: In some cases a function prototype could incorrectly be flagged as a variable with constructor.
id 520325: Fixed parse problem when comment was after an extern "C" block and before the opening bracket.
id 521234: Fortran: fixed problem causing "stack empty! when parsing code"
id 522225: PDF Latex output did not produce proper hyperlinks for \page and \subpage comment blocks.
id 522248: Page header were wrongly displayed in the RTF output.
id 522415: Fixed compile errors in addon/doxmlparser.
id 522600: Added additional warnings to signal invalid configurations.
id 523138: Removed redundant paragraph in navigation section of the HTML output.
id 523326: Namespace name was prepended twice to template specializations classes.
id 524357: Default mentioned for REFERENCED_BY_RELATION relation was not correct.
id 524359: Default mentioned for REFERENCES_RELATION relation was not correct.
id 524473: Removed incorrect warnings about parameters in VHDL.
id 525140: Improved handling of Objective-C 2.0 properties.
id 525143: Properties are now listed as attributes in the UML diagrams.
id 525144: GENERATE_DOCSET option greyed out in doxywizard.
id 526155: Removed warning about QFile::setName when parsing VHDL files.
id 527781: Template arguments for bases class not shown in a consistent way.
id 528023: Inheritance relations were not correctly displayed for C# generics.
id 528424: Fixed rendering bug in HTML output when used with Opera.
id 528584: Using enum and enum value with the same name in C# code caused crash.
id 528620: Fixed typo in French translation.
id 528815: Fixed problem parsing define() statements in PHP code.
id 528989: Leading C comment could prevent preprocessor expansion for the rest of the line.
id 529803: Doxygen didn't find call(er) relations for C# when using this.Method() calls;
id 529554: Putting defined() inside a macro caused the preprocessor to get confused.
id 529758: C++/CLI: default inheritance is now public, nested templates ending with >> are now handled properly as well as indexed properties.
id 530201: Avoided warning for undocumented self parameter in Python.