EDIT: just a note, I've just read through the changelog, I'm excited about some of these fixes/improvements that have been included, nice
the following files were provided as file-replacements in the upgrade, but there are no code changes, only changes to copyright, etc (for the 4.1.9 to 4.1.10 upgrade)
- include/patch.php
- admin/patch_files.php
- admin/patch_sql.php
the following files should be updated via DIFF files to preserve existing modifications (imho):
- admin/patch.php
- admin/upgrade.php
- Smarty-2.6.12/Smarty_Compiler.class.php
- Smarty-2.6.12/modifier.regex_replace.php
- include/templater/templater.php
- check_requirements.php
- prepare.php