Upgrade 2.5 to 2.5.1 with just the new files

running diff -r on the 2.5 and 2.5.1 code indicates the following files have been changed:
/wp-admin/admin-ajax.php
/wp-admin/async-upload.php
/wp-admin/comment.php
/wp-admin/css/colors-classic.css
/wp-admin/css/colors-fresh.css
/wp-admin/css/media.css
/wp-admin/css/widgets-rtl.css
/wp-admin/css/widgets.css
/wp-admin/custom-header.php
/wp-admin/edit-attachment-rows.php
/wp-admin/edit-form-advanced.php
/wp-admin/edit-form-comment.php
/wp-admin/edit-link-form.php
/wp-admin/edit-page-form.php
/wp-admin/edit-post-rows.php
/wp-admin/edit.php
/wp-admin/import/blogger.php
/wp-admin/import/mt.php
/wp-admin/includes/admin.php
/wp-admin/includes/class-wp-filesystem-direct.php
/wp-admin/includes/comment.php
/wp-admin/includes/dashboard.php
/wp-admin/includes/file.php
/wp-admin/includes/image.php
/wp-admin/includes/media.php
/wp-admin/includes/post.php
/wp-admin/includes/schema.php
/wp-admin/includes/template.php
/wp-admin/includes/upgrade.php
/wp-admin/includes/widgets.php
/wp-admin/index.php
/wp-admin/js/editor.js
/wp-admin/js/post.js
/wp-admin/js/widgets.js
/wp-admin/media.php
/wp-admin/menu.php
/wp-admin/page.php
/wp-admin/post.php
/wp-admin/rtl.css
/wp-admin/users.php
/wp-admin/widgets.php
/wp-admin/wp-admin.css
/wp-config-sample.php
/wp-content/plugins/akismet/akismet.php
/wp-includes/class-IXR.php
/wp-includes/classes.php
/wp-includes/comment.php
/wp-includes/feed-atom.php
/wp-includes/formatting.php
/wp-includes/functions.php
/wp-includes/js/autosave.js
/wp-includes/js/swfupload/handlers.js
/wp-includes/js/tinymce/plugins/fullscreen/editor_plugin.js
/wp-includes/js/tinymce/plugins/fullscreen/fullscreen.htm
/wp-includes/js/tinymce/plugins/inlinepopups/editor_plugin.js
/wp-includes/js/tinymce/plugins/inlinepopups/skins/clearlooks2/window.css
/wp-includes/js/tinymce/plugins/inlinepopups/template.htm
/wp-includes/js/tinymce/plugins/media/editor_plugin.js
/wp-includes/js/tinymce/plugins/media/media.htm
/wp-includes/js/tinymce/plugins/paste/blank.htm
/wp-includes/js/tinymce/plugins/paste/pastetext.htm
/wp-includes/js/tinymce/plugins/paste/pasteword.htm
/wp-includes/js/tinymce/plugins/wordpress/editor_plugin.js
/wp-includes/js/tinymce/themes/advanced/about.htm
/wp-includes/js/tinymce/themes/advanced/anchor.htm
/wp-includes/js/tinymce/themes/advanced/charmap.htm
/wp-includes/js/tinymce/themes/advanced/color_picker.htm
/wp-includes/js/tinymce/themes/advanced/editor_template.js
/wp-includes/js/tinymce/themes/advanced/image.htm
/wp-includes/js/tinymce/themes/advanced/js/image.js
/wp-includes/js/tinymce/themes/advanced/js/link.js
/wp-includes/js/tinymce/themes/advanced/link.htm
/wp-includes/js/tinymce/themes/advanced/skins/default/content.css
/wp-includes/js/tinymce/themes/advanced/skins/default/ui.css
/wp-includes/js/tinymce/themes/advanced/skins/o2k7/content.css
/wp-includes/js/tinymce/themes/advanced/skins/o2k7/ui.css
/wp-includes/js/tinymce/themes/advanced/source_editor.htm
/wp-includes/js/tinymce/tiny_mce.js
/wp-includes/js/tinymce/tiny_mce_config.php
/wp-includes/js/tinymce/tiny_mce_popup.js
/wp-includes/js/tinymce/wordpress.css
/wp-includes/js/wp-lists.js
/wp-includes/link-template.php
/wp-includes/media.php
/wp-includes/pluggable.php
/wp-includes/post-template.php
/wp-includes/post.php
/wp-includes/query.php
/wp-includes/rewrite.php
/wp-includes/script-loader.php
/wp-includes/shortcodes.php
/wp-includes/taxonomy.php
/wp-includes/theme.php
/wp-includes/user.php
/wp-includes/version.php
/wp-includes/widgets.php
/wp-login.php
/wp-settings.php

See also: https://www.ads-software.com/development/2008/04/wordpress-251/

The list is here.

Thank you all very much!

is it enough if we change these files only ?

I did change only these files, but I since then I have problems with uploading pictures. But a lot of other users have image-problems too, since they upgraded to 2.5.1. So I think it’s a general 2.5.1 problem.