as of TYPO3 4.4 the SpriteManager appeared, tt_news (3.0.1) starts creating lines in the deprecated log. it´s one line changed in tt_news´ ext_tables.php file.
$ICON_TYPES['news'] = array('icon' => t3lib_extMgm::extRelPath($_EXTKEY).'res/gfx/ext_icon_ttnews_folder.gif');
must be changed to:
t3lib_SpriteManager::addTcaTypeIcon('pages', 'contains-news', '../typo3conf/ext/tt_news/res/gfx/ext_icon_ttnews_folder.gif');
this is obviously part of the deprecation message thus a no-brainer. but this way you can avoid even the first appearance of this message o.O
