In Photoshop CC 2014, when you save a document (or Save As), the command will be added as a state in the History panel in case you want to access it after making additional changes. Just remember, the number of history states (listed in the History panel) depend on a setting in your preferences (Preferences > Performance > History States). Depending on your preferences and the number of changes made to the file, the Save (or Save As) state might eventually “roll off the top” of the panel. If you need access to the “Saved” state – regardless of how many changes are made to the open document, select the fly out menu on the History panel, select History Options, and enable “Automatically Create New Snapshot When Saving”. The snapshot will remain available (regardless of the number of changes made), until the file is closed.