GUI Improved: add "Uploading" queue to the left fav bar
GUI Improved: BT task file list in properties dialog and right-bottom pane changes to tree list for directory structure
GUI Improved: BT task file list in properties dialog and right-bottom pane support sorting
GUI Improved: add new commands to context menu of BT task file list: expand/collapse folders
GUI Improved: add check box to BT task file list pane for each file and folder, to switch download it or not
GUI Improved: add connection status icon for each peer in BT task peer list
GUI Improved: add "new peer" command to context menu of BT task peer list
GUI Improved: BT task peer list displays prompt string when frozen by ScrollLock
GUI Improved: support only export selected tasks into backup file
GUI Improved: support import tasks from backup file and merge them into task list
GUI Improved: select whether import global program settings while import tasks from backup file
GUI Improved: language list in Tools menu changes to a 2-level sub menu
GUI Improved: add loading page to task content, Snapshot, Comment and Recommend pane
GUI Improved: do not clear rate graph in floating window when stop all tasks
GUI Improved: do not show the message of missing BitCometAgent.dll when program start
GUI Bugfix: when open a GB2312 encoding torrent file in traditional Chinese Windows, the task name and publish info displays incorrectly after change character encoding
GUI Bugfix: TCP, UDP mode setting of Long-Time seeding in advanced options can not be saved
GUI Bugfix: restore the torrent archive list which removed in v1.12
Core Improve: improve taskname.piece_part.bc! file structure, which used to save file boundary data for BT task, therefore decreased memory usage
Core Improve: BT task Anti-Leech setting changes to three levels: "disable", ""auto", "strict"
Core Improve: improve network modular code, avoid program losing response when download in high speed

GUI Improved: add support for several new languages (see lang\HowTo-Translate.txt)
GUI Bugfix: if select none of files in BT task to download, the task progress will display incorrectly when program start next time
Core Bugfix: memory leak in UDP uploading modular of Long-Time seeding
Core Bugfix: too many memory and CPU used when Long-Time seeding in high speed using UDP

GUI Improved: optimize reconnect time after Comet Passport sign in failed
Core Improve: set the thread priority of UDP Long-Time seeding below normal
Core Bugfix: program may crash when UDP Long-Time seeding

- Core Improve: add disk cache for UDP Long-Time seeding, 50MB max