BitComet(比特彗星)不只是一個強大的BT下載軟件。長效種子：獨有的長效種子功能，能顯著提高下載速度，延長種子壽命種子市場：用戶可以共享任務列表，也可以瀏覽下載其他人共享的任務。HTTP/FTP下載：應用領先的P2P技術，大大減輕下載服務器負擔，顯著提高下載速度。

極速下載

BT下載又被稱為變態下載，通過種子文件或者磁鏈可以和其他用戶交換數據，下載的同時也上傳數據，所有用戶都速度飛快！BitComet(比特彗星)完美支持各種主流BT下載協議，保證安心下載！

長效種子

BitComet(比特彗星)獨有長效種子功能，可以盡量避免種子用戶離開導致下載卡在99%，而且能夠顯著增加下載速度！

磁盤緩存

早年有部分下載軟件會傷硬盤，BitComet(比特彗星)首先使用了磁盤緩存技術，將磁盤的讀寫次數降到最低從而提高硬盤壽命。

邊下邊放

BitComet(比特彗星)在下載視頻文件的時候，優先下載文件頭尾，這樣可以實現邊下邊放，用戶可以在下載過程中提前預覽視頻內容。

高速而且功能強大
長效種子:獨有的長效種子功能，能顯著增加下載速度(0.93新功能)。
支持磁鏈:使用DHT網絡，無需Torrent文件即可進行BT下載。
邊下載邊播放:支持視頻預覽，在下載avi, rmvb, wmv等視頻文件過程中可以邊下載邊播放。
跨協議下載: BT任務可以自動查找HTTP/FTP/EMULE下載源，提高下載速度。
文件分塊對齊:創新的文件分塊對齊製作種子，兼容舊版而且不增加任何冗餘數據傳輸。
智能連接優化:自動根據您的網絡連接優化下載。
智能磁盤緩存:使用內存作下載緩存,有效減小硬盤讀寫速度,延長其使用壽命。
智能磁盤分配:有效減少磁盤碎片產生。
支持DHT網絡:通過公用DHT網絡，無需連接Tracker也能進行BT下載。自動配置防火牆，支持全自動配置Windows網絡連接防火牆(ICF)和網絡連接共享(ICS)。自動配置路由器端口映射，採用UPnP技術實現內網免配置（要求路由器支持UPnP）。支持多Tracker協議，UTF-8擴展，UDP Tracker v2協議。

HTTP/FTP下載
智能命名:創新的文件名智能命名,可以為MP3和軟件下載自動命名。
邊下載邊播放:在下載avi, rmvb, wmv等視頻文件過程中可以邊下載邊播放。
斷點續傳:安全可靠的斷點續傳技術，保證下載文件的完整性。
多線程下載:文件被分成多點同時從服務器下載，提高下載速度。
多鏡像下載:自動尋找文件鏡像，同時從多個服務器下載，提高下載速度。
多語言支持:能正確處理多語言操作系統多語言網頁，多語言路徑編碼過的網址。

任務管理
可以限制全局和單任務的上傳下載速度。
可以給任務加上標籤，方便分類管理。
時段限速，定時關機。

1.60
GUI Improve: add new command to File menu: add torrents from RSS feed
GUI Improve: add RSS page in Option window, to configure RSS feed auto refresh and RSS torrent auto download
GUI Improve: new setting in RSS page of Option window: add tag to task using feed title when auto download torrent from RSS feed
GUI Improve: new setting in RSS page of Option window: pause download when auto download torrent from RSS feed
GUI Improve: new setting in RSS page of Option window: filters for RSS torrent auto download
GUI Improve: add new commands to context menu of RSS list: Copy RSS feed URL, Open page in Browser
GUI Improve: able to download torrents using multiple-selection in RSS article list
GUI Improve: add toolbar to web page pane of RSS article
GUI Improve: new column in task list: number of task files
GUI Improve: improve display speed of opening Option windows
GUI Improve: support copy text in multiple lines of Statistics pane
Core Improve: add RSS feed auto refresh and RSS torrent auto download function
Core Improve: display corresponding RSS article title in task log when add torrent from RSS feed
Core Improve: improve disk reading cache for BitTorrent uploading, decrease UI lag
Core Bugfix: fix memory leakage when connecting to trackers using HTTPS protocol
Core Bugfix: fix bug in task merging when one task downloaded a torrent from HTTP having the same infohash as another task

1.59
GUI Improved: revert task remove window, add Cleanup command to task context menu
GUI Improved: improve Torrent Share list refresh
GUI Improved: the max value of advanced setting network.max_connecting_connections changed from 1000 to 10000
GUI Improved: add advanced option log.tracker_limit to set the max number of logs for tracker
GUI Improved: add advanced option log.task_limit to set the max number of logs for task
GUI Improved: add Clear Log command to context menu of Tracker list, available when system.show_debug_info enabled
GUI Improved: add Clear Log command to context menu of task log list, available when system.show_debug_info enabled
GUI Improved: display number of pending TCP connections in Statistics pane
GUI Improved: add indicator for private torrent in summary pane of BitTorrent task
Core Improve: improve memory allocation strategy, decrease memory fragment
Core Improve: decrease interval of creating new TCP connections, and increase network throughput
Core Improve: remove passkey parameter from tracker URL for private torrent received from Magnet Link
Core Improve: active Long-Term seeding after task downloading finished immediately
Core Improve: do not retry when failed to send STOP action to tracker
Core Bugfix: improve peer connection request algorithm, avoid new added peers not been connected for a long time

v1.58 [Windows] [macOS] 2019.7.6
– GUI Improved: support 32MB piece size when creating torrent file, and show estimated size of torrent
– GUI Improved: add fit column size command in context menu of list view header
– GUI Improved : add 2 new options in task remove window: delete unfinished download files only, delete all downloaded files
– GUI Improved: display torrent creator info in task summary page
– GUI Improved: improve floating window display for HiDPI
– GUI Improved: allow up to 10 new task windows to be displayed simultaneously
– GUI Improved: display flag for registered BitComet users of IPv6 in peers list of BitTorrent task
– GUI Improved: display tracker returned leechers amount in tracker list of BitTorrent task
– GUI Bugfix: display issue of item group fold/unfold in Statistics pane
– GUI Bugfix: max upload rate per BitTorrent task in Option window does not take effect immediately when changed
– GUI Bugfix: Long-Term seeding upload speed not displayed in tooltip of BitTorrent task summary pane when task stopped
– Core Improve: improve peer connection request algorithm: assign high priority for new added peers, and cleanup dead peers with failures
– Core Improve: enable Long-Term seeding immediately after new torrent created
– Core Improve: max allowed connection interval of tracker changed to 120 minutes
– Core Improve: add advanced option: bittorrent.save_connected_peers_only
– Core Bugfix: when select part of files in torrent to download, the left size sent to tracker should include all uncompleted files
– Core Bugfix: the upload, download size in first announce to tracker is incorrect when task restart after stop
– Core Bugfix: announcement not sent to tracker when task restart immediately after stop
– Core Bugfix: no DHT nodes should be written into torrent when DHT Network option unselected in torrent maker window
– Core Bugfix: connection error after first announce to HTTPS tracker
– Core Bugfix: HTTP download fails when URL contains IPv6 address host
– Core Bugfix: improve stability of Long-Term Seeding disk cache

1.50 Fіnаl:
GUІ Іmрrоvеd: thе fіlе lіѕt іn ВіtТоrrеnt tаѕk рrореrtіеѕ dіаlоg саn ѕwіtсh bеtwееn ѕіmрlе lіѕt аnd trее lіѕt
GUІ Вugfіх: bасkgrоund соlоr оf URL іnрut bох dіѕрlауеd іnсоrrесtlу whеn сrеаtе nеw НТТР tаѕk
GUІ Вugfіх: ѕрееd grарh dіѕрlауеd іnсоrrесtlу whеn hіgh ѕрееd dоwnlоаdіng
Соrе Іmрrоvе: rеfіnе Сrаѕh Rероrt рrоgrаm
Соrе Іmрrоvе: uрdаtе ВіtТоrrеnt сlіеnt іdеntіfісаtіоn соdе
Соrе Вugfіх: сеrtаіn fіlе nаmе dіѕрlауеd іnсоrrесtlу іn ВіtТоrrеnt tаѕk

1.49
GUI Improved: improve context menu of Torrent History list, Torrent Share list and Torrent Collection list
GUI Improved: add Transmission to allowed client list in Option window
GUI Improved: improve support for high-DPI monitor
GUI Bugfix: order disordered when collapse or expand sorted file list of BitTorrent task
GUI Bugfix: when open directory of a file in sub-directory from the file list of BitTorrent task, incorrect directory opened
Core Improve: update BitTorrent client identification code
Core Improve: decrease piece_part file size for BitTorrent task with only part files selected to download

1.48
GUI Improved: enhance webpage security
GUI Improved: minor UI improvement

v1.45
GUI Improved: support login account using email
GUI Improved: client IP address moved from status bar to context menu
GUI Bugfix: task size not displayed when opening torrent

軟件下載地址：

http://www.bitcomet.com/en/downloads

http://download.bitcomet.com/bitcomet/bitcomet_setup.torrent