• coalesce reads and writes by default on windows
• fixed disk I/O performance of checking hashes and creating torrents
• fix race condition in part_file
• fix part_file open mode compatibility test
• fixed race condition in random number generator
• fix race condition in stat_cache (disk storage)
• improve error handling of failing to change file priority
  The API for custom storage implementations was altered
• set the hidden attribute when creating the part file
• fix tracker announces reporting more data downloaded than the size of the torrent
• fix recent regression with force_proxy setting