Tixati 1.97 (64-bit)

What's new in this version:

DHT Overhaul:
- significantly faster DHT search speed
- vastly better protection against DoS and Clone/Flood attacks
- new incoming transaction soft ratelimiting system, to keep overall DHT traffic low under severe network conditions
- better cross-table high network concentration detection heuristics
- IPv4/6 cross-protocol bootstrapping improvements, better compatibility with Teredo systems

Transfers:
- overhauled PEX (peer exchange) caching system
- increased maximum metadata size to accommodate extremely large torrents
- sparse file allocation is now the default method on filesystems that support it
- loosened file last-modified time matching rules (in an attempt to stop some reported problems with NAS units)
- eliminated a pause after clicking the Add button in some XP systems
- failing tracker will not fallback to unannounced mode while transfer is in running mode
- minor tracker protocol compatibility adjustments
- no downloading while checking during initialization phase
- fixed a crash in the preload window when Apply To All is checked and Skip Queue is selected

Channels:
- overhauled connection certificate caching system for more reliable connections
- using alternate threading strategy for channel stream piece decoding (eliminates a Win7-only handle leak caused by a faulty 3rd party POSIX threading library)
- stream titles show in chat via /streamtitles option
- option to randomize selected stream playlist items
- short duration ts/mp3 files are streamed more smoothly
- fixed several other minor bugs with stream title passthrough to media player
- version column in connections view
- channel-list search IP concentration limits loosened
- several minor protocol tweaks
- channel search function minor fixes

Elsewhere:
- fixed problems with POSIX threading library on Win7 platforms (handle leak)
- fixed problems with system suspend/resume on Win7 platforms
- improved SSDP and SLRD local peer discovery port-bind error handling
- minor UPC protocol adjustments
- minor fixes in UPC socket diagnostic charts
- Linux system suspend inhibition is now more reliable
- fixed minor problems in XP systems with saving config files in too large of chunks
- better handling of URLs containing # symbol (in RSS and other places HTTP is used)
- updated IP-Country database
- Future/Soon/Next
- eliminate usage of file last-modified times to trigger checking (will instead keep block/file level hashes and use dynamic checking)
- overhaul of transfer multi-file management logic
- further investigation of some Win8 kernel panic problems (we did not observe problems on any of our Win8 systems, and are still trying to track this down)
- replacement of the .torrent auto-load system with something more reliable than the Windows file change notification API
- RSS auto-load / auto-start problems (this has also been difficult to recreate on our systems)
- a report of a Scheduler freezing problem
- overall framework upgrade to a leaner C++11 based system