add utorrent 3.6.0 - #46
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The original PR NikolayIT#46 added uTorrent 3.6.0 but used UT3320 (3.3.2) values for User-Agent, PeerID prefix and SearchString instead of UT3600. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0145awWnPzsCjUvneEgnUSmk
Added 15 new uTorrent client profiles to cover the full version range: - 3.5.5, 3.5.3, 3.5.1, 3.5.0 (3.5.x series) - 3.4.9, 3.4.2, 3.4.0 (3.4.x series) - 3.1.3, 3.1.0, 3.0.0 (3.0.x / 3.1.x series) - 2.2.1, 2.2.0 (2.2.x series) - 2.0.4, 2.0.2, 2.0.0 (2.0.x series) Each client uses the correct Azureus-style peer ID (-UTXXYY-) and matching User-Agent header (uTorrent/XXYY). Updated the version dropdown in RM.cs accordingly. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0145awWnPzsCjUvneEgnUSmk
Fix uTorrent 3.6.0 client version identifiers (resolves NikolayIT#46)
NikolayIT
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Sep 7, 2026
Both new profiles come from real announces (a public capture of 3.5.5 and the SB-Innovation client files for builds 44994-46074 and 46828), not from extrapolating the 3.3.2 entry: - The peer id is "-UT360S-"/"-UT355S-", then the build number as a little-endian 16-bit integer, then ten random bytes. The old 0.43 entries already encoded the build that way (30488, 29625, 19078, 17414 and 11903 are all real builds), which is why PR #46's twelve random bytes after "-UT3550-" would have stood out to a tracker that decodes them. - The user agent is uTorrent/360(113358572)(46828): a per-version constant times 65536 plus the build, then the build again. The constant is 1729 for 3.6.0 and 1707 for every 3.5.5 build seen. - The headers end with "Connection: Close", which 3.x sends and the 0.43 entries lack. uTorrent 2.0.1, 1.8.5, 1.8.1-beta, 1.8.0, 1.7.7, 1.7.6, 1.7.5, 1.6.1 and 1.6 are gone; no tracker has accepted them for a decade. A saved torrent that used one of them falls back to the default client through ClientProfileCatalog.GetByName. The catalog now holds 35 profiles and the goldens were regenerated for the new list.
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Thanks for the PR. uTorrent 3.6.0 and 3.5.5 emulations are now on master and will ship in RatioMaster.NET 1.1 (1ce9065). They were built from real announces rather than by copying the 3.3.2 entry, because the real client differs from what this PR sends: the peer id prefix is -UT360S- / -UT355S- (S for stable), the two bytes after it are the build number as a little-endian 16-bit integer followed by ten random bytes, the user agent is uTorrent/360(113358572)(46828) style with the build in it, and the headers end with Connection: Close. The old Source/ tree this PR changes no longer exists (1.0 is a complete rewrite, and emulations now live in clients.json), so I am closing this one. |
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