UDP DNS now uses UDNS, which is embedded in the libtorrent source code.

Colors, LUA and json-rpc are now supported in the client.

There's now an issue created requesting testing and recommendation of config presets, which aims at
making easier to set up the client for specific environments / usage. (#1428)

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libtorrent

1. Use C++17.

   • rakshasa/libtorrent#289 by @stickz
   • rakshasa/libtorrent#283 by @neheb
   • rakshasa/libtorrent#297 by @neheb

2. Basic padding file support.

   • rakshasa/libtorrent#301 by @kannibalox

3. Fix multifile handling.

   • rakshasa/libtorrent#303 by @kannibalox

4. Macos fixes.

   • rakshasa/libtorrent#304 by @rakshasa

5. Thread-safe / preparation for multi-threaded trackers.

   • rakshasa/libtorrent#305 by @rakshasa
   • rakshasa/libtorrent#310 by @rakshasa
   • rakshasa/libtorrent#312 by @rakshasa
   • rakshasa/libtorrent#316 by @rakshasa
   • rakshasa/libtorrent#322 by @rakshasa
   • rakshasa/libtorrent#324 by @rakshasa
   • rakshasa/libtorrent#325 by @rakshasa
   • rakshasa/libtorrent#326 by @rakshasa
   • rakshasa/libtorrent#329 by @rakshasa

6. Updated list of peer IDs.

   • rakshasa/libtorrent#313 by @PiloUnk

7. Fix undefined behavior in extents::insert.

   • rakshasa/libtorrent#319 by @nmeum

8. Don't free memory not allocated by getaddrinfo(3) with freeaddrinfo

   • rakshasa/libtorrent#320 by @nmeum

9. Fix pthread_setname_np race condition in thread_base::event_loop

   • rakshasa/libtorrent#321 by @nmeum

10. Fix invalid memory accesses on exit

• rakshasa/libtorrent#331 by @jmakovicka

1. Thread-safe DNS resolver

• rakshasa/libtorrent#334 by @rakshasa

1. Option for enabling f/madvise random.

• rakshasa/libtorrent#335 by @rakshasa

rtorrent

1. Support for colors.

   • #1369 by @kannibalox

2. Add JSON-RPC capability.

   • #1373 by @kannibalox

3. Lua support.

   • #1380 by @kannibalox

4. Close low diskspace normal.

   • #1383 by @rakshasa

5. Fix various macos issues.

   • #1390 by @rakshasa

6. Added new tracker list commands.

   • #1418 by @rakshasa

7. Fix possible crash with save_input_history.

   • #1419 by @chros73

8. Added 'system.files.session.fdatasync' config option.

   • #1426 by @rakshasa