These were mostly resolved in subsequent point releases (1.2.3 and 1.2.4), but if you are locked to 1.2.2.0 due to distribution constraints, be aware.
Version arrived shortly after the initial 1.2.0 release. While 1.2.0 was revolutionary, it carried bugs—especially in the new disk cache and the handling of magnet links. Version 1.2.2.0 acted as the "stabilization patch." It was the version many Linux distributions (like Ubuntu 20.04 LTS) and BSD ports adopted as their default libtorrent package. libtorrent 1.2.2.0
December 2019 Preceded by: 1.2.1.0 Succeeded by: 1.2.3.0 These were mostly resolved in subsequent point releases (1
While not fully complete, libtorrent 1.2.2.0 added partial support for v2 torrents. These use SHA-256 instead of SHA-1 for piece hashing, drastically improving security against collision attacks. The library could read v2 hybrid torrents, though creating them was still rough around the edges. Version 1
In the world of open-source libraries, version is often cited in technical documentation or bug reports when a specific performance regression or compatibility fix is identified. For developers, using this specific version ensures stability for applications that were built and tested against the 1.2.x API before the more radical changes introduced in the later 2.0 (v2) series, which added support for BitTorrent v2 (merkle trees and SHA-256). Conclusion