qBittorrent 4.3.0.1 [Update]

qbittorrent

The qBittorrent project aims to provide a Free Software alternative to µtorrent. qBittorrent is an advanced and multi-platform BitTorrent client with a nice user interface as well as a Web UI for remote control and an integrated search engine. qBittorrent aims to meet the needs of most users while using as little CPU and memory as possible. qBittorrent is a truly Open Source project, and as such, anyone can and should contribute to it.

qBittorrent features:

Polished µTorrent-like User Interface
Well-integrated and extensible Search Engine
Simultaneous search in most famous BitTorrent search sites
Per-category-specific search requests (e.g. Books, Music, Movies)
All Bittorrent extensions
DHT, Peer Exchange, Full encryption, Magnet/BitComet URIs, ...
Remote control through a Web user interface
Nearly identical to the regular UI, all in Ajax
Advanced control over trackers, peers and torrents
Torrents queueing and prioritizing
Torrent content selection and prioritizing
UPnP / NAT-PMP port forwarding support
Available in ~25 languages (Unicode support)
Torrent creation tool
Advanced RSS support with download filters (inc. regex)
Bandwidth scheduler
IP Filtering (eMule and PeerGuardian compatible)
IPv6 compliant
Available on most platforms: Linux, Mac OS X, Windows, OS/2, FreeBSD

qBittorrent 4.3.0 release notes:

Theming support has been enhanced but previous theme bundles will not work properly with this release. Please contact the theme provider for a fix. The new format is described here.
If you want faster tracker announce rate or are having a slower client exit(compared to 4.2.x) then you may try increasing the Max concurrent HTTP announce limit from advanced settings.
The latest version of libtorrent used contains many important fixes compared to the last one, including memory leaks and speed issues due to wrong caching logic on Windows.
Qt 5.15.1 is used which offers far better HiDPI support. However, the torrent context menu will close after each tag selection.
Brave users can download experimental builds from "Actions CI" on github.

qBittorrent 4.3.0 changelog:

FEATURE: Many UI elements colors are themeable now (jagannatharjun)
FEATURE: Allow changing GUI icons from theme bundles (jagannatharjun)
FEATURE: Notify user when torrent moving finished (glassez)
FEATURE: Shortcut CTRL + I opens Statistics window (LoopsGod
FEATURE: Add RSS functionality in Web UI (Sepro)
FEATURE: Drop ".unwanted folder" feature (glassez)
FEATURE: Expose libtorrent peer_turnover, max_concurrent_http_announces, no_connect_privileged_ports settings (Sophist, an0n666, NotTsunami)
BUGFIX: Fix typo in Options dialog (Andrei Stepanov)
BUGFIX: Remove "requires restart" from network interface settings (an0n666)
BUGFIX: Rename "Create subfolder" to "Keep top-level folder" (thalieht)
BUGFIX: Show tooltip for some properties in transfer list (Nick Korotysh)
BUGFIX: Fix calculation of torrent current state (glassez)
BUGFIX: Improve detecting completed files when adding, rechecking or moving a torrent (glassez)
BUGFIX: Fixed broken announce logic in embedded tracker causing failures in some cases (FranciscoPombal)
BUGFIX: Disable checkbox if torrent doesn't have root folder (thalieht)
BUGFIX: Update country flag icons with upstream (Chocobo1)
BUGFIX: Private torrent: If tracker entry is edited clear old peer list. Also don't allow user to manually add peers. (an0n666)
BUGFIX: Fix large strings not visible in log widget (jagannatharjun)
BUGFIX: Disable edit action in Peer list widget (Chocobo1)
BUGFIX: Add a scroll area to torrent creator dialog (Ernesto Castellotti)
BUGFIX: Content tab: Open double-clicked folder regardless on which column the click happens (Chocobo1)
BUGFIX: "Open containing folder" on a folder now opens it in its parent folder (Chocobo1)
BUGFIX: Fix GeoDB download in systems with non-C locales (FranciscoPombal)
BUGFIX: Fix peer blocked message (FranciscoPombal)
BUGFIX: Make more robust the banning of selected peers from the list (NotTsunami)
BUGFIX: Use toned green color for downloading pieces in Pieces bar (jagannatharjun)
BUGFIX: Correctly fill whole width of speed graph (jagannatharjun)
BUGFIX: Fix impossible speed in speed graph (jagannatharjun)
WEBUI: Hide additional search filters on small screens (Thomas Piccirello)
WEBUI: Shrink search bar on small screens (Thomas Piccirello)
WEBUI: Fix search categories only working in English (Thomas Piccirello)
WEBUI: Add Trackers section to sidebar (Thomas Piccirello)
WEBUI: Fix Enter button behavior in textarea (Tom Piccirello)
WEBUI: Fix wrong file renaming selection range (MR)
WEBUI: Preselect "Default save path" in watched folders (thalieht)
WEBUI: Fix banning peers (brvphoenix)
WEBUI: Fix seeding time checkbox placement (Chocobo1)
WEBUI: Bump Web API version (Thomas Piccirello)
RSS: Fix renaming RSS autodownload rule (glassez)
RSS: Fix RSS article is not marked as "read" when torrent is downloaded (glassez)
SEARCH: Update minimum Python version to 3.5.0 (ngosang)
SEARCH: Make middle-click close search tabs (Will Da Silva)
WINDOWS: NSIS: Update Dutch translation (Thomas De Rocker)
WINDOWS: NSIS: Change the installers uninstallation question to clear confusion (an0n666)
LINUX: Fix typo in systemd service file (Shane Allgeier)
LINUX: Don't use HTML in tray tooltip (thalieht)
LINUX: Don't create 'data' subdirectory in XDG_DATA_HOME (lbilli)
LINUX/MACOS: Add HTTPS tracker certificate validation option (NotTsunami)
OTHER: Many CMake improvements (FranciscoPombal)
OTHER: Support for libtorrent 1.1.x is dropped (Chocobo1)
OTHER: Many code cleanups and improvements (FranciscoPombal, Chocobo1, glassez)

Changes in qBittorrent 4.3.0.1:

This is a minor release to address crashes on Windows related to torrents with URL seeds (HTTP Sources in the qbittorrent window). These crashes were exposed due to boost 1.74. Boost 1.73 doesn't have this problem. However, libtorrent also fixed the issue on their end so the Windows installers use the newer libtorrent code. The rest of the release is almost the same as v4.3.0. Since other platforms weren't affected only Windows builds will be made available for this version.

v4.3.0.1 changelog: