Tribler

This is the fourth release candidate of Tribler 7.5.0 series.

**Changelog:**
- New feature: you can now reset the current view by left-clicking on the active menu item in the left bar.
- Fixed a GUI crash when converting a string value from the settings.
- Removed the option to make Tribler the default client for .tstream files on Windows.
- Fixed various GUI glitches, including an incorrect width of various tables.
- The 'discovered' button in the left menu is now selected when opening Tribler.
- Fixed a bug when removing Tribler on Linux-based systems.
- Fixed a crash when loading an invalid download checkpoint.
- Fixed a bug where incorrect values would be written to the Tribler settings file when running scripts.
- Fixed a bug where the 'add torrent' dialog would not display.
- Fixed a crash when removing circuits.

This is the third release candidate of Tribler 7.5.0 series. It includes a fix for (yet another) "pending task" crash as well as other bugfixes.

This is the second release candidate for the initial release of Tribler 7.5 series. All reported crash-inducing bugs from 7.5.0-rc1 were fixed, including the "pending task" crash and DNS-related crashes.

This is the first release candidate of Tribler 7.5.0 release. It features numerous bugfixes and some performance improvements over the the previous, experimental releases.

v7.5.0-exp4
This is the fourth experimental release of the Tribler 7.5 series. Compared to 7.5-exp3, it fixes a problem with adding downloads through the REST API.

v7.5.0-exp3
This is the third experimental release of the Tribler 7.5 series. It features numerous bugfixes for bugs reported in exp1-exp2 releases. Also, it includes a completely refactored Streaming Video component that is now based on AIOHTTP.

So far, major features introduced in 7.5 series:
* Asyncio-based reactor (improves performance, stability and response times of the Core)
* Nested Channels Core and GUI support. Users can now create and maintain an unlimited number of personal channels with arbitrary sub-tree of "folders" for organizing personal content.
* Home Screen is removed in favour of Discovered screen
* Startup time is greatly improved, along with Channels performance.
* Video streaming works again.
* DHT requests go through Tunnels by default to improve anonymity.

Known issues:
* in a nested channel, a folder's state will be wrongly indicated as "Preview", even though the contents are shown in full;
* seeking a video stream does not always work;

v7.5.0-exp2
This is a second experimental release of Tribler 7.5 series. Aside from switching to Asyncio and Nestec channels introduced in 7.5.0-exp1, this version contains numerous bug fixes and performance improvements.

As usual, it is advised to backup your Tribler state directory before trying it out.

Known problems:
* removing torrent with data does not remove the data;
* in a nested channel, a folder's state will be wrongly indicated as "Preview", even though the contents are shown in full;




v7.5.0-exp1
This is the first experimental release of the new 7.5 Tribler series. It features 2 major changes:
* Nested Channels. Users can now create more than one personal channel. Channels now can feature an arbitrary sub-structure of folders, just like in a real filesystem. Also, the Channels GUI was refactored for speed.
* AsyncIO reactor. Tribler now uses modern AsyncIO reactor instead of the old Twisted framework. This should help with performance and stability.

Overall, the Core of Tribler was heavily refactored for this release.

This is the fourth bugfix release of Tribler 7.4.x series.
It fixes Tribler crashing randomly with `lambda` message. Also, it includes a backport of 7.5 fixes for TorrentChecker SQL queries, which improves performance for people with big Channels databases.

**Changelog:**
* Hacky fix for config upgrading
* Backport TorrentChecker fixes from devel
* Removed set_filepieceranges
* Catch ValueErrors in connect_to_tracker (to deal with invalid urls)
* Fix for checkpoint timeouts
* Fix dir writability check

This is the third bugfix release of Tribler 7.4.x series. It fixes the issue with Tribler stuck at "Checkpointing Downloads" and other problems.

**Changelog**
* Fix PID checking on Windows
* Update IPv8 pointer
* Fix issue in monitor_downloads
* Fix checkpoints getting stuck + speedup shutdown
* Handle ConnectionLost error in version checker
* Fix race condition in GUI videoplayer
* Catch socket errors
* Pass ignore_errors to recursive calls in recursive_unicode
* LooseVersion-based checks in VersionManager
* Fix encoding of encoding attribute in TorrentDef
* Add stricter check for tracker URLs
* Handle HttpError exception in endpoint
* Handle UnicodeDecode error by CategoryFilter
* Handle KeyError exception in resume_download

IMPORTANT NOTE to users who upgraded to 7.4.2 and lost their balance/channel/etc. Our wiki now has [an article on how to fix the problem manually](https://github.com/Tribler/tribler/wiki/Getting-back-your-Tribler-state-dir-after-update-to-7.4.2). But you must do it **before** installing 7.4.3.