Release Notes - SABnzbd 5.0.1

In this fifth major release of SABnzbd, we included:

Smarter (and potentially faster) downloads with NNTP Pipelining and Direct Write.
Reliability gains from a reworked cache and safer processing.
A significant number of bug fixes and platform updates.

Bug fixes in 5.0.1

Queued downloads from older versions did not load after updating.

New features in 5.0.0

Added support for NNTP Pipelining which eliminates idle waiting between
requests, significantly improving speeds on high-latency connections.
Read more here: https://sabnzbd.org/wiki/advanced/nntp-pipelining
New servers will have Articles per request set to 2 by default.
Existing servers need to be manually changed to use NNTP Pipelining.
Implemented Direct Write to optimize assembly of downloaded files.
Read more here: https://sabnzbd.org/wiki/advanced/direct-write
Post-processing scripts will always be executed, even for failed jobs.
Make sure to check the status of the job in your scripts!
Removed Special setting empty_postproc as it is no longer needed.
Complete redesign of article cache.
Improved disk speed measurement in Status window.
Reduced delays between jobs during post-processing.
Improved handling of disks getting full.
Diskspace check will now include Category-specific folders.
If a download only contains .nzb files, the new downloads
will include the name of the original download.
No longer show tracebacks in the browser, only in the logs.
Dropped support for Python 3.8.
Windows: Added Windows ARM (portable) release.
Windows and macOS: Added HTML version of the Release Notes.
Windows and macOS: Updated Python to 3.14.4, Unrar to 7.20,
par2cmdline-turbo to 1.4 and 7zip to 26.00.

Bug fixes in 5.0.0

Check before download could get stuck or fail to reject.
Several stability changes for the core download process.
If only par2 files were missing, jobs could get incorrectly aborted.
No error was shown in case NZB upload failed.
Correct mobile layout if Full Width is enabled.
Handle passwords that exceed Unrar's password limit.
Aborted Direct Unpack could result in no files being unpacked.
Encrypted RAR detection could sometimes fail.
Unwanted extension check was unreliable on passworded downloads.
No longer exclusively lock all directory operations.
Improved handling of non-NFC unicode filenames.
Sorting of files inside jobs was inconsistent.
Linux: No longer break test-data in the release package.
Windows: Tray icon disappears after Explorer restart.
macOS: Slow to start on some network setups.

Changes to default settings for new installations in 5.0.0

Default Minimum Free Space for Temporary Download Folder set to 500M.
Enabled verify_xff_header setting by default.

Upgrade notices

You can directly upgrade from version 3.0.0 and newer.
Upgrading from older versions will require performing a Queue repair.
Downgrading from version 4.2.0 or newer to 3.7.2 or older will require
performing a Queue repair due to changes in the internal data format.

Known problems and solutions

Read ISSUES.txt or https://sabnzbd.org/wiki/introduction/known-issues

Code Signing Policy

Windows code signing is provided by SignPath.io using a SignPath Foundation certificate.

About

SABnzbd is an open-source cross-platform binary newsreader.
It simplifies the process of downloading from Usenet dramatically, thanks to its web-based
user interface and advanced built-in post-processing options that automatically verify, repair,
extract and clean up posts downloaded from Usenet.