v1.1

• Add partial support for variant streams;
• Improve FFmpeg log recognition and suppression; making logging consistent with user-chosen log level;
• Add event hooks for application developers.

v1.0.1

No user-facing changes, only improvements to setup.py.

v1.0

• Back up original file in --force mode, and only remove it after a successful download and merge.

v1.0b7

• Batch manifest: allow comments (starting with #) and BOM (which Notepad forces unto every UTF-8-encoded file).
• Do not send Range header for full range (fixes rare HTTP 416 issues with certain servers).

v1.0b6

• Fix logging level of download workers on Windows.

v1.0b5

• Introduce --progress and --no-progress options (independent of logging verbosity).

v1.0b4

• Improve missing FFmpeg error handling;
• Improve SIGINT and SIGTERM handling (more graceful).

v1.0b3

• Introduce builtin retry (number of times can be controlled via -r, --retries option);

• Introduce --workroot <path> for specifying an alternative virtual filesystem root for all processing, from downloads to final merging. Use cases: destination on a slow HDD (where all the intermediate FFmpeg reads and writes take very long, or even downloads cannot saturate bandwidth due to disk bottleneck), with workroot on a fast SSD; destination on a networked drive, with workroot on a local drive; etc.

v1.0b2

• Introduce --remove-manifest-on-success option.

v1.0b1

The first, and maybe final beta of v1.0. We are on the 1.0 release track now. If I don't find any problems in the next few days, this beta will be promoted to 1.0.

New features:

• Use server timestamp (Last-Modified header if provided, followed by Date header if provided) for the output file's mtime.
• Introduce -e, --exist-ok option for batch mode to suppress errors for existing files.

Breaking changes:

• All on-disk files are now read and written in UTF-8. chardet (ill-conceived in the first place) has been completely banished. See https://git.io/caterpillar-encoding if you enjoy Microsoft rants.
• macOS: config file location now follows XDG BaseDir Spec if (and only if) XDG_CONFIG_HOME is set and non-empty.