This release provides liquidsoap assets before they are published as a new versioned release.

You can use it to install the latest stable code before it is published and test/prepare your production environment for it.

Rolling releases can also be useful for us to quickly detect and report bugs before the final published release!

⚠️ Warning ⚠️
Assets in this release will be deleted. If you are looking for permanent links to release assets, please head over to https://github.com/savonet/liquidsoap-release-assets/releases

For more details about our release process, please checkout https://github.com/savonet/liquidsoap#release-details

2.4.0 (2025-09-01)

New:

Allow destructing function arguments using the same patterns as for
variable assignment (#4562)
Enhanced labeled arguments syntax (#4526)
Add warning when erasing top-level variables (#4518)
null can now be used directly without having to call null().
null(value) calls are still valid and can be used to create
non-null values with nullable types. Calls to null() are marked
as deprecated (#4516)
Added liquidsoap.script.path that contains the path to the current
script's file, if available.

BREAKING: Most callbacks have been moved to source methods and are now
executed asynchronously by default. See migration notes for all the
details.
BREAKING: Added new file-to-file external decoder.add API. This
makes it much easier and safer to write external decoders (#4531)
Deprecated insert_metadata, added default insert_metadata method on
every source (#4541)
Added client certificate support to http.transport.tls (#4589, @DelilahHoare)

Added cron.parse, cron.{add,remove} and a cron thread
to allow registration of cron-like asynchronous tasks (#4579)
Added LUFS-based per-track loudness correction (#4545)

BREAKING: Error methods have been removed by default.
Use error.methods to get them! (#4537)
Make sure that let { foo = gni } = v assigns a value to
gni but not to foo (#4561)

Turned initial memory compaction on by default. This
has show to greatly reduce initial memory consumption.
Improved source and clock naming (#4497)
Support for ImageLib has been removed. The library is not
maintained anymore and causes issues with dangling external
processes (#4595)

Deprecated replaygain operator, introduced unified
normalize_track_gain which works with both ReplayGain
and LUFS (#4545)

Fixed issues with autocue start_next. This brings autocue's behavior
inline with its expectation but can change existing script's output (#4605)
Fix error when loading script path having non-ascii characters in them
(#4343)
Fix concurrent inline encoders (#4638)
Fix error with interactive variables (#4592, @myeungdev)
Prevent concurrent reload and request fetch in playlists (#4316)
Don't mark source as ready until their clock has started. (#4496)
Fixed mutex deadlock caused by aggressive inlining (#4540)
Fixed segfault when using SRT on windows (#4538)
Fixed memleak in ffmpeg inline encoder (#4501)
Fixed tmp: protocol logic (#4544)
Fixed dangling file descriptors with file.*.stream (#4639, reported by @limebar)