[Draft] Mixxx 2.4 press information / release blogpost

content/news/XX-XX-XXXX-mixxx-2-4-0-features.md

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+title: Mixxx 2.4 Release
+authors: Jörg Wartenberg
+status: draft
+tags: release, 2.4
+comments: yes
+
+
+
+## Mixxx 2.4
+
+Mixxx 2.4 is our next major release shipping the work of 2 years continuous development on features, code refacturing and bug fixing.
+
+### EngineOS export
+Mixxx 2.4 adds support for exporting crates, playlists and the library to Engine OS devices ( Denon and Numark standalone controllers).
+This allows users to prepare their tracks on a laptop using Mixxx, export them on an USB stick and plug it to the standalone controller at your gig.
+
+### Saved Loops
+Mixxx 2.4 adds support for Saved loops
+If you have already tracks with Saved Loops defined by Serato DJ, Mixxx 2.4 will automatically read them from the track metadata.
+
+
+### Effects
+Mixxx 2.4 introduces Effect Chains, a set of effects with parameters which can be saved and loaded with all it's parameters.
+In the effect units, Mixxx 2.4 visualizes these effect parameter by value, unit and knob position.
+If you've defined an Effect Chain, you can also load it as Quick-Effect, where you have only one knob to control.
+
+### Sync
+Mixxx 2.4 adds support to set an explicit leader for sync, by click on the new button with the crown symbol next to the Sync button.
+This mode is useful when tracks have variable BPM and sync is enabled, all the decks will follow the changing BPM of the sync leader.
+
+### Track Menu
+The track menu in Mixxx 2.4 is extended by several new features:
+-An action to select loaded track in library
+-An action to analyze/re-analyze with variable/constant BPM on a per-track basis
+-An action for looking up track metadata at Discogs, Soundcoud and LastFM
+-An action to remove track files from disk
+
+### Many other changes
+
+#### Soundstrecher / Key-Shift-Algorithms
+Mixxx 2.4 supports now 3 alternative Key-Shift-Algorithms
+- Soundtouch (Basic audio quality - high performance)
+- Rubberband R2 (High audio quality - higher CPU usage)
+- Rubberband R3 (HIFI audio quality - very high CPU usage)
+
+#### Major rework of the Waveform Rendering code
+Solves some long lasting performance issue, especially on macOS.
+
+#### Native macOS ARM builds for M1/M2 Apple silicon
+
+#### Controller Backend
+ES6 based controller mapping system
+HID backend rework
+
+## Mixxx 2.4 Factsheet
+
+Supported platforms:
+- Windows7 or later on x64 processors
+- macOS 10.12 or later on x64 processors
+- macOS 11.0 or later on ARM processors (M1/M2 Apple silicon)
+- Ubuntu Linux 20.4 or later (other Linux distributions are supported by third-parties)
+
+Supported controllers:
+- Mappings for 100 MIDI controllers included
+- Mappings for 100 HID controllers included
+
+
+
+## Media information
+Test builds of Mixxx 2.4 can be found here before the final release:
+https://mixxx.org/download/#beta
+
+The manual for Mixxx 2.4 can be found here:
+https://manual.mixxx.org/2.4/en/
+
+Images for media use
+High-Resolution images of the Mixxx logo can be downloaded here:
+https://mixxx.org/press/logo
+
+Full-Resolution images of the Mixxx 2.4 screenshots above can be downloaded here:
+https://mixxx.org/tbd
+
+Press contact
+Feel free to contact us via:
+[email protected]