[Draft] Mixxx 2.4 press information / release blogpost

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

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+title: Mixxx 2.4 Release
+authors: Mixxx Team
+status: draft
+tags: release, 2.4
+comments: yes
+
+
+We are proud to announce Mixxx 2.4, which will be released TKTKTKTKTKTK, a new major version of our free open source DJ software. It took about two years since the last release due to the large number of new features and changes under the hood.
+
+The 2.4 release includes the following highlights:
+
+### EngineOS export
+Mixxx 2.4 adds support for exporting crates, playlists and the library to Engine DJ OS devices (Denon and Numark standalone controllers).
+@Video(https://www.youtube.com/watch?v=Qle9Y1KdD2Y)
+This lets users prepare their tracks on a laptop using Mixxx and export them to a USB stick for use on a standalone controller at their gig.
+
+### Saved Loops
+Mixxx 2.4 adds support for Saved Loops
+If you already have tracks with Saved Loops from Serato DJ, Mixxx 2.4 will automatically read them from the track metadata.
+
+@Video(https://www.youtube.com/watch?v=f8hI_uv9zHY)
+
+### Effects
+Mixxx 2.4 introduces Effect Chains, a set of effects which can be saved and reloaded with all its parameters and their individual Meta Knob mapping. Effect Chains can also be exported and imported, which allows to share them with others.
+Once you've created an Effect Chain, you can define individual Super Knob mappings which allows to use it as Quick-Effect, where you take creative control with a single knob. Effect parameters can be reordered and or hidden.
+In the effect units, Mixxx 2.4 also displays value and unit of effect knob parameters while they are being adjusted.
+
+### Track Menu
+The track menu in Mixxx 2.4 is extended by several new features:
+
+- Select loaded track in library
+- Analyze/re-analyze with variable/constant BPM on a per-track basis
+- Looking up track metadata at Discogs, Soundcoud and LastFM
+- Remove track files from disk
+
+### Sync
+Mixxx 2.4 adds support for choosing the sync leader by clicking 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.
+@Video(https://www.youtube.com/watch?v=REiG8DBKr-M)
+
+### Many other changes
+
+##### Soundstretcher / Key-Shift Algorithms
+Mixxx 2.4 now supports three different key shift algorithms:
+
+- Soundtouch (Basic audio quality - medium CPU usage)
+- 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
+ES7 based controller mapping system.  
+HID backend rework.
+
+## Mixxx 2.4 Factsheet
+
+#####Supported platforms:
+- Windows 7 or later on x86_64 ("x64") processors
+- macOS 10.12 or later on x86_64 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 129 MIDI controllers included
+- Mappings for 16 HID controllers included
+see the [full list](https://manual.mixxx.org/2.4/hardware/manuals#controllers) of supported controllers in the Mixxx Manual
+
+
+
+## Media information
+Test builds of Mixxx 2.4 can be found here before the final release:  
+[https://mixxx.org/download/#beta](https://mixxx.org/download/#beta)
+
+The manual for Mixxx 2.4 can be found here:  
+[https://manual.mixxx.org/2.4/en/](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](https://mixxx.org/press/logo)
+
+Full-Resolution images of the Mixxx 2.4 screenshots above can be downloaded here:  
+[https://mixxx.org/TKTKTKTKTKTK](https://mixxx.org/TKTKTKTKTKTK)
+
+#####Press contact
+Feel free to contact us via:  
+[[email protected]](mailto:[email protected])