SL73SL88SL88 GT
Firmware## Installation
1. [Connect the SL to Numa Player](/support/articles/anp4255/#sl-submk2sub-connection).
2. Wait until the new firmware version is recognized.
3. Press **Install**
During installation, SL automatically restarts in *update mode*. If this does not happen, switch on the instrument while pressing the **App button**
## Release notes
### 1.0.9
- Improved MIDI IN (DIN) messaging
- In MIDI 2.0 mode the SL is now compatible with MIDI 1.0 software
- Changing the Program Change in a zone now sends also BANK LSB and MSB messages
### 1.0.8
- SL-Link Protocol Update. This firmware adds compatibility with Camelot, enabling full integration between the SLMK2 and Audio Modeling software.
### 1.0.7
- Stick1 can now be assigned both globally and in the zone.
- New velocity management for “note off” MIDI message.
### 1.0.6
- Fixed an issue that could cause unexpected reboot during a Factory Restore.
### 1.0.5
- Improved Aftertouch timer and threshold.
- Fixed MERGE Function with MIDI clock F8 present.
- Increased MERGE input event handling to avoid hanging notes.
- Enabled ZONE Velocity Curves previously inactive.
- Added automatic refresh in case of a system block.
- Global *MIDI MODE* now saved at power off.
- Fixed a subtle hi-frequency when dimming the display.
### 1.0.4
- Renamed the `MIDI 2 HIGH RES` setting to `USB MIDI MODE` and added `MIDI 1.0` option that disables 2.0 mode entirely.
- Renamed `SPECIAL` to `SLP3-D` in pedal 3 setting.
- Fixed hanging notes when using transpose and zone octave shifts.
- Fixed behavior of global and zone transpose and zone octave shifts.
- Fixed a bug where Aftertouch messages were filtered out in MIDI merge.
### 1.0.3
- Fixed an issue that could prevent the MIDI merge DIN to USB from working correctly.
### 1.0.2
- The sound board function can now be disabled from Global Settings.
- Fixed an issue that could prevent Pedal 1 from activating properly.
### 1.0.1
- New home screen icons.
- Fixed an issue that prevented some MIDI messages from being assigned to stick 2.
- Improved DAC performance.
### 1.0.0
Initial release