PaletteApp 2.5.0 and later are tested to be compatible with Adobe's CC 2019 app updates.
Please ensure when updating Lightroom that you choose Lightroom Classic CC v8.0; see this article for full details on the various Lightroom versions available.
Fixed as of PaletteApp 2.5.1—Please update
You may encounter the following message when first running PaletteApp after the update:
"Adobe Extension could not be installed. Please install Adobe Photoshop CC"
Please be advised that this message is displayed in error and that your Adobe apps will continue to function with Palette as they did on the CC 2018 versions. To clear this message, please update to PaletteApp 2.5.1
Enabling Adobe Integrations
If your Palette kit is unable to connect to your desired Adobe CC applications, please refer to our instructions to enable Palette + Adobe Integrations.
If problems persist, please contact our support team.