Highlights of this release include:

Lens Size Limit Increase
You asked, and we listened. The Lens size limit is now increased from 4MB to 8MB allowing you to build larger and more complex Lens experiences.
Lens Text Localization
Allow your Lens to be more accessible to the global community with Text Localization. With this update, you can add your own localized text assets to Lens Studio from a JSON file. With Snap Supported Languages, text is guaranteed to render correctly within Snapchat.
Upper Garment Segmentation
Enable multi-person garment segmentation like shirts, vests, coats, hoodies, and dresses. The Upper Garment Segmentation template allows for garments to be designed via drag and drop to allow for limitless creativity and streamlined workflows.
Multi-Object Detection
Utilize Scan’s ML model within SnapML to detect where certain objects appear in the camera and add visual effects. With this model, you can now detect cups, cars, cats, tvs, dogs, potted plants and bottles.
Order Independent Transparency
Enable accurate rendering of complex semi-transparent objects with Order Independent Transparency. Leveraging this feature, overlapping and intersecting transparent objects can now be automatically sorted, creating higher realism and more believable experiences in your Lenses. 
Our latest update provides the intuitive tools for designing complex, new AR experiences at your fingertips. We can’t wait to see what you create. 
- Lens Studio Team
For more information on Lens Studio 4.1, please refer to Lens Studio 4.1 Release Notes.