There are several new features as well as improvement in Aurora HDR 2018 to help you create fantastic images in less time.

User Interface / Performance:

• NEW: Tone-mapping technology with reduced noise, the improved realism of initial results and faster performance re-written from the ground up.
• NEW: Redesigned User Interface
• NEW: History Panel
• NEW: Touch Bar support for MacBook Pro
• IMPROVED: up to 4x faster RAW image processing 
• IMPROVED: up to 2x faster merging 
• IMPROVED: 2x faster masking performance

Editing:

• NEW: Lens Correction tool 
• NEW: Transform Tool 
• NEW: HDR Enhance (replaces Clarity ) for better sharpening and overall results
• NEW: Dodge & Burn Filter 
• NEW: Image Flip & Rotate 
• NEW: Blend Modes 
• IMPROVED: HDR Details Boost tool
• IMPROVED: Tone Mapping Algorithm
• IMPROVED: RAW file handling (reveals more details in shadows/highlights, displays colors more accurately and reduces noise)
• IMPROVED: Custom Texture in any layer can now be a RAW file
• IMPROVED: Color Temperature
• IMPROVED: Image Radiance 
• IMPROVED: HDR Structure
• IMPROVED: Crop tool 

Open / Plug-in / Export:

• IMPROVED: Native RAW file support, including better DNG handling. 
• IMPROVED: Sharpen on export.