Core

• Don't unload field init values (#1277)
• Handle super case for invokespecial opcode (#1300)
• Improve try/catch bounds detection (#1303)
• Handle move-result after invoke-custom with string concat
• Use correct top block for try blocks with same start (#1304)
• Invoke in nested anonymous classes (#1305)
• Add merged condition blocks for loop region (#1307)
• Add option to use dx/d8 for convert java bytecode (#1299)
• Add comments with option references to improve usability

GUI

• Smali code highlighting (PR #1283)
• Allow to minimize/maximize search windows (#1298)
• Update Quark report parsing (#1289) (PR #1291)
• Forward navigation shortcut on macOS (#1297)(PR #1301)
• Restore usage data after class reload (#1281)
• Include inlined classes in usage search (#1285)
• Add Traditional Chinese translation (PR #1306)
• Update Chinese translation (PR #1284, PR #1287, PR #1296)
• Update German translation (PR #1290)

Download files description:

• jadx-gui-1.3.1-with-jre-win.zip - jadx-gui with bundled JRE
• jadx-gui-1.3.1-no-jre-win.exe - jadx-gui single exe (system JRE must be installed)
• jadx-1.3.1.zip - cross-platform cli and gui bundle (system JRE must be installed)

Also, jadx artifacts now available on maven central repository: view on maven
How to use jadx as a library read on wiki page.