The highlights of this major Inkscape version are:
23 Important Inkscape Project Milestones.17.3.1 API Changes for Third-Party Extension Developers.9.13.1 Syntax Highlighting and Monospaced.5.4.3 Better shape preservation when deleting nodes.4.2 Experimental OpenGL (GPU) Accelerated Canvas.
3.9 Pasting Options Renamed, and Paste on.