Check out the following gource videos with the 2021 updates so far for Dash Core and Dash Platform:

One minute OpenGL visualization video showing all Dash Core updates since December 2020. Overview of Dash Core V17 developer commit actions on GitHub:
https://www.reddit.com/r/dashpay/comments/nt43l8/one_minute_opengl_visualization_video_showing_all/

One minute OpenGL visualization video showing all Evolution updates since December 2020. Overview of Dash Platform V17, V18 and V19 developer commit actions on GitHub:
https://www.reddit.com/r/dashpay/comments/nq1ld8/one_minute_opengl_visualization_video_showing_all/