Ncurses 6.6 was released today prior to closing out 2025. This programming library update for creating terminal-based text user interfaces (TUIs) features a variety of great improvements for ending out the year.
Ncurses 6.6 remains source compatible with Ncurses 6.5 and versions going back to v5.0. A big focus with Ncurses 6.6 is on enhancing the MinGW / Windows Terminal driver. The modern Windows Terminal driver for Ncurses that has been in development the past half-decade has seen a variety of improvements to the terminal driver code.
Ncurses 6.6 also improves its terminal mouse driver, improved error handling, added more null pointer checks throughput its codebase, terminal database updates, and other smaller fixes and improvements.
Downloads and more details on the Ncurses 6.6 release via the mailing list announcement.