Pathname handling
- Fix file link detection (#1208), tweak URL detection (#1209).
- Restore opening of Windows path names (#1219; broken since 2.8.1).
Terminal features
- Fix setup of initial status line if monitor DPI is 96.
- ESC/Enter restore alphanumeric keyboard input mode while IME is active (#1223).
- OSC 50 query response is "?" after font setting failed.
- Fix DECRQCRA Rectangular Checksum attribute handling.
- Added DECSACE to DECRQSS (xterm 383).
- Optionally indicate keyboard layout code in status line.
- Fix image display (iTerm2 protocol) in "Sixel display mode".
- New DECSET 7780 "Image display mode" to keep cursor position on image output (#1228).
- New parameter doNotMoveCursor for iTerm2-style image output (#1228).
Window handling
- Revamp window operations, esp max/fullscreen, to not raise to foreground.
- Sanitize Alt+TAB behaviour: Group taskbar icons by setting -o Class (#1207).
- Handling transparency in tab sets (#1152, #1069, ~#1128).
- Workaround against dropping fullscreen on DPI change (#1226).
- Preserve "normal position" (unzoomed) during screen changes (~#1226).
Configuration
- New user-definable function compose (#1211).
- New option setting ComposeKey=capslock (#1211).
- New option ConfirmReset to guard confirm dialog on interactive reset (#1173).
- Support changed Drag-and-drop format for some theme file downloads.
- New option KeyAlphaMode (#1223).
- New option -Rw to report the Windows window id.
- New option StatusDebug to include debug information in the status line.