The Advanced print dialog has new options, each with a matching -print-settings value:

The new PrinterDefaults.Collate setting sets the default of the Collate checkbox, and collate / nocollate control it from the command line (#1558). The print job is named after the file name, not the full path (#2166).

Printing from the command line uses print defaults stored in the PDF itself (scaling, number of copies, duplex, paper tray). -print-settings values override them, and ignore-pdf-print-settings turns them off (#534). -print-to / -print-to-default return a different exit code for each kind of failure, so scripts can tell why printing failed (#3478). -print-dialog now shows the print dialog even when combined with -print-to (#3975).

Save an image as a PDF: right-click an image, or an open image document, and choose Image / Convert to PDF, or pick PDF as the format in the Save Image dialog (#949).

Triple-click selects a whole line of text. Double-click still selects a word (#694).

When you hover over a thumbnail on the Frequently Read home page, a ✕ button in its corner removes that document from the list (#283).

Favorites for files with long names show your favorite’s name before the file name, so the name stays visible (#829). In the Favorites sidebar, the arrow keys move through the list without jumping to each favorite, and Enter opens the selected one (#1936). Clicking the current bookmark again navigates to it (#2465).

For programs that control SumatraPDF through DDE, there are new requests: [GetFileState] (path, zoom, view mode, current page and page count), [GetOpenFiles], [GetMousePos] (document position under the mouse) and [GotoPageWord] (find a word only on a given page). [SetView] accepts zoom 0 to keep the current zoom (#483, #5060, #1411, #3085, #5068). Toggle commands such as CmdToggleFullscreen, CmdToggleToolbar or CmdToggleContinuousView accept an on/off argument, e.g. [CmdToggleFullscreen on] (#5067).