Avid Sibelius 8.5.0 Build 552 MacOSX

Inspector:
Part of the overall vision we have for the way you work in Sibelius, looks at minimizing features being hidden away in menus and dialogs, and presenting them in a clean and feature-packed Inspector panel. This will allow you to select an object in the score and see all the properties and possibilities for editing that object. Sibelius 8.5 is our first foray into this, by adding the new Staff size options, and we’ve smartened up the Inspector to give it a clean and modern look.
The main area we’ve improved on is the Text section. To help explain and guide the user, there are now useful graphics to indicate the sorts of things you’re capable of doing to any given piece of text. The other sections have been smartened up to align tick boxes, feature labels and controls to give the Inspector the professional look you have come to expect.
The Inspector now also behaves like other panels. You can invoke it from the Home tab, as before, but also from the View > Panels section of the Ribbon.
The Inspector will appear docked on the left of your main Sibelius window. You can pull this off and dock to on the right, or if you prefer, you can leave it floating; useful if you have a second monitor. When undocked, you can resize the Inspector by dragging out the bottom edge. Sibelius will populate the Inspector with features and controls that are only relevant for the item or items you have selected. For example, the Scale % only appears when you have a Chord diagram selected. The contents of the Inspector will sometimes be too tall for it to contain all the controls, so a scrollbar will appear on the right hand side to allow you to find what you need easily. Each section can be collapsed up too, so you can hide controls you aren’t using at that time.

Multiple staff sizes on breaks:
One such example of driving features and workflows to the Inspector is our new Multiple Staff Sizes feature.
The new control of the staff sizes allows you to change individual bars, whole systems of one or more instruments, large passages of music, or entire pages at a time.

Improvements since Sibelius 8.4:
It’s now possible to change Normal staff size to a smaller value then Medium staff size value in Engraving Rules. Smaller staff sizes all decrease so you can no longer get these out of order.
We’ve made dialog appearance improvements to Engraving Rules > Staves with 200% DPI scaling on Windows with high pixel density displays.
Making a change to a staff size in Engraving rules, and then clicking OK (without having unfocused the staff size spin box) now makes the change in your score.
Tuplet brackets and numbers now scale neatly when working with smaller staff sizes.
Instrument changes from unpitched to pitched instruments now create key signatures automatically.
MIDI input works once more after changing from an unpitched to pitched instrument.
Cancelling out of Document Setup now cancels the unit selection you may have made.
On Retina displays, some text fields in several dialogs are no longer too short, for example in the File tab > Score info dialog.
In Sibelius’ Manuscript plug-in language, note.Deselect() deselects entire parent NoteRest when it should just deselect that note.

Further general improvements:
The version number now briefly appears on the splash screen once more as it did previously in 7.5, so you can quickly verify the version of Sibelius you’re launching on startup.
The Save As dialog on macOS now correctly remembers the current file name and last path saved, so that you don’t have to navigate to the correct location every time.
Sibelius no longer hangs or crashes in rare cases when clicking ‘Music Fonts’ in Edit Symbols.
The Inspector and Timeline panel sizes and positions are now saved along with the other panels. See File > Preferences > Files in the “Windows Sizes and Positions” section. This means that it is now possible to hide the timeline by default just like you can with other panels, which has been a longstanding request since it appeared in Sibelius 7.5.0.
A problem has been fixed where some keyboard shortcuts didn’t work correctly on macOS Sierra.
Sibelius Sounds and Sibelius | First Sounds now correctly install on macOS Sierra.
Application Manager 2.5.11 is now included in the Sibelius and First 8.5 installers.