Preview 1.2 fails to launch in OS X 10.9.5

RStudio Desktop Preview 1.2.997 fails to launch:

Process: RStudio [8256]
Path: /Applications/RStudio 3.app/Contents/MacOS/RStudio
Identifier: org.rstudio.RStudio
Version: ???
Code Type: X86-64 (Native)
Parent Process: launchd [143]
Responsible: RStudio [8256]
User ID: 501

Date/Time: 2018-09-20 13:30:23.838 +0100
OS Version: Mac OS X 10.9.5 (13F1911)
Report Version: 11
Anonymous UUID: 8A244519-281C-1340-D88B-EDFA7EC88197

Sleep/Wake UUID: 929A3C27-E837-4395-85CB-9B6AE398F795

Crashed Thread: 0

Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000

Application Specific Information:
dyld: launch, loading dependent libraries

Dyld Error Message:
Library not loaded: /System/Library/Frameworks/CoreBluetooth.framework/Versions/A/CoreBluetooth
Referenced from: /Applications/RStudio 3.app/Contents/Frameworks/QtWebEngineCore.framework/Versions/5/QtWebEngineCore
Reason: image not found

Sorry, but we will only be supporting macOS 10.11 and above with RStudio v1.2. 10.9 (Mavericks) is quite old now; I'd recommend updating your OS if at all possible.

OK – but you should change your web page that states for the Desktop Version Installers:

"RStudio 1.2.981 - Mac OS X 10.6+ (64-bit)"

This misled me...

We'll take care of that when we publish the next Preview release; thanks for spotting that.