I've uploaded a 3.8.15b4U to my idisk and ftp site.

http://www.smalltalkconsulting.com/squeak.html

Most importantly this contains a fix to ensure that the new browser  
plugin interface works when the
image is in 16bit mode and the window size choosen by the plugin is  
changed.


3.8.15b4	
			sqMacUnixFileInterface.c
				Memory leak issue,  PathToFileViaFSRef  was not freeing mutable  
string.
					Free nav services dialog, cleanup  that routine a bit more. 			
			sqMacEncoding.c
				Memory leak issue, SetImageNameViaCFString not freeing  
imageNameString

			sqMacMain.c
				Add cocoInterfaceForTilda to invoke cocoa interface properly for  
tilda resolving, to avoid
				msg in console log about forgetting to free nsstring.
			
			sqMacNSPluginUILogic2.c
				Ensure SharedBrowserBitMapContextRef is freed early in process of  
rebuilding to minimize
				race conditions.

			sqMacWindowUniversal.c
				In ioShowDisplayOnWindow be a bit more paranoid if drawing  
surface exists.
				In copy124BitsTheHardWay, cleanup a bit because of a bug Bert  
found where in a browser
				headless app the virtual window size is changed. however the  
original code asks the hidden
				window what it's size is after being resized, but the VM has  
already see the new size, so 				
				copy124BitsTheHardWay is using stale information, and we're  
hosed. Really we want to
				use information from the ioShowDisplayOnWindow about the drawing  
size, and ignore what
				size the window is because that's not important.

--
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John M. McIntosh <johnmci at smalltalkconsulting.com>
Corporate Smalltalk Consulting Ltd.  http://www.smalltalkconsulting.com
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