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		#1 | 
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			 Junior Member 
			
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				Join Date: Oct 2019 
				
				
				
				Device: Mac Mini mid 2010 OS 10.13.6 
				
				
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				Help -- new Calibre won't work on my OS
			 
			
			
			I saw that there was a new version of Calibre, so I downloaded it. When I went to open it, I got a message that it wouldn't work on my old Mac Mini OS High Sierra 10.13.6  
		
	
		
		
		
		
		
		
		
		
		
		
	
	There's no place on the Calibre site where I can see how to download the last version that worked on my OS. Anyone know what I can do?  | 
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		#2 | 
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			Never mind -- a friend figured it out and sent me a link that had a version that worked for me. How he found it, I don't know... But I'm back in business!
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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		#3 | 
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			How was this version of Calibre built to run on an older MAC OS? Please ask your friend. Also, it would be helpful to post the link.
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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		#5 | |
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		 Quote: 
	
 For users in the OP's situation, the last of the v3.x installers is likely the best choice.  | 
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