xcode documentation

I'm doing a bit of hard-drive spring-cleaning. I have just under 6G of developer documentation under ~/Library/Developer/Shared/Documentation/DocSets with dates from 2013 - 2015. Is this likely to be obsolete for Xcode (I'm still running Xcode 12.4) and can I delete these files?

% ls -l 
total 0
drwxr-xr-x  3 peterhull  501    96 19 Sep  2013 Library
drwxr-xr-x  3 peterhull  501    96 10 Aug  2013 com.apple.ADC_Reference_Library.DeveloperTools.4_6.docset
drwxr-xr-x  3 peterhull  501    96 10 Aug  2013 com.apple.adc.documentation.AppleOSX10_8.CoreReference.docset
drwxr-xr-x  3 peterhull  501    96 10 Aug  2013 com.apple.adc.documentation.AppleiOS6.1.iOSLibrary.docset
drwxr-xr-x  3 peterhull  staff  96  6 Mar  2015 com.apple.adc.documentation.OSX.docset
drwxr-xr-x  3 peterhull  staff  96  8 Apr  2015 com.apple.adc.documentation.Xcode.docset
drwxr-xr-x  3 peterhull  staff  96  8 Apr  2015 com.apple.adc.documentation.iOS.docset
drwxr-xr-x  3 peterhull  staff  96 20 Sep  2015 com.apple.adc.documentation.watchOS.docset