32-bit executable files in Zotero 5.0 for Mac
I see that in Zotero 5.0.81 for Mac that the 2 files ~/'Library/Application Support/Zotero/'{pdfinfo-MacIntel,pdftotext-MacIntel} are both still 32-bit. I was wondering what the implications of this are that macOS Catalina will not run 32-bit executables and if they should not be compiled as 64-bit?
If you've been using Zotero for a while, there would still be older executable files in the Zotero data directory, and if for some reason Zotero 5 was unable to migrate your data directory, it could still be located at ~/Library/Application Support/Zotero/Profiles/[random].default/zotero. If that's the case, you should move that to ~/Zotero (capitalized). (Zotero would only not have migrated that in rare situations — you had multiple data directories, you already had something at ~/Zotero, security software prevented it from moving the directory, the old data directory was symlinked or on external drive…)
If you're actually seeing these files at the path you gave, you likely moved them there yourself manually and should delete them.
Old executables in the active data directory will be deleted automatically in a future version, but there's no harm in deleting them manually if you want to.