An empty zip file is completely valid, but the current mod_zip syntax does not support them. This comes up in cases where e.g. a user clicks "Download this folder" - and the backend needs to special-case empty folders and use different code to generate an empty .zip file.
This is technically a breaking change - though the documentation does not say anything about trailing line breaks, and it seems unlikely that anyone would actually rely on the last line break being optional.
An empty zip file is completely valid, but the current mod_zip syntax does not support them. This comes up in cases where e.g. a user clicks "Download this folder" - and the backend needs to special-case empty folders and use different code to generate an empty .zip file.
This is technically a breaking change - though the documentation does not say anything about trailing line breaks, and it seems unlikely that anyone would actually rely on the last line break being optional.