The term "patched" suggests that the file has been modified or updated in some way. In the context of media files, patching could refer to corrections of errors, updates to the content, improvements in encoding, or fixes to existing issues such as subtitle sync problems.
identifier, this is an Adult Video (AV) production from Japan featuring the actress Yua Mikami . It was originally released around January 2019 cawd365 engsub015829 min patched