No new content (no extra levels, no new slap types) — it’s a stability and polish patch. However, for speedrunners and completionists, it’s considered essential.

Based on the file extension and the naming convention, this is a Nintendo Switch game file (specifically a "Scene" release). The garbled text --39- is a common artifact caused by URL encoding or filesystem formatting where an apostrophe ( ' ) was converted to its ASCII code (39) and wrapped in dashes.