It seems you’re asking about a “specific version” but didn’t mention which product, software, or item you are referring to.
Here are the most common ways to find specific version numbers based on context, based on this video and this discussion:
Software/Apps: Go to the Help > About menu or Settings > About to see the version number (e.g., 2.1.0).
Windows OS: Type winver into the search bar or press Windows Key + R and type winver to see your build number.
Physical Media (CDs/Vinyl): Look for the matrix/runout text (the text in the inner ring) and enter it into Discogs.
Code Libraries: Use a package manager (e.g., npm list, pip show) to see the specific installed version.