As for the WebRip version, it's likely that you're referring to a fan-made or unofficial rip of the season, possibly uploaded to file-sharing platforms or websites. However, I couldn't find any specific information about a WebRip version of Season 21.
If you're interested in watching "Neighbours" Season 21, I recommend checking out official streaming platforms, such as Network 10's official website, or purchasing the DVD set. neighbours season 21 webrip
Here is a list of episodes from Neighbours Season 21: As for the WebRip version, it's likely that