Asking what version of a tool was used, actually reveals a lot about the candidate. It's not about knowing if you know the exact same version as the company. F

Asking what version of a tool was used, actually reveals a lot about the candidate. It's not about knowing if you know the exact same version as the company. First probe is if the candidate doesn't have slightest clue what version they were using, that's a big red flag. This is more common than you would believe. Second probe, candidate knows, but they only used a 25 year old version (also more common than you would believe when it comes to c++), this can be a warning flag that they are not interested in learning new things. But doesn't have to be if it was company policy, which is also interesting if they were in position to change this. Third probe, ask follow up questions on differences since version N-1, this shows if candidate is staying up to date with latest trends or not.