I read a nice article about how the password can be less safe against the past and how the progress helped the increased ability to crack passwords of varying lengths and complexities. Here an interesting extract of this article:
"As an example of this in the last book, written in 2010, an 8 character password made up of both upper and lower case letters, numbers and symbols would have taken 2.25 years to crack. The same password now would take just 57 days."
In the table below you can see the password complexity Vs Time to discover the password using the brute force :
Source: How Secure is Your Password?