[eigenvector]

Isn't deprecated actually correct here?

It means the feature still works, but will be removed in the future or is no longer supported. There also be may a new implementation of it that the developer would like you to use, hence the warning that it's deprecated.

Depreciation implies a rate of change over time, which isn't the case. Today we deprecate feature X, and in two years we plan remove it. It never depreciates.