Version 0.59 is available upstream. Please consider updating!
It seems that version 0.59 is available upstream, while the latest version in the Gentoo tree is 0.58. You think this warning is false? Read more about it here.
CRF++ is a simple, customizable, and open source implementation
of Conditional Random Fields (CRFs) for segmenting/labeling
sequential data. CRF++ is designed for generic purpose and will be
applied to a lot of NLP tasks, such as Named Entity Recognition,
Information Extraction and Text Chunking.