I think incompatible models would warrant at least an increase in the minor version number (1.8.x) if not even in the major version number...
If they can be reformatted from the binary versions (i.e. without retraining), if would be great if OpenNLP would include a migration tool. Mind this does not only affect the models on Sourceforge, but also models that people might have at home or at their institutions but for which they no longer have the corpus data or there are other reasons why it would be difficult for them to retrain them... Cheers, -- Richard > On 28.01.2017, at 05:17, Russ, Daniel (NIH/CIT) [E] <dr...@mail.nih.gov> > wrote: > > Hello, > > With the release of OpenNLP 1.7.3, the GISModel serialization will not be > backwards compatible with the pre-1.7.3 format. I am particularly concerned > with the models on SourceForge, because I still use them. They may not be > the best models, but they work fairly well and are easily available. I think > we should reformat the old models in the new format, and place the new models > on an OpenNLP branded website (e.g Sourceforge, github, apache website). > > Daniel >