Upgrading from lucene 2.9.1 to 5.X

Hi there, We are using lucene 2.9.1 in our product and thinking of upgrading to 5.X. Is it plausible? Is the file format compatible? Is there any guide document that can give tips on how to do it? Thank you very much Best Regards --- Shuangyang Yang linkedin.com/in/everyoung

Re: Upgrading from lucene 2.9.1 to 5.X

Erick, Amish, Thank you very much for your reply. They are really helpful. Can you tell me what are the compelling features from 2.9.1 to 5.X? I¹m sure there are many. Thank you very much Best Regards --- Shuangyang Yang linkedin.com/in/everyoung On 7/16/15, 8:41 PM, "Erick Eri

Re: Upgrading from lucene 2.9.1 to 5.X

Erick, Thank you very much. Is there any performance comparison between these two versions? Is there any data on the performance? Thank you very much Best Regards --- Shuangyang Yang linkedin.com/in/everyoung On 7/17/15, 10:06 AM, "Erick Erickson" wrote: >Please look at th