[logback-user] Help needed

Dear Logback Users I am going to use logback in one of my android projects. I have configured everything and it is working perfectly fine. I have used logback-android-1.0.10-2.jar slf4j-api-1.7.5.jar Is it one of the stable versions that I am using? If not, is it possible for you to suggest the stable version? I am planning to have my application on Google Play by next week, is it ok to use logback or there isn't any stable release yet? Also, if everything is fine, I would like to know how can I configure a Rolling file appender with rolling time of 4 hours? Is it possible? Please suggest. I will appreciate all your help. -- Thanks & Regards Jagmohan Singh