Hello All, I am very pleased to announce the release of SLF4J version 2.0.4. In this release, LoggerFactory uses the class loader that loaded LoggerFactory class itself to find providers of type SLF4JServiceProvider. Previously, the thread context class loader was used. This was unintentional and the current behavior more closely matches that of the SLF4J 1.7 series and earlier. Please refer to the the news page for more details on this release: http://www.slf4j.org/news.html The 2.0.x series introduces a backward-compatible fluent logging API. By backward-compatible, we mean that existing logging frameworks do not have to be changed in order for the user to benefit from the fluent logging API. However, existing frameworks *must* migrate to the ServiceLoader mechanism. The resulting internal changes are detailed in the FAQ page. http://www.slf4j.org/faq.html#changesInVersion200 The 2.0.x series builds upon the the 1.8.x series which was modularized per Java Platform Module System (JPMS/Jigsaw). The 2.0.x series requires Java 8. Binary compatibility: Mixing mixing different versions of slf4j-api.jar and SLF4J provider can cause problems. For example, if you are using slf4j-api-2.0.0.jar, then you should also use slf4j-simple-2.0.0.jar, using slf4j-simple-1.5.5.jar will not work. With the exception of the fluent API (new in SLF4J 2.0.x), from the client's perspective all versions of slf4j-api are compatible. Client code compiled with slf4j-api-N.jar will run perfectly fine with slf4j-api-M.jar for any N and M. You only need to ensure that the version of your provider matches that of the slf4j-api.jar. You do not have to worry about the version of slf4j-api.jar used to compile a given dependency in your project. You can always use *any* version of slf4j-api.jar, and as long as the version of slf4j-api.jar and its provider match, you should be fine. Donations and sponsorship You can also support SLF4J/logback/reload4j projects via donations and sponsorship. We thank our current supporters and sponsors for their continued contributions. Sponsorship link: https://github.com/sponsors/qos-ch Announcement mailing list: You can receive SLF4J/logback/reload4j related announcements by subscribing QOS.ch announce list, please visit the following URL. http://www.qos.ch/mailman/listinfo/announce Enjoy, -- Ceki Gülcü -- Ceki Gülcü Sponsoring SLF4J/logback/reload4j at https://github.com/sponsors/qos-ch