Latest STABLE version

The latest stable SLF4J is version 1.7.36.


SLF4J version 2.0.0-alpha7 is the most recent but it is also experimental/unstable.

Maven central

SLF4J artifacts such as .jar, .sources.jar and javadoc.jar files can be downloaded from Maven central. The corresponding groupId is org.slf4j.

Verifying contents

All SLF4J artifacts published on Maven central are signed. For each artifact, there is an associated signature file with the .asc suffix.

To verify the signature use this public key. Here is its fingerprint:

pub   2048R/A511E325 2012-04-26
Key fingerprint = 475F 3B8E 59E6 E63A A780  6748 2C7B 12F2 A511 E325
uid   Ceki Gulcu <>
sub   2048R/7FBFA159 2012-04-26