# Release notes for GlusterFS-3.7.19 GlusterFS-3.7.19 is a bug fix release for GlusterFS-3.7. This release stays at operating-version 30712. ## Bugs fixed The following bugs have been fixed in this release. - [#1399024](https://bugzilla.redhat.com/1399024): performance.read-ahead on results in processes on client stuck in IO wait - [#1399914](https://bugzilla.redhat.com/1399914): [SAMBA-CIFS] : IO hungs in cifs mount while graph switch on & off - [#1402215](https://bugzilla.redhat.com/1402215): [RFE] enable sharding and strict-o-direct with virt profile - /var/lib/glusterd/groups/virt - [#1404586](https://bugzilla.redhat.com/1404586): Upcall: Possible use after free when log level set to TRACE - [#1405918](https://bugzilla.redhat.com/1405918): Refresh config fails while exporting subdirectories within a volume - [#1405955](https://bugzilla.redhat.com/1405955): NFS-Ganesha:Volume reset for any option causes reset of ganesha enable option and bring down the ganesha services - [#1408820](https://bugzilla.redhat.com/1408820): [Arbiter] After Killing a brick writes drastically slow down