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+# Release notes for Gluster 4.0.2
+This is a bugfix release. The release notes for [4.0.0](, and [4.0.1](
+contain a listing of all the new features that were added and bugs fixed in the
+GlusterFS 4.0 release.
+## Major changes, features and limitations addressed in this release
+This release contains a fix for a security vulerability in Gluster as follows,
+Installing the updated packages and restarting gluster services, will update the
+Gluster shared storage volume volfiles, that are more secure than the defaults
+currently in place.
+Further, for increased security, the Gluster shared storage volume can be TLS
+enabled, and access to the same restricted using the `auth.ssl-allow` option.
+See, this [guide]( for more details.
+## Major issues
+**No Major issues**
+## Bugs addressed
+Bugs addressed since release-4.0.1 are listed below.
+- [#1558959]( [brick-mux] incorrect event-thread scaling in server_reconfigure()
+- [#1559079]( test ./tests/bugs/ec/bug-1236065.t is generating crash on build
+- [#1559244]( enable ownthread feature for glusterfs4_0_fop_prog
+- [#1561721]( Rebalance failures on a dispersed volume with lookup-optimize enabled
+- [#1562728]( SHD is not healing entries in halo replication
+- [#1564461]( gfapi: fix a couple of minor issues
+- [#1565654]( /var/log/glusterfs/bricks/export_vdb.log flooded with this error message "Not able to add to index [Too many links]"
+- [#1566822]( [Remove-brick] Many files were not migrated from the decommissioned bricks; commit results in data loss
+- [#1569403]( EIO errors on some operations when volume has mixed brick versions on a disperse volume
+- [#1570432]( CVE-2018-1088 glusterfs: Privilege escalation via gluster_shared_storage when snapshot scheduling is enabled [fedora-all]