doc : release-notes for GlusterFS-3.12.1v3.12.1

Change-Id: Id852cec1a68966356d85856fb93cabcc122bb7ee
BUG: 1488560
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
Reviewed-on: https://review.gluster.org/18258
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/doc/release-notes/3.12.1.md b/doc/release-notes/3.12.1.md
new file mode 100644
index 00000000000..04ce830a221
--- /dev/null
+++ b/doc/release-notes/3.12.1.md
@@ -0,0 +1,34 @@
+# Release notes for Gluster 3.12.1
+
+This is a bugfix release. The [Release Notes for 3.12.0](3.12.0.md),
+     [3.12.1](3.12.1.md) contain a listing of all the new features that
+     were added and bugs fixed in the GlusterFS 3.12 stable release.
+
+## Major changes, features and limitations addressed in this release
+     No Major changes
+
+## Major issues
+1. Expanding a gluster volume that is sharded may cause file corruption
+    - Sharded volumes are typically used for VM images, if such volumes are
+  expanded or possibly contracted (i.e add/remove bricks and rebalance) there
+  are reports of VM images getting corrupted.
+    - The last known cause for corruption (Bug #1465123) has a fix with this
+  release. As further testing is still in progress, the issue is retained as
+  a major issue.
+    - Status of this bug can be tracked here, #1465123
+
+## Bugs addressed
+
+     A total of 12 patches have been merged, addressing 11 bugs
+
+- [#1486538](https://bugzilla.redhat.com/1486538): [geo-rep+qr]: Crashes observed at slave from qr_lookup_sbk during rename/hardlink/rebalance
+- [#1486557](https://bugzilla.redhat.com/1486557): Log entry of files skipped/failed during rebalance operation
+- [#1487033](https://bugzilla.redhat.com/1487033): rpc: client_t and related objects leaked due to incorrect ref counts
+- [#1487319](https://bugzilla.redhat.com/1487319): afr: check op_ret value in __afr_selfheal_name_impunge
+- [#1488119](https://bugzilla.redhat.com/1488119): scripts: mount.glusterfs contains non-portable bashisms
+- [#1488168](https://bugzilla.redhat.com/1488168): Launch metadata heal in discover code path.
+- [#1488387](https://bugzilla.redhat.com/1488387): gluster-blockd process crashed and core generated
+- [#1488718](https://bugzilla.redhat.com/1488718): [RHHI] cannot boot vms created from template when disk format = qcow2
+- [#1489260](https://bugzilla.redhat.com/1489260): Crash in dht_check_and_open_fd_on_subvol_task()
+- [#1489296](https://bugzilla.redhat.com/1489296): glusterfsd (brick) process crashed
+- [#1489511](https://bugzilla.redhat.com/1489511): return ENOSYS for 'non readable' FOPs