Docs: Release notes for v1.6.1

Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
Change-Id: I9ee1af1a498e635deee3509c1f6a0764875cc330
diff --git a/docs/releases/1.6.1.rst b/docs/releases/1.6.1.rst
new file mode 100644
index 0000000..42d3787
--- /dev/null
+++ b/docs/releases/1.6.1.rst
@@ -0,0 +1,15 @@
+*************
+Version 1.6.1
+*************
+
+Hotfixes
+========
+
+ - Correctly apply the stack sealing for the PSP stack in library mode
+ - Fix an issue by which the TF-M Crypto service might use invalid lengths for
+   output buffer parameters for some PSA Crypto APIs calls leading to an automatic
+   reset of the device when the API should just return PSA_ERROR_BUFFER_TOO_SMALL
+
+--------------
+
+*Copyright (c) 2022, Arm Limited. All rights reserved.*
diff --git a/docs/releases/index.rst b/docs/releases/index.rst
index 83a0556..bf71da7 100644
--- a/docs/releases/index.rst
+++ b/docs/releases/index.rst
@@ -12,7 +12,9 @@
 +--------------------------------------+--------------+--------------------+----------------------------+
 | Version                              | Date         | Description        | PSA-arch tag/hash          |
 +======================================+==============+====================+============================+
-| :doc:`v1.6.0 </releases/1.6.0>`      | 2022-04-xx   | 1.6.0 release      | f7e8495                    |
+| :doc:`v1.6.1 </releases/1.6.1>`      | 2022-11-xx   | 1.6.1 release      | f7e8495                    |
++--------------------------------------+--------------+--------------------+----------------------------+
+| :doc:`v1.6.0 </releases/1.6.0>`      | 2022-04-15   | 1.6.0 release      | f7e8495                    |
 +--------------------------------------+--------------+--------------------+----------------------------+
 | :doc:`v1.5.0 </releases/1.5.0>`      | 2021-11-30   | 1.5.0 release      | v21.10_API1.3_ADAC_ALPHA-1 |
 +--------------------------------------+--------------+--------------------+----------------------------+