diff --git a/aaelf64/aaelf64.rst b/aaelf64/aaelf64.rst
index 0f3ff6ef..6f2b3de6 100644
--- a/aaelf64/aaelf64.rst
+++ b/aaelf64/aaelf64.rst
@@ -11,6 +11,7 @@
 
 .. _AAPCS64: https://github.com/ARM-software/abi-aa/releases
 .. _Addenda32: https://github.com/ARM-software/abi-aa/releases
+.. _MemTagABIELF64: https://github.com/ARM-software/abi-aa/releases
 .. _PAuthABIELF64: https://github.com/ARM-software/abi-aa/releases
 .. _SCO-ELF: http://www.sco.com/developers/gabi/
 .. _LINUX_ABI: https://github.com/hjl-tools/linux-abi/wiki
@@ -266,6 +267,10 @@ changes to the content of the document for that release.
   |               |                    |   Linking`_, document new               |
   |               |                    |   PT_AARCH64_MEMTAG_MTE segment.        |
   +---------------+--------------------+-----------------------------------------+
+  | 2023Q3        |                    | - In `Dynamic Section`_, reserve tags   |
+  |               |                    |   used by `PAuthABIELF64`_ and          |
+  |               |                    | - `MemTagABIELF64`_.                    |
+  +---------------+--------------------+-----------------------------------------+
 
 
 References
@@ -284,6 +289,8 @@ This document refers to, or is referred to by, the following documents.
   +------------------------------+----------------------------------------------------------------------------------------------+-------------------------------------------------------------+
   | Addenda32_                   | IHI 0045                                                                                     | Addenda to, and Errata in, the ABI for the Arm Architecture |
   +------------------------------+----------------------------------------------------------------------------------------------+-------------------------------------------------------------+
+  | MemTagABIELF64_              | memtagabielf64                                                                               | MemTag Extension to ELF for the Arm 64-bit Architecture     |
+  +------------------------------+----------------------------------------------------------------------------------------------+-------------------------------------------------------------+
   | PAuthABIELF64_               | pauthabielf64                                                                                | PAuth Extension to ELF for the Arm 64-bit Architecture      |
   +------------------------------+----------------------------------------------------------------------------------------------+-------------------------------------------------------------+
   | LSB_                         | http://www.linuxbase.org/                                                                    | Linux Standards Base                                        |
@@ -1906,15 +1913,31 @@ AArch64 specifies the following processor-specific dynamic array tags.
 
 .. table:: AArch64 specific dynamic array tags
 
-    +---------------------------+------------+--------+-------------------+-------------------+
-    | Name                      | Value      | d\_un  | Executable        | Shared Object     |
-    +===========================+============+========+===================+===================+
-    | DT\_AARCH64\_BTI\_PLT     | 0x70000001 | d\_val | Platform specific | Platform Specific |
-    +---------------------------+------------+--------+-------------------+-------------------+
-    | DT\_AARCH64\_PAC\_PLT     | 0x70000003 | d\_val | Platform specific | Platform Specific |
-    +---------------------------+------------+--------+-------------------+-------------------+
-    | DT\_AARCH64\_VARIANT\_PCS | 0x70000005 | d\_val | Platform specific | Platform Specific |
-    +---------------------------+------------+--------+-------------------+-------------------+
+    +--------------------------------+------------+--------+-------------------+-------------------+
+    | Name                           | Value      | d\_un  | Executable        | Shared Object     |
+    +================================+============+========+===================+===================+
+    | DT\_AARCH64\_BTI\_PLT          | 0x70000001 | d\_val | Platform specific | Platform Specific |
+    +--------------------------------+------------+--------+-------------------+-------------------+
+    | DT\_AARCH64\_PAC\_PLT          | 0x70000003 | d\_val | Platform specific | Platform Specific |
+    +--------------------------------+------------+--------+-------------------+-------------------+
+    | DT\_AARCH64\_VARIANT\_PCS      | 0x70000005 | d\_val | Platform specific | Platform Specific |
+    +--------------------------------+------------+--------+-------------------+-------------------+
+    | RESERVED for `MemTagABIELF64`_ | 0x70000009 | d\_val | Platform specific | Platform Specific |
+    +--------------------------------+------------+--------+-------------------+-------------------+
+    | RESERVED for `MemTagABIELF64`_ | 0x7000000b | d\_val | Platform specific | Platform Specific |
+    +--------------------------------+------------+--------+-------------------+-------------------+
+    | RESERVED for `MemTagABIELF64`_ | 0x7000000c | d\_ptr | Platform specific | Platform Specific |
+    +--------------------------------+------------+--------+-------------------+-------------------+
+    | RESERVED for `MemTagABIELF64`_ | 0x7000000d | d\_val | Platform specific | Platform Specific |
+    +--------------------------------+------------+--------+-------------------+-------------------+
+    | RESERVED for `MemTagABIELF64`_ | 0x7000000f | d\_val | Platform specific | Platform Specific |
+    +--------------------------------+------------+--------+-------------------+-------------------+
+    | RESERVED for `PAuthABIELF64`_  | 0x70000011 | d\_val | Platform specific | Platform Specific |
+    +--------------------------------+------------+--------+-------------------+-------------------+
+    | RESERVED for `PAuthABIELF64`_  | 0x70000012 | d\_ptr | Platform specific | Platform Specific |
+    +--------------------------------+------------+--------+-------------------+-------------------+
+    | RESERVED for `PAuthABIELF64`_  | 0x70000013 | d\_val | Platform specific | Platform Specific |
+    +--------------------------------+------------+--------+-------------------+-------------------+
 
 ``DT_AARCH64_BTI_PLT`` indicates PLTs enabled with Branch Target Identification
 mechanism.
@@ -1929,6 +1952,8 @@ Pointer Authentication.
 relocations that reference symbols marked with the ``STO_AARCH64_VARIANT_PCS``
 flag set in their ``st_other`` field.
 
+See `MemTagABIELF64`_ and `PAuthABIELF64`_ for details of reserved tags.
+
 .. raw:: pdf
 
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