diff --git a/python/lammps/core.py b/python/lammps/core.py
index 03378f471d..c89c115d1f 100644
--- a/python/lammps/core.py
+++ b/python/lammps/core.py
@@ -1781,6 +1781,8 @@ class lammps(object):
     - x is a 2d NumPy array of doubles of the coordinates of the local atoms
     - f is a 2d NumPy array of doubles of the forces on the local atoms that will be added
 
+    .. versionchanged:: 28Jul2021
+
     :param fix_id:  Fix-ID of a fix external instance
     :type: string
     :param callback: Python function that will be called from fix external
@@ -1811,6 +1813,8 @@ class lammps(object):
     This is a wrapper around the :cpp:func:`lammps_fix_external_get_force` function
     of the C-library interface.
 
+    .. versionadded:: 28Jul2021
+
     :param fix_id:  Fix-ID of a fix external instance
     :type: string
     :return: requested data
@@ -1829,6 +1833,8 @@ class lammps(object):
     This is a wrapper around the :cpp:func:`lammps_fix_external_set_energy_global` function
     of the C-library interface.
 
+    .. versionadded:: 28Jul2021
+
     :param fix_id:  Fix-ID of a fix external instance
     :type: string
     :param eng:     potential energy value to be added by fix external
@@ -1846,6 +1852,8 @@ class lammps(object):
     This is a wrapper around the :cpp:func:`lammps_fix_external_set_virial_global` function
     of the C-library interface.
 
+    .. versionadded:: 28Jul2021
+
     :param fix_id:  Fix-ID of a fix external instance
     :type: string
     :param eng:     list of 6 floating point numbers with the virial to be added by fix external
@@ -1864,6 +1872,8 @@ class lammps(object):
     This is a wrapper around the :cpp:func:`lammps_fix_external_set_energy_peratom` function
     of the C-library interface.
 
+    .. versionadded:: 28Jul2021
+
     :param fix_id:  Fix-ID of a fix external instance
     :type: string
     :param eatom:   list of potential energy values for local atoms to be added by fix external
@@ -1885,6 +1895,8 @@ class lammps(object):
     This is a wrapper around the :cpp:func:`lammps_fix_external_set_virial_peratom` function
     of the C-library interface.
 
+    .. versionadded:: 28Jul2021
+
     :param fix_id:  Fix-ID of a fix external instance
     :type: string
     :param vatom:     list of natoms lists with 6 floating point numbers to be added by fix external
@@ -1915,6 +1927,8 @@ class lammps(object):
     This is a wrapper around the :cpp:func:`lammps_fix_external_set_vector_length` function
     of the C-library interface.
 
+    .. versionadded:: 28Jul2021
+
     :param fix_id:  Fix-ID of a fix external instance
     :type: string
     :param length:  length of the global vector
@@ -1931,6 +1945,8 @@ class lammps(object):
     This is a wrapper around the :cpp:func:`lammps_fix_external_set_vector` function
     of the C-library interface.
 
+    .. versionadded:: 28Jul2021
+
     :param fix_id:  Fix-ID of a fix external instance
     :type: string
     :param idx:     1-based index of the value in the global vector
diff --git a/python/lammps/numpy_wrapper.py b/python/lammps/numpy_wrapper.py
index a6cde93b95..2f0f74594e 100644
--- a/python/lammps/numpy_wrapper.py
+++ b/python/lammps/numpy_wrapper.py
@@ -274,6 +274,8 @@ class numpy_wrapper:
     method.  It behaves the same as the original method, but returns a NumPy array instead
     of a ``ctypes`` pointer.
 
+    .. versionchanged:: 28Jul2021
+
     :param fix_id:  Fix-ID of a fix external instance
     :type: string
     :return: requested data
@@ -294,6 +296,8 @@ class numpy_wrapper:
     method.  It behaves the same as the original method, but accepts a NumPy array
     instead of a list as argument.
 
+    .. versionadded:: 28Jul2021
+
     :param fix_id:  Fix-ID of a fix external instance
     :type: string
     :param eatom:   per-atom potential energy
@@ -319,6 +323,8 @@ class numpy_wrapper:
     method.  It behaves the same as the original method, but accepts a NumPy array
     instead of a list as argument.
 
+    .. versionadded:: 28Jul2021
+
     :param fix_id:  Fix-ID of a fix external instance
     :type: string
     :param eatom:   per-atom potential energy
diff --git a/src/library.cpp b/src/library.cpp
index 5cb101d6a4..f534af0925 100644
--- a/src/library.cpp
+++ b/src/library.cpp
@@ -367,7 +367,7 @@ must be explicitly shut down after any LAMMPS instance using it is
 closed (to release associated resources).
 After calling this function no Kokkos functionality may be used.
 
-.. versionadded:: TBD
+.. versionadded:: 2Jul2021
 
 \endverbatim */
 
@@ -4945,6 +4945,8 @@ Please see the documentation for :doc:`fix external <fix_external>` for
 more information about how to use the fix and how to couple it with an
 external code.
 
+.. versionchanged:: 28Jul2021
+
 \endverbatim
  *
  * \param  handle   pointer to a previously created LAMMPS instance cast to ``void *``.
@@ -5008,6 +5010,8 @@ Please see the documentation for :doc:`fix external <fix_external>` for
 more information about how to use the fix and how to couple it with an
 external code.
 
+.. versionadded:: 28Jul2021
+
 \endverbatim
  *
  * \param  handle     pointer to a previously created LAMMPS instance cast to ``void *``.
@@ -5056,6 +5060,8 @@ Please see the documentation for :doc:`fix external <fix_external>` for
 more information about how to use the fix and how to couple it with an
 external code.
 
+.. versionadded:: 28Jul2021
+
 \endverbatim
  *
  * \param  handle   pointer to a previously created LAMMPS instance cast to ``void *``.
@@ -5105,6 +5111,8 @@ Please see the documentation for :doc:`fix external <fix_external>` for
 more information about how to use the fix and how to couple it with an
 external code.
 
+.. versionadded:: 28Jul2021
+
 \endverbatim
  *
  * \param  handle   pointer to a previously created LAMMPS instance cast to ``void *``.
@@ -5154,6 +5162,8 @@ Please see the documentation for :doc:`fix external <fix_external>` for
 more information about how to use the fix and how to couple it with an
 external code.
 
+.. versionadded:: 28Jul2021
+
 \endverbatim
  *
  * \param  handle   pointer to a previously created LAMMPS instance cast to ``void *``.
@@ -5206,6 +5216,8 @@ Please see the documentation for :doc:`fix external <fix_external>` for
 more information about how to use the fix and how to couple it with an
 external code.
 
+.. versionadded:: 28Jul2021
+
 \endverbatim
  *
  * \param  handle   pointer to a previously created LAMMPS instance cast to ``void *``.
@@ -5251,6 +5263,8 @@ Please see the documentation for :doc:`fix external <fix_external>` for
 more information about how to use the fix and how to couple it with an
 external code.
 
+.. versionadded:: 28Jul2021
+
 \endverbatim
  *
  * \param  handle   pointer to a previously created LAMMPS instance cast to ``void *``.
@@ -5305,6 +5319,8 @@ Please see the documentation for :doc:`fix external <fix_external>` for
 more information about how to use the fix and how to couple it with an
 external code.
 
+.. versionadded:: 28Jul2021
+
 \endverbatim
  *
  * \param  handle   pointer to a previously created LAMMPS instance cast to ``void *``.