diff --git a/CHANGES.md b/CHANGES.md
index e14c64ce..86b2782a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -13,6 +13,9 @@ For change history for [MOST][3], see [most/CHANGES.md](most/CHANGES.md).
 since 8.0b1
 -----------
 
+#### 1/18/24
+  - Rename the `is_index_name()` method of `mp.mapped_array` to `has_name()`.
+
 #### 1/9/24
   - Add `mp.cost_table_utils` with static methods for use by `mp.cost_table`.
 
diff --git a/docs/sphinx/source/conf.py b/docs/sphinx/source/conf.py
index 06141f9a..7858b283 100644
--- a/docs/sphinx/source/conf.py
+++ b/docs/sphinx/source/conf.py
@@ -20,7 +20,7 @@
 # -- Project information -----------------------------------------------------
 
 project = 'MATPOWER Documentation'
-copyright = '1996-2023, Power Systems Engineering Research Center (PSERC)'
+copyright = '1996-2024, Power Systems Engineering Research Center (PSERC)'
 author = 'Ray D. Zimmerman, Carlos E. Murillo-Sánchez, Hongye Wang, et. al.'
 
 # The full version, including alpha/beta/rc tags
diff --git a/lib/+mp/data_model.m b/lib/+mp/data_model.m
index b8ae0117..71b3c091 100644
--- a/lib/+mp/data_model.m
+++ b/lib/+mp/data_model.m
@@ -250,7 +250,7 @@
             % Output:
             %   n (integer) : number of online elements
             
-            if obj.elements.is_index_name(name)
+            if obj.elements.has_name(name)
                 n = obj.elements.(name).n;
             else
                 n = 0;
@@ -411,7 +411,7 @@ function display(obj)
             %% suppress output detail (default for large systems)
             suppress = mpopt.out.suppress_detail;
             if suppress == -1
-                if obj.elements.is_index_name('bus') && ...
+                if obj.elements.has_name('bus') && ...
                         obj.elements.bus.nr > 500
                     suppress = 1;
                 else
diff --git a/lib/+mp/dm_converter.m b/lib/+mp/dm_converter.m
index 4853184e..45fffc28 100644
--- a/lib/+mp/dm_converter.m
+++ b/lib/+mp/dm_converter.m
@@ -148,7 +148,7 @@
 
             for k = 1:length(dm.elements)
                 dme = dm.elements{k};
-                if obj.elements.is_index_name(dme.name)
+                if obj.elements.has_name(dme.name)
                     dmce = dme.dm_converter_element(obj);
                     if all_vars
                         vars = dme.main_table_var_names();
diff --git a/lib/+mp/dme_bus.m b/lib/+mp/dme_bus.m
index 309b9e14..5d7f647c 100644
--- a/lib/+mp/dme_bus.m
+++ b/lib/+mp/dme_bus.m
@@ -124,7 +124,7 @@
             obj.vm_ub = bus.vm_ub(obj.on);
 
             %% update bus type and starting vm based on connected gen status
-            if dm.elements.is_index_name('gen')
+            if dm.elements.has_name('gen')
                 gen_dme = dm.elements.gen;
                 [gbus, ig] = obj.gbus_vector(gen_dme);
                 nb = obj.n;
diff --git a/lib/+mp/dme_bus3p.m b/lib/+mp/dme_bus3p.m
index b1a94e2a..2d06c706 100644
--- a/lib/+mp/dme_bus3p.m
+++ b/lib/+mp/dme_bus3p.m
@@ -128,7 +128,7 @@
             obj.vm3_start = bus.vm3(obj.on);
 
             %% update bus type and starting vm based on connected gen status
-            if dm.elements.is_index_name('gen3p')
+            if dm.elements.has_name('gen3p')
                 gen_dme = dm.elements.gen3p;
                 [gbus, ig] = obj.gbus_vector(gen_dme);
                 nb = obj.n;
diff --git a/lib/+mp/mapped_array.m b/lib/+mp/mapped_array.m
index 69262b15..0139beae 100644
--- a/lib/+mp/mapped_array.m
+++ b/lib/+mp/mapped_array.m
@@ -27,7 +27,7 @@
 %   ma.delete_elements('height');
 %
 %   % check for named element
-%   ma.is_index_name('color');
+%   ma.has_name('color');
 %
 % mp.mapped_array Methods:
 %   * mapped_array - constructor
@@ -37,7 +37,7 @@
 %   * add_names - add or modify names of elements
 %   * add_elements - append elements to the end of the mapped array
 %   * delete_elements - delete elements from the mapped array
-%   * is_index_name - return ``true`` if the name exists in the mapped array
+%   * has_name - return ``true`` if the name exists in the mapped array
 %   * name2idx - return the index corresponding to a name
 %   * subsref - called when indexing a mapped array to retrieve data
 %   * subsasgn - called when indexing a mapped array to assign data
@@ -251,11 +251,11 @@
             end
         end
 
-        function TorF = is_index_name(obj, name)
+        function TorF = has_name(obj, name)
             % Return ``true`` if the name exists in the mapped array.
             % ::
             %
-            %   TorF = obj.is_index_name(name);
+            %   TorF = obj.has_name(name);
             %
             % Input:
             %   name (char array) : name to check
@@ -298,8 +298,8 @@
                         end
                     else    %% method calls or properties
                         switch s(1).subs
-                            case 'is_index_name'
-                                varargout{1} = is_index_name(obj, s(2).subs{:});
+                            case 'has_name'
+                                varargout{1} = has_name(obj, s(2).subs{:});
                             case 'name2idx'
                                 varargout{1} = name2idx(obj, s(2).subs{:});
                             case 'length'
diff --git a/lib/+mp/math_model_pf_acps.m b/lib/+mp/math_model_pf_acps.m
index b8c4167c..9fff3eab 100644
--- a/lib/+mp/math_model_pf_acps.m
+++ b/lib/+mp/math_model_pf_acps.m
@@ -222,7 +222,7 @@
             %% modify data model to form Bp (B prime)
             if nargout > 1      %% for both Bp and Bpp
                 dm1 = dm.copy();
-                if dm1.elements.is_index_name('shunt')
+                if dm1.elements.has_name('shunt')
                     dm1.elements.shunt.tab.bs(:) = 0;   %% zero out shunts at buses
                 end
                 dm2 = dm1.copy();
diff --git a/lib/+mp/nm_element.m b/lib/+mp/nm_element.m
index 666b8c68..7bc60dc6 100644
--- a/lib/+mp/nm_element.m
+++ b/lib/+mp/nm_element.m
@@ -157,7 +157,7 @@
             if nargin < 3
                 name = obj.name;
             end
-            if mm.elements.is_index_name(name)
+            if mm.elements.has_name(name)
                 mme = mm.elements.(name);
             else
                 mme = [];
@@ -520,7 +520,7 @@
                 [nidx{:}] = deal(zeros(dme.n, 1));
 
                 for i = 1:length(cxn_type)
-                    if dm.elements.is_index_name(cxn_type{i})
+                    if dm.elements.has_name(cxn_type{i})
                         jxn_dme = dm.elements.(cxn_type{i});    %% data model element for cxn_type{i}
                         jxn_nme = nm.elements.(cxn_type{i});    %% corresp. net model element
                         ni = nm.get_node_idx(cxn_type{i});      %% corresponding node indices
diff --git a/lib/+mp/task.m b/lib/+mp/task.m
index 0c1b110a..d6932c91 100644
--- a/lib/+mp/task.m
+++ b/lib/+mp/task.m
@@ -562,7 +562,7 @@ function save_soln(obj, fname)
                         ~isempty(mpopt.exp.exclude_elements)
                     ex = mpopt.exp.exclude_elements;
                     for k = length(ex):-1:1
-                        if ~dmc.elements.is_index_name(ex{k})
+                        if ~dmc.elements.has_name(ex{k})
                             ex(k) = [];     %% skip missing exclusions
                         end
                     end
diff --git a/lib/t/+mp/dme_branch_node_test.m b/lib/t/+mp/dme_branch_node_test.m
index fb25a21a..270eebf4 100644
--- a/lib/t/+mp/dme_branch_node_test.m
+++ b/lib/t/+mp/dme_branch_node_test.m
@@ -34,7 +34,7 @@
             %% get bus mapping info
             obj.nbet = length(obj.cxn_type);
             for k = obj.nbet:-1:1
-                if dm.elements.is_index_name(obj.cxn_type{k})
+                if dm.elements.has_name(obj.cxn_type{k})
                     bus_dme{k} = dm.elements.(obj.cxn_type{k});
                     b2i_k{k} = bus_dme{k}.ID2i; %% bus element num to idx mapping
                 else
@@ -72,7 +72,7 @@
         function obj = update_status(obj, dm)
             %% get bus status info
             for k = 1:obj.nbet
-                if dm.elements.is_index_name(obj.cxn_type{k})
+                if dm.elements.has_name(obj.cxn_type{k})
                     bus_dme = dm.elements.(obj.cxn_type{k});
                     bs = bus_dme.tab.status;    %% bus element status
 
diff --git a/lib/t/+mp/dme_gen_node_test.m b/lib/t/+mp/dme_gen_node_test.m
index 2ec3591a..8e577711 100644
--- a/lib/t/+mp/dme_gen_node_test.m
+++ b/lib/t/+mp/dme_gen_node_test.m
@@ -33,7 +33,7 @@
             %% get bus mapping info
             obj.nbet = length(obj.cxn_type);
             for k = obj.nbet:-1:1
-                if dm.elements.is_index_name(obj.cxn_type{k})
+                if dm.elements.has_name(obj.cxn_type{k})
                     bus_dme{k} = dm.elements.(obj.cxn_type{k});
                     b2i_k{k} = bus_dme{k}.ID2i;
                 else
@@ -67,7 +67,7 @@
         function obj = update_status(obj, dm)
             %% get bus status info
             for k = 1:obj.nbet
-                if dm.elements.is_index_name(obj.cxn_type{k})
+                if dm.elements.has_name(obj.cxn_type{k})
                     bus_dme = dm.elements.(obj.cxn_type{k});
                     bs = bus_dme.tab.status;    %% bus element status
 
diff --git a/lib/t/+mp/mme_branch_opf_acp_node_test.m b/lib/t/+mp/mme_branch_opf_acp_node_test.m
index e41b11ae..0be3bd26 100644
--- a/lib/t/+mp/mme_branch_opf_acp_node_test.m
+++ b/lib/t/+mp/mme_branch_opf_acp_node_test.m
@@ -15,7 +15,7 @@
             %% from makeAang()
             nb = 0;
             for k = 1:dme.nbet
-                if dm.elements.is_index_name(dme.cxn_type{k})
+                if dm.elements.has_name(dme.cxn_type{k})
                     nb = nb + dm.elements.(dme.cxn_type{k}).n;
                 end
             end
diff --git a/lib/t/t_mp_data_model.m b/lib/t/t_mp_data_model.m
index 2ce47ac3..81125eb9 100644
--- a/lib/t/t_mp_data_model.m
+++ b/lib/t/t_mp_data_model.m
@@ -55,11 +55,11 @@
     t_ok(isa(dm.elements, 'mp.mapped_array'), [t 'isa(dm.elements, ''mp.mapped_array'')']);
     t_is(length(dm.elements), 5, 12, [t 'length(dm.elements)']);
     t_ok(isa(dm.elements, 'mp.mapped_array'), [t 'isa(dm.elements, ''mp.mapped_array'')']);
-    t_ok(dm.elements.is_index_name('bus'), [t 'dm.elements.is_index_name(''bus'')']);
-    t_ok(dm.elements.is_index_name('gen'), [t 'dm.elements.is_index_name(''gen'')']);
-    t_ok(dm.elements.is_index_name('load'), [t 'dm.elements.is_index_name(''load'')']);
-    t_ok(dm.elements.is_index_name('branch'), [t 'dm.elements.is_index_name(''branch'')']);
-    t_ok(dm.elements.is_index_name('shunt'), [t 'dm.elements.is_index_name(''shunt'')']);
+    t_ok(dm.elements.has_name('bus'), [t 'dm.elements.has_name(''bus'')']);
+    t_ok(dm.elements.has_name('gen'), [t 'dm.elements.has_name(''gen'')']);
+    t_ok(dm.elements.has_name('load'), [t 'dm.elements.has_name(''load'')']);
+    t_ok(dm.elements.has_name('branch'), [t 'dm.elements.has_name(''branch'')']);
+    t_ok(dm.elements.has_name('shunt'), [t 'dm.elements.has_name(''shunt'')']);
     t_is(dm.elements.name2idx('bus'), 1, 12, [t 'dm.elements.name2idx(''bus'')']);
     t_is(dm.elements.name2idx('gen'), 2, 12, [t 'dm.elements.name2idx(''gen'')']);
     t_is(dm.elements.name2idx('load'), 3, 12, [t 'dm.elements.name2idx(''load'')']);
diff --git a/lib/t/t_mp_mapped_array.m b/lib/t/t_mp_mapped_array.m
index ca90c4ae..8a1121b3 100644
--- a/lib/t/t_mp_mapped_array.m
+++ b/lib/t/t_mp_mapped_array.m
@@ -47,12 +47,12 @@
 t_ok(isequal(A.p_.vals, vals), [t 'vals']);
 t_ok(isequal(A.p_.names, names), [t 'names']);
 
-t = 'is_index_name : ';
-t_ok(A.is_index_name('vector'), [t 'vector']);
-t_ok(A.is_index_name('cellstr'), [t 'cellstr']);
-t_ok(A.is_index_name('struct'), [t 'struct']);
-t_ok(A.is_index_name('object'), [t 'object']);
-t_ok(~A.is_index_name('random'), [t 'random']);
+t = 'has_name : ';
+t_ok(A.has_name('vector'), [t 'vector']);
+t_ok(A.has_name('cellstr'), [t 'cellstr']);
+t_ok(A.has_name('struct'), [t 'struct']);
+t_ok(A.has_name('object'), [t 'object']);
+t_ok(~A.has_name('random'), [t 'random']);
 
 t = 'name2idx : ';
 t_is(A.name2idx('vector'), 1, 12, [t 'vector']);