Update

src/zcl_demo_abap_date_time.clas.abap

@@ -187,7 +187,18 @@ CLASS zcl_demo_abap_date_time IMPLEMENTATION.
 
     "Assignment of an invalid date of type d to type i; the initial value
     "is produced
-    DATA(inv_date3) = CONV i( CONV d( '20240231' ) ).
+    "In newer ABAP releases, the following statement shows a  
+    "syntax warning that the date (intentionally specified as 
+    "invalid date here) does not match the type. Therefore, 
+    "the example is provided differently to circumvent the
+    "syntax warning.
+    
+    "DATA(inv_date3) = CONV i( CONV d( '20240231' ) ).
+    
+    TYPES c8 TYPE c LENGTH 8.
+    DATA false_date TYPE c8 VALUE '20240231'.
+    DATA(inv_date3) = CONV i( CONV d( false_date ) ).
+    
     IF inv_date3 = 0.
       out->write( `inv_date3 = 0` ).
     ENDIF.
@@ -913,10 +924,27 @@ CLASS zcl_demo_abap_date_time IMPLEMENTATION.
           "No data object change. The statement below should return a valid time stamp.
         WHEN 2.
           "Invalid date
-          date_test = '20249999'.
+          "In newer ABAP releases, the following statement shows a 
+          "syntax warning that the date (intentionally specified as 
+          "invalid date here) does not match the type. Therefore, 
+          "the example is provided differently to circumvent the 
+          "syntax warning.
+
+          "date_test = '20249999'.
+
+          TYPES c_l8 TYPE c LENGTH 8.
+          DATA falsedate TYPE c_l8 VALUE '20240231'.
+          date_test = falsedate.
         WHEN 3.
           "Invalid time
-          time_test = '992458'.
+          "The following statement is commented out for the reasons
+          "mentioned above.
+
+          "time_test = '992458'.
+
+          TYPES c_l6 TYPE c LENGTH 6.
+          DATA falsetime TYPE c_l6 VALUE '992458'.
+          time_test = falsetime.
         WHEN 4.
           "Invalid fractions of seconds
           frac_sec_test = '1'.
@@ -925,7 +953,14 @@ CLASS zcl_demo_abap_date_time IMPLEMENTATION.
           dls_test = 'X'.
         WHEN 6.
           "Invalid time zone
-          dls_test = `NOPE`.
+          "The following statement is commented out for the reasons
+          "mentioned above.
+
+          "dls_test = `NOPE`.
+
+          TYPES c_l4 TYPE c LENGTH 4.
+          DATA falsetimezone TYPE c_l4 VALUE 'NOPE'.
+          dls_test = falsetimezone.
       ENDCASE.
 
       TRY.

src/zcl_demo_abap_dtype_dobj.clas.abap

@@ -1273,7 +1273,15 @@ CLASS zcl_demo_abap_dtype_dobj IMPLEMENTATION.
     out->write( data = date name = `date` ).
     out->write( |\n| ).
 
-    date = 20240101.
+    "In newer ABAP releases, the following statement shows a syntax 
+    "warning that the value of the the data object (intentionally 
+    "specified here like this) is not an admissable value for the 
+    "target type. Therefore, the example is provided differently to 
+    "circumvent the syntax warning.
+    
+    "date = 20240101.
+    DATA falsedate TYPE i VALUE 20240101.
+    date = falsedate.
     out->write( data = date name = `date` ).
 
 **********************************************************************
@@ -1670,7 +1678,21 @@ CLASS zcl_demo_abap_dtype_dobj IMPLEMENTATION.
 
     "Assignments
     do_h_c5 = 'abc'.
-    do_h_c5 = 'defghi'. "only 'def' assigned -> length and memory use do not change
+    
+    "In newer ABAP releases, the following statement shows a syntax 
+    "warning that the value of the literal (intentionally specified 
+    "here like this) is not an admissable value for the target type. 
+    "Therefore, the example is provided differently to circumvent the 
+    "syntax warning.
+
+    "do_h_c5 = 'defghi'.
+
+    TYPES c_l6 TYPE c LENGTH 6.
+    DATA some_char TYPE c_l6 VALUE 'defghi'.
+    "only 'def' assigned -> length and memory use do not change
+    do_h_c5 = some_char.
+
+
 
     "Memory consumption changes for dynamic data objects
     do_i_str = `abc`.

src/zcl_demo_abap_prog_flow_logic.clas.abap

@@ -415,7 +415,7 @@ CLASS zcl_demo_abap_prog_flow_logic IMPLEMENTATION.
     AND `ha` && `llo` = <fs>
 
     "Constructor expression
-    AND CONV i( '2.03' ) = num
+    AND VALUE i( ) = 0
     AND VALUE string_table( ( `a` ) ( `b` ) ( `c` ) ) = str_table
 
     "Table expression

src/zcl_demo_abap_string_proc.clas.abap

@@ -99,7 +99,17 @@ CLASS zcl_demo_abap_string_proc IMPLEMENTATION.
     DATA(str_a6) = `efgh`. "Type string
 
     "Note: Variable is of type c length 4. Characters are truncated.
-    char_a2 = 'ijklmnopq'.
+    "In newer ABAP releases, the following statement shows a syntax 
+    "warning that the value of the literal (intentionally specified 
+    "here like this) is not an admissable value for the target type. 
+    "Therefore, the example is provided differently to circumvent the 
+    "syntax warning.
+
+    "char_a2 = 'ijklmnopq'.
+    
+    TYPES c_l9 TYPE c LENGTH 9.
+    DATA some_char TYPE c_l9 VALUE 'ijklmnopq'.
+    char_a2 = some_char.
 
     "Treating trailing blanks
     DATA(char_a3) = 'ab   '.