diff --git a/core/src/main/java/org/apache/struts2/StrutsConstants.java b/core/src/main/java/org/apache/struts2/StrutsConstants.java
index 6383236a2..c8c7489d4 100644
--- a/core/src/main/java/org/apache/struts2/StrutsConstants.java
+++ b/core/src/main/java/org/apache/struts2/StrutsConstants.java
@@ -310,13 +310,6 @@ public final class StrutsConstants {
      */
     public static final String STRUTS_OGNL_BEANINFO_CACHE_MAXSIZE = "struts.ognl.beanInfoCacheMaxSize";
 
-    /**
-     * @since 6.0.0
-     * @deprecated since 6.4.0, use {@link StrutsConstants#STRUTS_OGNL_BEANINFO_CACHE_TYPE} instead.
-     */
-    @Deprecated
-    public static final String STRUTS_OGNL_BEANINFO_CACHE_LRU_MODE = "struts.ognl.beanInfoCacheLRUMode";
-
     /**
      * Logs properties that are not found (very verbose)
      * @since 6.0.0
@@ -372,13 +365,6 @@ public final class StrutsConstants {
      */
     public static final String STRUTS_OGNL_EXPRESSION_CACHE_MAXSIZE = "struts.ognl.expressionCacheMaxSize";
 
-    /**
-     * @since 6.0.0
-     * @deprecated since 6.4.0, use {@link StrutsConstants#STRUTS_OGNL_EXPRESSION_CACHE_TYPE} instead.
-     */
-    @Deprecated
-    public static final String STRUTS_OGNL_EXPRESSION_CACHE_LRU_MODE = "struts.ognl.expressionCacheLRUMode";
-
     /**
      * Enables evaluation of OGNL expressions
      * @since 6.0.0
diff --git a/core/src/main/java/org/apache/struts2/dispatcher/Dispatcher.java b/core/src/main/java/org/apache/struts2/dispatcher/Dispatcher.java
index 55b397817..4f161e390 100644
--- a/core/src/main/java/org/apache/struts2/dispatcher/Dispatcher.java
+++ b/core/src/main/java/org/apache/struts2/dispatcher/Dispatcher.java
@@ -331,14 +331,6 @@ public class Dispatcher {
         multipartSaveDir = val;
     }
 
-    /**
-     * @deprecated since 6.4.0, no replacement.
-     */
-    @Deprecated(since = "6.4.0", forRemoval = true)
-    public void setMultipartHandler(String val) {
-        // no-op
-    }
-
     @Inject(value = StrutsConstants.STRUTS_MULTIPART_ENABLED, required = false)
     public void setMultipartSupportEnabled(String multipartSupportEnabled) {
         this.multipartSupportEnabled = Boolean.parseBoolean(multipartSupportEnabled);
diff --git a/core/src/main/java/org/apache/struts2/interceptor/ActionMappingParametersInterceptor.java b/core/src/main/java/org/apache/struts2/interceptor/ActionMappingParametersInterceptor.java
index ecb1f7f9f..4d52c5f9a 100644
--- a/core/src/main/java/org/apache/struts2/interceptor/ActionMappingParametersInterceptor.java
+++ b/core/src/main/java/org/apache/struts2/interceptor/ActionMappingParametersInterceptor.java
@@ -55,7 +55,7 @@ import java.util.Map;
  * <p>
  * The best way to add behavior to this interceptor is to utilize the {@link ParameterNameAware} interface in your
  * actions. However, if you wish to apply a global rule that isn't implemented in your action, then you could extend
- * this interceptor and override the {@link #acceptableName(String)} method.
+ * this interceptor and override the {@link #isAcceptableName(String)} method.
  * </p>
  *
  * <!-- END SNIPPET: extending -->
diff --git a/core/src/main/java/org/apache/struts2/interceptor/parameter/ParametersInterceptor.java b/core/src/main/java/org/apache/struts2/interceptor/parameter/ParametersInterceptor.java
index 239bc6d6c..75bc44abe 100644
--- a/core/src/main/java/org/apache/struts2/interceptor/parameter/ParametersInterceptor.java
+++ b/core/src/main/java/org/apache/struts2/interceptor/parameter/ParametersInterceptor.java
@@ -195,7 +195,7 @@ public class ParametersInterceptor extends MethodFilterInterceptor {
         Map<String, Object> contextMap = actionContext.getContextMap();
         batchApplyReflectionContextState(contextMap, true);
         try {
-            setParameters(action, actionContext.getValueStack(), parameters);
+            applyParameters(action, actionContext.getValueStack(), parameters);
         } finally {
             batchApplyReflectionContextState(contextMap, false);
         }
@@ -226,14 +226,6 @@ public class ParametersInterceptor extends MethodFilterInterceptor {
     protected void addParametersToContext(ActionContext ac, Map<String, ?> newParams) {
     }
 
-    /**
-     * @deprecated since 6.4.0, use {@link #applyParameters}
-     */
-    @Deprecated
-    protected void setParameters(final Object action, ValueStack stack, HttpParameters parameters) {
-        applyParameters(action, stack, parameters);
-    }
-
     protected void applyParameters(final Object action, ValueStack stack, HttpParameters parameters) {
         Map<String, Parameter> acceptableParameters = toAcceptableParameters(parameters, action);
 
@@ -328,7 +320,7 @@ public class ParametersInterceptor extends MethodFilterInterceptor {
      * @return true if parameter is accepted
      */
     protected boolean isAcceptableParameter(String name, Object action) {
-        return acceptableName(name) && isAcceptableParameterNameAware(name, action) && isParameterAnnotatedAndAllowlist(name, action);
+        return isAcceptableName(name) && isAcceptableParameterNameAware(name, action) && isParameterAnnotatedAndAllowlist(name, action);
     }
 
     protected boolean isAcceptableParameterNameAware(String name, Object action) {
@@ -517,7 +509,7 @@ public class ParametersInterceptor extends MethodFilterInterceptor {
      * @return true if parameter is accepted
      */
     protected boolean isAcceptableParameterValue(Parameter param, Object action) {
-        return isAcceptableParameterValueAware(param, action) && acceptableValue(param.getName(), param.getValue());
+        return isAcceptableParameterValueAware(param, action) && isAcceptableValue(param.getName(), param.getValue());
     }
 
     protected boolean isAcceptableParameterValueAware(Parameter param, Object action) {
@@ -544,13 +536,6 @@ public class ParametersInterceptor extends MethodFilterInterceptor {
                 .collect(joining());
     }
 
-    /**
-     * @deprecated since 6.4.0, use {@link #isAcceptableName}
-     */
-    protected boolean acceptableName(String name) {
-        return isAcceptableName(name);
-    }
-
     /**
      * Validates the name passed is:
      * * Within the max length of a parameter name
@@ -579,13 +564,6 @@ public class ParametersInterceptor extends MethodFilterInterceptor {
         return DMI_IGNORED_PATTERN.matcher(name).matches();
     }
 
-    /**
-     * @deprecated since 6.4.0, use {@link #isAcceptableValue}
-     */
-    protected boolean acceptableValue(String name, String value) {
-        return isAcceptableValue(name, value);
-    }
-
     /**
      * Validates:
      * * Value is null/blank
diff --git a/core/src/test/java/org/apache/struts2/interceptor/parameter/ParametersInterceptorTest.java b/core/src/test/java/org/apache/struts2/interceptor/parameter/ParametersInterceptorTest.java
index 1092cc521..9bcc70ae0 100644
--- a/core/src/test/java/org/apache/struts2/interceptor/parameter/ParametersInterceptorTest.java
+++ b/core/src/test/java/org/apache/struts2/interceptor/parameter/ParametersInterceptorTest.java
@@ -91,7 +91,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
                 put("test%test", "test%test");
             }
         };
-        pi.setParameters(a, stack, HttpParameters.create(parameters).build());
+        pi.applyParameters(a, stack, HttpParameters.create(parameters).build());
         assertEquals(expected, actual);
     }
 
@@ -114,7 +114,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
 
         // when
         ValidateAction action = new ValidateAction();
-        pi.setParameters(action, vs, HttpParameters.create(params).build());
+        pi.applyParameters(action, vs, HttpParameters.create(params).build());
 
         // then
         assertEquals(3, action.getActionErrors().size());
@@ -161,7 +161,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
 
         // when
         ValidateAction action = new ValidateAction();
-        pi.setParameters(action, vs, HttpParameters.create(params).build());
+        pi.applyParameters(action, vs, HttpParameters.create(params).build());
 
         // then
         assertEquals(0, action.getActionMessages().size());
@@ -201,7 +201,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
 
         // when
         ValidateAction action = new ValidateAction();
-        pi.setParameters(action, vs, HttpParameters.create(params).build());
+        pi.applyParameters(action, vs, HttpParameters.create(params).build());
 
         // then
         assertEquals(3, action.getActionErrors().size());
@@ -321,7 +321,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
 
         // when
         ValidateAction action = new ValidateAction();
-        pi.setParameters(action, vs, HttpParameters.create(params).build());
+        pi.applyParameters(action, vs, HttpParameters.create(params).build());
 
         // then
         assertEquals(0, action.getActionMessages().size());
@@ -436,7 +436,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
         parameters.put("huuhaa", "");
 
         Action action = new SimpleAction();
-        parametersInterceptor.setParameters(action, stack, HttpParameters.create(parameters).build());
+        parametersInterceptor.applyParameters(action, stack, HttpParameters.create(parameters).build());
         assertEquals(1, actual.size());
     }
 
@@ -630,7 +630,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
         parameters.put("user.name", "Superman");
 
         Action action = new SimpleAction();
-        pi.setParameters(action, stack, HttpParameters.create(parameters).build());
+        pi.applyParameters(action, stack, HttpParameters.create(parameters).build());
 
         assertEquals("ordered should be false by default", false, pi.isOrdered());
         assertEquals(2, actual.size());
@@ -657,7 +657,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
         parameters.put("user.name", "Superman");
 
         Action action = new SimpleAction();
-        pi.setParameters(action, stack, HttpParameters.create(parameters).build());
+        pi.applyParameters(action, stack, HttpParameters.create(parameters).build());
 
         assertEquals(true, pi.isOrdered());
         assertEquals(3, actual.size());
@@ -697,7 +697,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
                 put("fooKey", "fooValue");
             }
         };
-        pi.setParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
+        pi.applyParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
         assertEquals(expected, actual);
     }
 
@@ -728,7 +728,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
         };
 
         // when
-        interceptor.setParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
+        interceptor.applyParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
 
         // then
         assertEquals(expected, actual);
@@ -755,7 +755,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
         };
 
         // when
-        interceptor.setParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
+        interceptor.applyParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
 
         // then
         assertEquals(expected, actual);
@@ -807,7 +807,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
                 put("fooKey2", "");
             }
         };
-        pi.setParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
+        pi.applyParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
         assertEquals(expected, actual);
     }
 
@@ -844,7 +844,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
                 put("fooKey2", "");
             }
         };
-        pi.setParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
+        pi.applyParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
         assertEquals(expected, actual);
     }
 
@@ -883,7 +883,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
                 put("fooKey2", "");
             }
         };
-        pi.setParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
+        pi.applyParameters(new NoParametersAction(), stack, HttpParameters.create(parameters).build());
         assertEquals(expected, actual);
     }
 
@@ -927,7 +927,7 @@ public class ParametersInterceptorTest extends XWorkTestCase {
                 put("fooKey3", "");
             }
         };
-        pi.setParameters(a, stack, HttpParameters.create(parameters).build());
+        pi.applyParameters(a, stack, HttpParameters.create(parameters).build());
         assertEquals(expected, actual);
     }