diff --git a/hal/src/main/java/edu/wpi/first/hal/SimDevice.java b/hal/src/main/java/edu/wpi/first/hal/SimDevice.java
index 67c39fe351..db3a587e18 100644
--- a/hal/src/main/java/edu/wpi/first/hal/SimDevice.java
+++ b/hal/src/main/java/edu/wpi/first/hal/SimDevice.java
@@ -106,22 +106,6 @@ public class SimDevice implements AutoCloseable {
     return m_handle;
   }
 
-  /**
-   * Creates a value on the simulated device.
-   *
-   * <p>Returns null if not in simulation.
-   *
-   * @param name value name
-   * @param readonly if the value should not be written from simulation side
-   * @param initialValue initial value
-   * @return simulated value object
-   * @deprecated Use direction function instead
-   */
-  @Deprecated
-  public SimValue createValue(String name, boolean readonly, HALValue initialValue) {
-    return createValue(name, readonly ? Direction.kOutput : Direction.kInput, initialValue);
-  }
-
   /**
    * Creates a value on the simulated device.
    *
@@ -176,22 +160,6 @@ public class SimDevice implements AutoCloseable {
     return new SimLong(handle);
   }
 
-  /**
-   * Creates a double value on the simulated device.
-   *
-   * <p>Returns null if not in simulation.
-   *
-   * @param name value name
-   * @param readonly if the value should not be written from simulation side
-   * @param initialValue initial value
-   * @return simulated double value object
-   * @deprecated Use direction function instead
-   */
-  @Deprecated
-  public SimDouble createDouble(String name, boolean readonly, double initialValue) {
-    return createDouble(name, readonly ? Direction.kOutput : Direction.kInput, initialValue);
-  }
-
   /**
    * Creates a double value on the simulated device.
    *
@@ -210,25 +178,6 @@ public class SimDevice implements AutoCloseable {
     return new SimDouble(handle);
   }
 
-  /**
-   * Creates an enumerated value on the simulated device.
-   *
-   * <p>Enumerated values are always in the range 0 to numOptions-1.
-   *
-   * <p>Returns null if not in simulation.
-   *
-   * @param name value name
-   * @param readonly if the value should not be written from simulation side
-   * @param options array of option descriptions
-   * @param initialValue initial value (selection)
-   * @return simulated enum value object
-   * @deprecated Use direction function instead
-   */
-  @Deprecated
-  public SimEnum createEnum(String name, boolean readonly, String[] options, int initialValue) {
-    return createEnum(name, readonly ? Direction.kOutput : Direction.kInput, options, initialValue);
-  }
-
   /**
    * Creates an enumerated value on the simulated device.
    *
@@ -276,22 +225,6 @@ public class SimDevice implements AutoCloseable {
     return new SimEnum(handle);
   }
 
-  /**
-   * Creates a boolean value on the simulated device.
-   *
-   * <p>Returns null if not in simulation.
-   *
-   * @param name value name
-   * @param readonly if the value should not be written from simulation side
-   * @param initialValue initial value
-   * @return simulated boolean value object
-   * @deprecated Use direction function instead
-   */
-  @Deprecated
-  public SimBoolean createBoolean(String name, boolean readonly, boolean initialValue) {
-    return createBoolean(name, readonly ? Direction.kOutput : Direction.kInput, initialValue);
-  }
-
   /**
    * Creates a boolean value on the simulated device.
    *
diff --git a/hal/src/main/java/edu/wpi/first/hal/SimDeviceJNI.java b/hal/src/main/java/edu/wpi/first/hal/SimDeviceJNI.java
index 427991643f..8723cd30ed 100644
--- a/hal/src/main/java/edu/wpi/first/hal/SimDeviceJNI.java
+++ b/hal/src/main/java/edu/wpi/first/hal/SimDeviceJNI.java
@@ -36,30 +36,6 @@ public class SimDeviceJNI extends JNIWrapper {
   private static native int createSimValueNative(
       int device, String name, int direction, int type, long value1, double value2);
 
-  /**
-   * Creates a value on a simulated device.
-   *
-   * <p>Returns 0 if not in simulation; this can be used to avoid calls to Set/Get functions.
-   *
-   * @param device simulated device handle
-   * @param name value name
-   * @param readonly if the value should not be written from simulation side
-   * @param initialValue initial value
-   * @return simulated value handle
-   * @deprecated Use direction-taking function instead
-   */
-  @Deprecated
-  public static int createSimValue(
-      int device, String name, boolean readonly, HALValue initialValue) {
-    return createSimValueNative(
-        device,
-        name,
-        readonly ? kOutput : kInput,
-        initialValue.getType(),
-        initialValue.getNativeLong(),
-        initialValue.getNativeDouble());
-  }
-
   /**
    * Creates a value on a simulated device.
    *
@@ -111,25 +87,6 @@ public class SimDeviceJNI extends JNIWrapper {
     return createSimValueNative(device, name, direction, HALValue.kLong, initialValue, 0.0);
   }
 
-  /**
-   * Creates a double value on a simulated device.
-   *
-   * <p>Returns 0 if not in simulation; this can be used to avoid calls to Set/Get functions.
-   *
-   * @param device simulated device handle
-   * @param name value name
-   * @param readonly if the value should not be written from simulation side
-   * @param initialValue initial value
-   * @return simulated value handle
-   * @deprecated Use direction-taking function instead
-   */
-  @Deprecated
-  public static int createSimValueDouble(
-      int device, String name, boolean readonly, double initialValue) {
-    return createSimValueNative(
-        device, name, readonly ? kOutput : kInput, HALValue.kDouble, 0, initialValue);
-  }
-
   /**
    * Creates a double value on a simulated device.
    *
@@ -146,27 +103,6 @@ public class SimDeviceJNI extends JNIWrapper {
     return createSimValueNative(device, name, direction, HALValue.kDouble, 0, initialValue);
   }
 
-  /**
-   * Creates an enumerated value on a simulated device.
-   *
-   * <p>Enumerated values are always in the range 0 to numOptions-1.
-   *
-   * <p>Returns 0 if not in simulation; this can be used to avoid calls to Set/Get functions.
-   *
-   * @param device simulated device handle
-   * @param name value name
-   * @param readonly if the value should not be written from simulation side
-   * @param options array of option descriptions
-   * @param initialValue initial value (selection)
-   * @return simulated value handle
-   * @deprecated Use direction-taking function instead
-   */
-  @Deprecated
-  public static int createSimValueEnum(
-      int device, String name, boolean readonly, String[] options, int initialValue) {
-    return createSimValueEnum(device, name, readonly ? kOutput : kInput, options, initialValue);
-  }
-
   /**
    * Creates an enumerated value on a simulated device.
    *
@@ -207,25 +143,6 @@ public class SimDeviceJNI extends JNIWrapper {
       double[] optionValues,
       int initialValue);
 
-  /**
-   * Creates a boolean value on a simulated device.
-   *
-   * <p>Returns 0 if not in simulation; this can be used to avoid calls to Set/Get functions.
-   *
-   * @param device simulated device handle
-   * @param name value name
-   * @param readonly if the value should not be written from simulation side
-   * @param initialValue initial value
-   * @return simulated value handle
-   * @deprecated Use direction-taking function instead
-   */
-  @Deprecated
-  public static int createSimValueBoolean(
-      int device, String name, boolean readonly, boolean initialValue) {
-    return createSimValueNative(
-        device, name, readonly ? kOutput : kInput, HALValue.kBoolean, initialValue ? 1 : 0, 0.0);
-  }
-
   /**
    * Creates a boolean value on a simulated device.
    *
diff --git a/hal/src/main/java/edu/wpi/first/hal/simulation/SimDeviceDataJNI.java b/hal/src/main/java/edu/wpi/first/hal/simulation/SimDeviceDataJNI.java
index ef6536a8c9..d3b56e1d66 100644
--- a/hal/src/main/java/edu/wpi/first/hal/simulation/SimDeviceDataJNI.java
+++ b/hal/src/main/java/edu/wpi/first/hal/simulation/SimDeviceDataJNI.java
@@ -76,7 +76,6 @@ public class SimDeviceDataJNI extends JNIWrapper {
         String name, int handle, int direction, int type, long value1, double value2) {
       this.name = name;
       this.handle = handle;
-      this.readonly = direction == 1;
       this.direction = direction;
       this.value = HALValue.fromNative(type, value1, value2);
     }
@@ -87,10 +86,6 @@ public class SimDeviceDataJNI extends JNIWrapper {
     @SuppressWarnings("MemberName")
     public int handle;
 
-    @SuppressWarnings("MemberName")
-    @Deprecated
-    public boolean readonly;
-
     @SuppressWarnings("MemberName")
     public int direction;