diff --git a/current.txt b/current.txt
index 018ef20..cc86653 100644
--- a/current.txt
+++ b/current.txt
@@ -249,7 +249,8 @@
 # Future changes to HALs
 5804ca86611d72e5481f022b3a0c1b334217f2e4988dad25730c42af2d1f4d1c android.hardware.neuralnetworks@1.0::IDevice
 12e8dca4ab7d8aadd0ef8f1b438021938e2396139e85db2ed65783b08800aa52 android.hardware.neuralnetworks@1.0::IExecutionCallback
-86b77e06da756a76aa3685be88765852dd982a86d8c90b8b4fc1130ed4184c8f android.hardware.neuralnetworks@1.0::types
+574e8f1499436fb4075894dcae0b36682427956ecb114f17f1fe22d116a83c6b android.hardware.neuralnetworks@1.0::IPreparedModel
+b07802a3433a9abec67a41525dc04eab9efb62760414e1d37e2f72cc5ae9cb8a android.hardware.neuralnetworks@1.0::types
 
 # Documentation fixups for b/78135149
 9e7a0b650d0e461ece2cfec0e1072abf8676f592b41a7fb48f01e88fc3c8f780 android.hardware.broadcastradio@1.0::types
diff --git a/neuralnetworks/1.0/IPreparedModel.hal b/neuralnetworks/1.0/IPreparedModel.hal
index ee406fb..ecaa7f8 100644
--- a/neuralnetworks/1.0/IPreparedModel.hal
+++ b/neuralnetworks/1.0/IPreparedModel.hal
@@ -42,6 +42,12 @@
      * execute function. This callback must be provided with the ErrorStatus of
      * the execution.
      *
+     * If the prepared model was prepared from a model wherein all
+     * tensor operands have fully specified dimensions, and the inputs
+     * to the function are valid, then the execution should launch
+     * and complete successfully (ErrorStatus::NONE). There must be
+     * no failure unless the device itself is in a bad state.
+     *
      * Multiple threads can call the execute function on the same IPreparedModel
      * object concurrently with different requests.
      *
diff --git a/neuralnetworks/1.0/types.hal b/neuralnetworks/1.0/types.hal
index 1ae1726..5a40e4e 100644
--- a/neuralnetworks/1.0/types.hal
+++ b/neuralnetworks/1.0/types.hal
@@ -1668,8 +1668,7 @@
     vec<uint8_t> operandValues;
 
     /**
-     * A collection of shared memory pools containing operand data that were
-     * registered by the model.
+     * A collection of shared memory pools containing operand values.
      *
      * An operand's value must be located here if and only if Operand::lifetime
      * equals OperandLifeTime::CONSTANT_REFERENCE.
@@ -1721,6 +1720,9 @@
  * 1) Provides the input and output data to be used when executing the model.
  * 2) Specifies any updates to the input operand metadata that were left
  *    unspecified at model preparation time.
+ *
+ * An output must not overlap with any other output, with an input, or
+ * with an operand of lifetime CONSTANT_REFERENCE.
  */
 struct Request {
     /**
diff --git a/neuralnetworks/1.1/types.hal b/neuralnetworks/1.1/types.hal
index e4c656d..b5718f3 100644
--- a/neuralnetworks/1.1/types.hal
+++ b/neuralnetworks/1.1/types.hal
@@ -404,8 +404,7 @@
     vec<uint8_t> operandValues;
 
     /**
-     * A collection of shared memory pools containing operand data that were
-     * registered by the model.
+     * A collection of shared memory pools containing operand values.
      *
      * An operand's value must be located here if and only if Operand::lifetime
      * equals OperandLifeTime::CONSTANT_REFERENCE.