diff --git a/biometrics/face/1.0/IBiometricsFace.hal b/biometrics/face/1.0/IBiometricsFace.hal
index f39eaeb..1c7bfb9 100644
--- a/biometrics/face/1.0/IBiometricsFace.hal
+++ b/biometrics/face/1.0/IBiometricsFace.hal
@@ -78,11 +78,15 @@
      * template if the operation was preceded by some kind of strong credential
      * confirmation (e.g. device password).
      *
+     * @param challengeTimeoutSec A timeout in seconds, after which the driver
+     *     must invalidate the challenge. This is to prevent bugs or crashes in
+     *     the system from leaving a challenge enabled indefinitely.
      * @return result, with its "value" parameter representing a "challenge": a
      *     unique and cryptographically secure random token.
      */
     @callflow(next={"enroll", "revokeChallenge", "setRequireAttention"})
-    generateChallenge() generates (OptionalUint64 result);
+    generateChallenge(uint32_t challengeTimeoutSec)
+        generates (OptionalUint64 result);
 
     /**
      * Enrolls a user's face.
diff --git a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
index 439333d..f2a7836 100644
--- a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
+++ b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
@@ -2080,6 +2080,14 @@
                     } else {
                         ADD_FAILURE() << "Get camera hardware level failed!";
                     }
+
+                    entry.count = 0;
+                    retcode = find_camera_metadata_ro_entry(metadata,
+                            ANDROID_REQUEST_CHARACTERISTIC_KEYS_NEEDING_PERMISSION, &entry);
+                    if ((0 == retcode) || (entry.count > 0)) {
+                        ADD_FAILURE() << "ANDROID_REQUEST_CHARACTERISTIC_KEYS_NEEDING_PERMISSION "
+                            << " per API contract should never be set by Hal!";
+                    }
                 });
                 ASSERT_TRUE(ret.isOk());
             }
diff --git a/current.txt b/current.txt
index d41d8d3..e09eaa3 100644
--- a/current.txt
+++ b/current.txt
@@ -390,8 +390,6 @@
 574e8f1499436fb4075894dcae0b36682427956ecb114f17f1fe22d116a83c6b android.hardware.neuralnetworks@1.0::IPreparedModel
 1fb32361286b938d48a55c2539c846732afce0b99fe08590f556643125bc13d3 android.hardware.neuralnetworks@1.0::types
 e22e8135d061d0e9c4c1a70c25c19fdba10f4d3cda9795ef25b6392fc520317c android.hardware.neuralnetworks@1.1::types
-810b03825c633b21982871a8aa690db94285947fca71881de71bf293ad0aa9c5 android.hardware.neuralnetworks@1.2::types
-79f3820a02f37bb0f84bca1a07900fd5bd819ec5a60ed14b205e1dc5e24a51b2 android.hardware.neuralnetworks@1.2::IDevice
 1d4a5776614c08b5d794a5ec5ab04697260cbd4b3441d5935cd53ee71d19da02 android.hardware.radio@1.0::IRadioResponse
 271187e261b30c01a33011aea257c07a2d2f05b72943ebee89e973e997849973 android.hardware.radio@1.0::types
 1d19720d4fd38b1095f0f555a4bd92b3b12c9b1d0f560b0e9a474cd6dcc20db6 android.hardware.radio@1.2::IRadio
diff --git a/keymaster/4.0/support/authorization_set.cpp b/keymaster/4.0/support/authorization_set.cpp
index bf77420..afbcdac 100644
--- a/keymaster/4.0/support/authorization_set.cpp
+++ b/keymaster/4.0/support/authorization_set.cpp
@@ -523,8 +523,7 @@
     return *this;
 }
 
-AuthorizationSetBuilder& AuthorizationSetBuilder::Digest(
-    std::initializer_list<V4_0::Digest> digests) {
+AuthorizationSetBuilder& AuthorizationSetBuilder::Digest(std::vector<V4_0::Digest> digests) {
     for (auto digest : digests) {
         push_back(TAG_DIGEST, digest);
     }
diff --git a/keymaster/4.0/support/include/keymasterV4_0/authorization_set.h b/keymaster/4.0/support/include/keymasterV4_0/authorization_set.h
index 6c7fd35..1869682 100644
--- a/keymaster/4.0/support/include/keymasterV4_0/authorization_set.h
+++ b/keymaster/4.0/support/include/keymasterV4_0/authorization_set.h
@@ -278,7 +278,7 @@
     AuthorizationSetBuilder& GcmModeMacLen(uint32_t macLength);
 
     AuthorizationSetBuilder& BlockMode(std::initializer_list<BlockMode> blockModes);
-    AuthorizationSetBuilder& Digest(std::initializer_list<Digest> digests);
+    AuthorizationSetBuilder& Digest(std::vector<Digest> digests);
     AuthorizationSetBuilder& Padding(std::initializer_list<PaddingMode> paddings);
 
     template <typename... T>
diff --git a/keymaster/4.0/vts/functional/KeymasterHidlTest.cpp b/keymaster/4.0/vts/functional/KeymasterHidlTest.cpp
index 6ed61da..995ae4f 100644
--- a/keymaster/4.0/vts/functional/KeymasterHidlTest.cpp
+++ b/keymaster/4.0/vts/functional/KeymasterHidlTest.cpp
@@ -672,8 +672,7 @@
     return {EcCurve::P_224, EcCurve::P_384, EcCurve::P_521};
 }
 
-std::initializer_list<Digest> KeymasterHidlTest::ValidDigests(bool withNone, bool withMD5) {
-    std::vector<Digest> result;
+std::vector<Digest> KeymasterHidlTest::ValidDigests(bool withNone, bool withMD5) {
     switch (SecLevel()) {
         case SecurityLevel::TRUSTED_ENVIRONMENT:
             if (withNone) {
diff --git a/keymaster/4.0/vts/functional/KeymasterHidlTest.h b/keymaster/4.0/vts/functional/KeymasterHidlTest.h
index 94beb21..4cd6a5b 100644
--- a/keymaster/4.0/vts/functional/KeymasterHidlTest.h
+++ b/keymaster/4.0/vts/functional/KeymasterHidlTest.h
@@ -214,7 +214,7 @@
     std::vector<EcCurve> ValidCurves();
     std::vector<EcCurve> InvalidCurves();
 
-    std::initializer_list<Digest> ValidDigests(bool withNone, bool withMD5);
+    std::vector<Digest> ValidDigests(bool withNone, bool withMD5);
     std::vector<Digest> InvalidDigests();
 
     HidlBuf key_blob_;
diff --git a/neuralnetworks/1.2/types.hal b/neuralnetworks/1.2/types.hal
index 61970f0..129172d 100644
--- a/neuralnetworks/1.2/types.hal
+++ b/neuralnetworks/1.2/types.hal
@@ -26,7 +26,56 @@
  * The type of an operation in a model.
  */
 enum OperationType : @1.1::OperationType {
-
+    // TODO: Sync docs.
+    ARGMAX = 38,
+    ARGMIN = 39,
+    PAD_V2 = 40,
+    BBOX_TRANSFORM = 41,
+    BIDIRECTIONAL_SEQUENCE_LSTM = 42,
+    BIDIRECTIONAL_SEQUENCE_RNN = 43,
+    BOX_WITH_NMS_LIMIT = 44,
+    CAST = 45,
+    CHANNEL_SHUFFLE = 46,
+    DETECTION_OUTPUT = 47,
+    EMBEDDING_LOOKUP_SPARSE = 48,
+    EXP = 49,
+    EXPAND_DIMS = 50,
+    GATHER = 51,
+    GENERATE_PROPOSALS = 52,
+    GREATER = 53,
+    GREATER_EQUAL = 54,
+    GROUPED_CONV_2D = 55,
+    HEATMAP_MAX_KEYPOINT = 56,
+    LESS = 57,
+    LESS_EQUAL = 58,
+    LOG = 59,
+    LOGICAL_AND = 60,
+    LOGICAL_NOT = 61,
+    LOGICAL_OR = 62,
+    LOG_SOFTMAX = 63,
+    MAXIMUM = 64,
+    MINIMUM = 65,
+    NEG = 66,
+    POW = 67,
+    PRELU = 68,
+    PRIOR_BOX = 69,
+    QUANTIZE = 70,
+    QUANTIZED_16BIT_LSTM = 71,
+    RANDOM_MULTINOMIAL = 72,
+    REDUCE = 73,
+    ROI_ALIGN = 74,
+    RSQRT = 75,
+    SELECT = 76,
+    SIN = 77,
+    SLICE = 78,
+    SPARSE_TO_DENSE = 78,
+    SPLIT = 79,
+    SQRT = 80,
+    TILE = 81,
+    TOPK_V2 = 82,
+    TRANSPOSE_CONV_2D = 83,
+    UNIDIRECTIONAL_SEQUENCE_LSTM = 84,
+    UNIDIRECTIONAL_SEQUENCE_RNN = 85,
 };
 
 /**