diff --git a/camera/provider/2.6/ICameraProvider.hal b/camera/provider/2.6/ICameraProvider.hal
index 9c46ba0..5651550 100644
--- a/camera/provider/2.6/ICameraProvider.hal
+++ b/camera/provider/2.6/ICameraProvider.hal
@@ -56,11 +56,26 @@
      * s720p - min (max output resolution for the given format, 1280 X 720)
      * s1440p - min (max output resolution for the given format, 1920 X 1440)
      *
+     * If a device has MONOCHROME capability (device's capabilities include
+     * ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MONOCHROME) and therefore supports Y8
+     * outputs, stream combinations mentioned above, where YUV is substituted by
+     * Y8 must be also supported.
+     *
      * The camera framework must call this method whenever it gets a
      * cameraDeviceStatusChange callback adding a new camera device or removing
      * a camera device known to it. This is so that the camera framework can get new combinations
      * of camera ids that can stream concurrently, that might have potentially appeared.
      *
+     * For each combination (and their subsets) of camera device ids returned by
+     * getConcurrentStreamingCameraIds(): If only the mandatory combinations can
+     * be supported concurrently by each device, then the resource costs must
+     * sum up to > 100 for the concurrent set, to ensure arbitration between
+     * camera applications work as expected. Only if resources are sufficient
+     * to run a set of cameras at full capability (maximally
+     * resource-consuming framerate and stream size settings available in the
+     * configuration settings exposed through camera metadata), should the sum
+     * of resource costs for the combination be <= 100.
+     *
      * @return status Status code for the operation
      * @return cameraIds a list of camera id combinations that support
      *         concurrent stream configurations with the minimum guarantees
diff --git a/current.txt b/current.txt
index 8e2016d..5cc7e85 100644
--- a/current.txt
+++ b/current.txt
@@ -639,7 +639,7 @@
 07d0a252b2d8fa35887908a996ba395cf392968395fc30afab791f46e0c22a52 android.hardware.boot@1.1::IBootControl
 74049a402be913963edfdd80828a53736570e9d8124a1bf18166b6ed46a6b0ab android.hardware.boot@1.1::types
 b8c63679e1a3874b356f3e691aecce1191d38f59063cf2ed2dce8a9d4cabf00e android.hardware.camera.device@3.6::ICameraDevice
-daad72a2f482d8a1f660d0e99ac1b78fedb414a4cfbe3fa56b2cd480e5d6f0cb android.hardware.camera.provider@2.6::ICameraProvider
+99aae72ae75a8ddf63ccffbc585f3a55f4d0847b4adff3d7a0f8bd9e2305bec1 android.hardware.camera.provider@2.6::ICameraProvider
 8f8d9463508ff9cae88eb35c429fd0e2dbca0ca8f5de7fdf836cc0c4370becb6 android.hardware.camera.provider@2.6::ICameraProviderCallback
 a35d5151b48505f06a775b38c0e2e265f80a845d92802324c643565807f81c53 android.hardware.camera.device@3.6::types
 c1aa508d00b66ed5feefea398fd5edf28fa651ac89773adad7dfda4e0a73a952 android.hardware.cas@1.2::ICas