Version 1.3 release.

Updates CHANGELOG, version, docs.
diff --git a/docs/dyn/replicapool_v1beta1.pools.html b/docs/dyn/replicapool_v1beta1.pools.html
index 74ab0b1..fdc4d81 100644
--- a/docs/dyn/replicapool_v1beta1.pools.html
+++ b/docs/dyn/replicapool_v1beta1.pools.html
@@ -180,6 +180,7 @@
                 "diskSizeGb": "A String", # The size of the created disk in gigabytes.
                 "sourceImage": "A String", # The name or fully-qualified URL of a source image to use to create this disk. If you provide a name of the source image, Replica Pool will look for an image with that name in your project. If you are specifying an image provided by Compute Engine, you will need to provide the full URL with the correct project, such as:
                     # http://www.googleapis.com/compute/v1/projects/debian-cloud/ global/images/debian-wheezy-7-vYYYYMMDD
+                "diskType": "A String", # Name of the disk type resource describing which disk type to use to create the disk. For example 'pd-ssd' or 'pd-standard'. Default is 'pd-standard'
               },
               "boot": True or False, # If true, indicates that this is the root persistent disk.
               "attachment": { # Specifies how to attach a disk to a Replica. # How the disk will be attached to the Replica.
@@ -327,6 +328,7 @@
               "diskSizeGb": "A String", # The size of the created disk in gigabytes.
               "sourceImage": "A String", # The name or fully-qualified URL of a source image to use to create this disk. If you provide a name of the source image, Replica Pool will look for an image with that name in your project. If you are specifying an image provided by Compute Engine, you will need to provide the full URL with the correct project, such as:
                   # http://www.googleapis.com/compute/v1/projects/debian-cloud/ global/images/debian-wheezy-7-vYYYYMMDD
+              "diskType": "A String", # Name of the disk type resource describing which disk type to use to create the disk. For example 'pd-ssd' or 'pd-standard'. Default is 'pd-standard'
             },
             "boot": True or False, # If true, indicates that this is the root persistent disk.
             "attachment": { # Specifies how to attach a disk to a Replica. # How the disk will be attached to the Replica.
@@ -467,6 +469,7 @@
                 "diskSizeGb": "A String", # The size of the created disk in gigabytes.
                 "sourceImage": "A String", # The name or fully-qualified URL of a source image to use to create this disk. If you provide a name of the source image, Replica Pool will look for an image with that name in your project. If you are specifying an image provided by Compute Engine, you will need to provide the full URL with the correct project, such as:
                     # http://www.googleapis.com/compute/v1/projects/debian-cloud/ global/images/debian-wheezy-7-vYYYYMMDD
+                "diskType": "A String", # Name of the disk type resource describing which disk type to use to create the disk. For example 'pd-ssd' or 'pd-standard'. Default is 'pd-standard'
               },
               "boot": True or False, # If true, indicates that this is the root persistent disk.
               "attachment": { # Specifies how to attach a disk to a Replica. # How the disk will be attached to the Replica.
@@ -620,6 +623,7 @@
                     "diskSizeGb": "A String", # The size of the created disk in gigabytes.
                     "sourceImage": "A String", # The name or fully-qualified URL of a source image to use to create this disk. If you provide a name of the source image, Replica Pool will look for an image with that name in your project. If you are specifying an image provided by Compute Engine, you will need to provide the full URL with the correct project, such as:
                         # http://www.googleapis.com/compute/v1/projects/debian-cloud/ global/images/debian-wheezy-7-vYYYYMMDD
+                    "diskType": "A String", # Name of the disk type resource describing which disk type to use to create the disk. For example 'pd-ssd' or 'pd-standard'. Default is 'pd-standard'
                   },
                   "boot": True or False, # If true, indicates that this is the root persistent disk.
                   "attachment": { # Specifies how to attach a disk to a Replica. # How the disk will be attached to the Replica.
@@ -786,6 +790,7 @@
                 "diskSizeGb": "A String", # The size of the created disk in gigabytes.
                 "sourceImage": "A String", # The name or fully-qualified URL of a source image to use to create this disk. If you provide a name of the source image, Replica Pool will look for an image with that name in your project. If you are specifying an image provided by Compute Engine, you will need to provide the full URL with the correct project, such as:
                     # http://www.googleapis.com/compute/v1/projects/debian-cloud/ global/images/debian-wheezy-7-vYYYYMMDD
+                "diskType": "A String", # Name of the disk type resource describing which disk type to use to create the disk. For example 'pd-ssd' or 'pd-standard'. Default is 'pd-standard'
               },
               "boot": True or False, # If true, indicates that this is the root persistent disk.
               "attachment": { # Specifies how to attach a disk to a Replica. # How the disk will be attached to the Replica.
@@ -917,6 +922,7 @@
           "diskSizeGb": "A String", # The size of the created disk in gigabytes.
           "sourceImage": "A String", # The name or fully-qualified URL of a source image to use to create this disk. If you provide a name of the source image, Replica Pool will look for an image with that name in your project. If you are specifying an image provided by Compute Engine, you will need to provide the full URL with the correct project, such as:
               # http://www.googleapis.com/compute/v1/projects/debian-cloud/ global/images/debian-wheezy-7-vYYYYMMDD
+          "diskType": "A String", # Name of the disk type resource describing which disk type to use to create the disk. For example 'pd-ssd' or 'pd-standard'. Default is 'pd-standard'
         },
         "boot": True or False, # If true, indicates that this is the root persistent disk.
         "attachment": { # Specifies how to attach a disk to a Replica. # How the disk will be attached to the Replica.