diff --git a/CITATION.cff b/CITATION.cff
index 788f7ac104..b4faf32a79 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -4,6 +4,6 @@ authors:
   - affiliation: Google
     given-names: "The TensorFlow Federated Authors"
 title: "TensorFlow Federated"
-version: 0.67.0
+version: 0.68.0
 date-released: 2018-12-12
 url: "https://github.com/tensorflow/federated"
diff --git a/RELEASE.md b/RELEASE.md
index c26d0b507a..6f02f03436 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -1,3 +1,29 @@
+# Release 0.68.0
+
+## Major Features and Improvements
+
+*   Added `tff.types.tensorflow_to_type` function to convert structures
+    containing tensorflow type specs into a `tff.Type`.
+*   Deprecated `tff.types.infer_unplaced_type`.
+*   Updated `tff.types.ArrayShape` to be defined as a `Sequence` not an
+    `Iterable`, this is because the `len` of an `tff.types.ArrayShape` is used
+    for comparison.
+*   Deprecated the `type_signature` parameter for the
+    `tff.program.ReleaseManager.release` method.
+
+## Breaking Changes
+
+*   Removed the implementation of `tff.Value.__add__`.
+*   Removed the deprecated `tff.Type.check_*()` functions, use `isinstance`
+    instead.
+*   Removed `tff.types.at_clients` and `tff.types.at_server` functions, use the
+    `tff.FederatedType` constructor instead.
+*   Removed support for handling `tf.data.DatasetSpec`, `tf.RaggedTensorSpec`,
+    and `tf.SparseTensorSpec` using `tff.to_type`, use
+    `tff.types.tensorflow_to_type` instead.
+*   Removed support for handling `tf.RaggedTensor` and `tf.SparseTensor` using
+    `infer_type`.
+
 # Release 0.67.0
 
 ## Major Features and Improvements
diff --git a/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb b/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb
index b7c20408eb..137bb2b9c1 100644
--- a/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb
+++ b/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb
@@ -42,10 +42,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/building_your_own_federated_learning_algorithm\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/composing_learning_algorithms.ipynb b/docs/tutorials/composing_learning_algorithms.ipynb
index e7109291c5..5ee77ce92b 100644
--- a/docs/tutorials/composing_learning_algorithms.ipynb
+++ b/docs/tutorials/composing_learning_algorithms.ipynb
@@ -51,10 +51,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/composing_learning_algorithms\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/composing_learning_algorithms.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/composing_learning_algorithms.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/composing_learning_algorithms.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/composing_learning_algorithms.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/composing_learning_algorithms.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
@@ -126,7 +126,7 @@
         "id": "3zQlyijofSzI"
       },
       "source": [
-        "The [Building Your Own Federated Learning Algorithm Tutorial](https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb) used TFF's federated core to directly implement a version of the Federated Averaging (FedAvg) algorithm.\n",
+        "The [Building Your Own Federated Learning Algorithm Tutorial](https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb) used TFF's federated core to directly implement a version of the Federated Averaging (FedAvg) algorithm.\n",
         "\n",
         "In this tutorial, you will use federated learning components in TFF's API to build federated learning algorithms in a modular manner, without having to re-implement everything from scratch.\n",
         "\n",
@@ -155,7 +155,7 @@
         "id": "YwhOtjlvjboB"
       },
       "source": [
-        "While the [Building Your Own Federated Learning Algorithm Tutorial](https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb) implemented all of these building blocks from scratch, this is often unnecessary. Instead, you can re-use building blocks from similar algorithms.\n",
+        "While the [Building Your Own Federated Learning Algorithm Tutorial](https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/building_your_own_federated_learning_algorithm.ipynb) implemented all of these building blocks from scratch, this is often unnecessary. Instead, you can re-use building blocks from similar algorithms.\n",
         "\n",
         "In this case, to implement FedAvg with gradient clipping, you only need to modify the **client work** building block. The remaining blocks can be identical to what is used in \"vanilla\" FedAvg."
       ]
diff --git a/docs/tutorials/custom_aggregators.ipynb b/docs/tutorials/custom_aggregators.ipynb
index c1acfeb0d4..b870e443e0 100644
--- a/docs/tutorials/custom_aggregators.ipynb
+++ b/docs/tutorials/custom_aggregators.ipynb
@@ -51,10 +51,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/custom_aggregators\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/custom_aggregators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/custom_aggregators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/custom_aggregators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/custom_aggregators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/custom_aggregators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/custom_federated_algorithm_with_tff_optimizers.ipynb b/docs/tutorials/custom_federated_algorithm_with_tff_optimizers.ipynb
index 0d0ed91309..f398979308 100644
--- a/docs/tutorials/custom_federated_algorithm_with_tff_optimizers.ipynb
+++ b/docs/tutorials/custom_federated_algorithm_with_tff_optimizers.ipynb
@@ -42,10 +42,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/custom_federated_algorithm_with_tff_optimizers\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/custom_federated_algorithm_with_tff_optimizers.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/custom_federated_algorithm_with_tff_optimizers.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/custom_federated_algorithm_with_tff_optimizers.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/custom_federated_algorithm_with_tff_optimizers.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/custom_federated_algorithm_with_tff_optimizers.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/custom_federated_algorithms_1.ipynb b/docs/tutorials/custom_federated_algorithms_1.ipynb
index 6ed22bcd39..259becf2b3 100644
--- a/docs/tutorials/custom_federated_algorithms_1.ipynb
+++ b/docs/tutorials/custom_federated_algorithms_1.ipynb
@@ -51,10 +51,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/custom_federated_algorithms_1\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/custom_federated_algorithms_1.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/custom_federated_algorithms_1.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/custom_federated_algorithms_1.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/custom_federated_algorithms_1.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/custom_federated_algorithms_1.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/custom_federated_algorithms_2.ipynb b/docs/tutorials/custom_federated_algorithms_2.ipynb
index f6b09646e4..91262691c6 100644
--- a/docs/tutorials/custom_federated_algorithms_2.ipynb
+++ b/docs/tutorials/custom_federated_algorithms_2.ipynb
@@ -51,10 +51,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/custom_federated_algorithms_2\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/custom_federated_algorithms_2.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/custom_federated_algorithms_2.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/custom_federated_algorithms_2.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/custom_federated_algorithms_2.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/custom_federated_algorithms_2.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/federated_learning_for_image_classification.ipynb b/docs/tutorials/federated_learning_for_image_classification.ipynb
index f1d7c68c65..c8144d600c 100644
--- a/docs/tutorials/federated_learning_for_image_classification.ipynb
+++ b/docs/tutorials/federated_learning_for_image_classification.ipynb
@@ -51,10 +51,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/federated_learning_for_image_classification\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/federated_learning_for_image_classification.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/federated_learning_for_image_classification.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/federated_learning_for_image_classification.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/federated_learning_for_image_classification.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/federated_learning_for_image_classification.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/federated_learning_for_text_generation.ipynb b/docs/tutorials/federated_learning_for_text_generation.ipynb
index 51d4e29e45..fd46f01893 100644
--- a/docs/tutorials/federated_learning_for_text_generation.ipynb
+++ b/docs/tutorials/federated_learning_for_text_generation.ipynb
@@ -51,10 +51,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/federated_learning_for_text_generation\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/federated_learning_for_text_generation.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/federated_learning_for_text_generation.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/federated_learning_for_text_generation.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/federated_learning_for_text_generation.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/federated_learning_for_text_generation.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/federated_learning_with_differential_privacy.ipynb b/docs/tutorials/federated_learning_with_differential_privacy.ipynb
index c94e2b1a27..f0b027aab0 100644
--- a/docs/tutorials/federated_learning_with_differential_privacy.ipynb
+++ b/docs/tutorials/federated_learning_with_differential_privacy.ipynb
@@ -42,10 +42,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/federated_learning_with_differential_privacy\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/federated_learning_with_differential_privacy.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/federated_learning_with_differential_privacy.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/federated_learning_with_differential_privacy.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/federated_learning_with_differential_privacy.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/federated_learning_with_differential_privacy.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/federated_reconstruction_for_matrix_factorization.ipynb b/docs/tutorials/federated_reconstruction_for_matrix_factorization.ipynb
index a19309e8fe..c0935932df 100644
--- a/docs/tutorials/federated_reconstruction_for_matrix_factorization.ipynb
+++ b/docs/tutorials/federated_reconstruction_for_matrix_factorization.ipynb
@@ -51,10 +51,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/federated_reconstruction_for_matrix_factorization\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/federated_reconstruction_for_matrix_factorization.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/federated_reconstruction_for_matrix_factorization.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/federated_reconstruction_for_matrix_factorization.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/federated_reconstruction_for_matrix_factorization.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/federated_reconstruction_for_matrix_factorization.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/federated_select.ipynb b/docs/tutorials/federated_select.ipynb
index 890988e70c..aaae5c5338 100644
--- a/docs/tutorials/federated_select.ipynb
+++ b/docs/tutorials/federated_select.ipynb
@@ -42,10 +42,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/federated_select\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/federated_select.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/federated_select.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/federated_select.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/federated_select.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/federated_select.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/private_heavy_hitters.ipynb b/docs/tutorials/private_heavy_hitters.ipynb
index fe76318d4b..729ba99816 100644
--- a/docs/tutorials/private_heavy_hitters.ipynb
+++ b/docs/tutorials/private_heavy_hitters.ipynb
@@ -51,10 +51,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/private_heavy_hitters\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/private_heavy_hitters.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/private_heavy_hitters.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/private_heavy_hitters.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/private_heavy_hitters.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/private_heavy_hitters.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/random_noise_generation.ipynb b/docs/tutorials/random_noise_generation.ipynb
index a38dab26af..6680c08706 100644
--- a/docs/tutorials/random_noise_generation.ipynb
+++ b/docs/tutorials/random_noise_generation.ipynb
@@ -53,10 +53,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/random_noise_generation\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/random_noise_generation.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/random_noise_generation.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/random_noise_generation.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/random_noise_generation.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/random_noise_generation.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/simulations.ipynb b/docs/tutorials/simulations.ipynb
index 842da9339e..ee64d2808f 100644
--- a/docs/tutorials/simulations.ipynb
+++ b/docs/tutorials/simulations.ipynb
@@ -60,10 +60,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/simulations\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/simulations.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/simulations.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/simulations.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/simulations.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/simulations.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/simulations_with_accelerators.ipynb b/docs/tutorials/simulations_with_accelerators.ipynb
index eef934f62a..3a5e6227e4 100644
--- a/docs/tutorials/simulations_with_accelerators.ipynb
+++ b/docs/tutorials/simulations_with_accelerators.ipynb
@@ -53,10 +53,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/simulations_with_accelerators\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/simulations_with_accelerators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/simulations_with_accelerators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/simulations_with_accelerators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/simulations_with_accelerators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/simulations_with_accelerators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/sparse_federated_learning.ipynb b/docs/tutorials/sparse_federated_learning.ipynb
index d8bedf830f..4010ed5df5 100644
--- a/docs/tutorials/sparse_federated_learning.ipynb
+++ b/docs/tutorials/sparse_federated_learning.ipynb
@@ -51,10 +51,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/sparse_federated_learning\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/sparse_federated_learning.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/sparse_federated_learning.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/sparse_federated_learning.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/sparse_federated_learning.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/sparse_federated_learning.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/tff_for_federated_learning_research_compression.ipynb b/docs/tutorials/tff_for_federated_learning_research_compression.ipynb
index 3c8276da33..137ecfaa53 100644
--- a/docs/tutorials/tff_for_federated_learning_research_compression.ipynb
+++ b/docs/tutorials/tff_for_federated_learning_research_compression.ipynb
@@ -42,10 +42,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/tff_for_federated_learning_research_compression\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/tff_for_federated_learning_research_compression.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/tff_for_federated_learning_research_compression.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/tff_for_federated_learning_research_compression.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/tff_for_federated_learning_research_compression.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/tff_for_federated_learning_research_compression.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/tuning_recommended_aggregators.ipynb b/docs/tutorials/tuning_recommended_aggregators.ipynb
index 0ae39d1a0c..500f236718 100644
--- a/docs/tutorials/tuning_recommended_aggregators.ipynb
+++ b/docs/tutorials/tuning_recommended_aggregators.ipynb
@@ -51,10 +51,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/tuning_recommended_aggregators\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/tuning_recommended_aggregators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/tuning_recommended_aggregators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/tuning_recommended_aggregators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/tuning_recommended_aggregators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/tuning_recommended_aggregators.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/docs/tutorials/working_with_client_data.ipynb b/docs/tutorials/working_with_client_data.ipynb
index b157d5f7e5..21492c5e93 100644
--- a/docs/tutorials/working_with_client_data.ipynb
+++ b/docs/tutorials/working_with_client_data.ipynb
@@ -51,10 +51,10 @@
         "    \u003ca target=\"_blank\" href=\"https://www.tensorflow.org/federated/tutorials/working_with_client_data\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" /\u003eView on TensorFlow.org\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.67.0/docs/tutorials/working_with_client_data.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/federated/blob/v0.68.0/docs/tutorials/working_with_client_data.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" /\u003eRun in Google Colab\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
-        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.67.0/docs/tutorials/working_with_client_data.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
+        "    \u003ca target=\"_blank\" href=\"https://github.com/tensorflow/federated/blob/v0.68.0/docs/tutorials/working_with_client_data.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" /\u003eView source on GitHub\u003c/a\u003e\n",
         "  \u003c/td\u003e\n",
         "  \u003ctd\u003e\n",
         "    \u003ca href=\"https://storage.googleapis.com/tensorflow_docs/federated/docs/tutorials/working_with_client_data.ipynb\"\u003e\u003cimg src=\"https://www.tensorflow.org/images/download_logo_32px.png\" /\u003eDownload notebook\u003c/a\u003e\n",
diff --git a/tensorflow_federated/version.py b/tensorflow_federated/version.py
index 6434f4063f..0df7bdd60b 100644
--- a/tensorflow_federated/version.py
+++ b/tensorflow_federated/version.py
@@ -13,4 +13,4 @@
 # limitations under the License.
 """TensorFlow Federated version."""
 
-__version__ = '0.67.0'
+__version__ = '0.68.0'