diff --git a/python-packages/contract_addresses/CHANGELOG.md b/python-packages/contract_addresses/CHANGELOG.md
new file mode 100644
index 0000000000..3a7595c21c
--- /dev/null
+++ b/python-packages/contract_addresses/CHANGELOG.md
@@ -0,0 +1,10 @@
+# Changelog
+
+## 2.0.1 - 2019-02-25
+
+-   Updated addresses of OrderValidator and Forwarder contracts.
+
+## 2.1.0 - 2019-04-30
+
+-   Added Coordinator and CoordinatorRegistry addresses.
+-   Expanded documentation.
diff --git a/python-packages/contract_addresses/setup.py b/python-packages/contract_addresses/setup.py
index 25219022e8..6bebc210ad 100755
--- a/python-packages/contract_addresses/setup.py
+++ b/python-packages/contract_addresses/setup.py
@@ -118,7 +118,7 @@ with open("README.md", "r") as file_handle:
 
 setup(
     name="0x-contract-addresses",
-    version="2.0.0",
+    version="2.1.0",
     description="Addresses at which the 0x smart contracts have been deployed",
     long_description=README_MD,
     long_description_content_type="text/markdown",
diff --git a/python-packages/contract_artifacts/CHANGELOG.md b/python-packages/contract_artifacts/CHANGELOG.md
new file mode 100644
index 0000000000..3a4a5cca80
--- /dev/null
+++ b/python-packages/contract_artifacts/CHANGELOG.md
@@ -0,0 +1,9 @@
+# Changelog
+
+## 2.0.0 - 2019-01-09
+
+-   Initial release.
+
+## 2.0.1 - 2019-04-30
+
+-   Expanded documentation.
diff --git a/python-packages/contract_artifacts/setup.py b/python-packages/contract_artifacts/setup.py
index 05e7819915..02d2bda98a 100755
--- a/python-packages/contract_artifacts/setup.py
+++ b/python-packages/contract_artifacts/setup.py
@@ -127,7 +127,7 @@ with open("README.md", "r") as file_handle:
 
 setup(
     name="0x-contract-artifacts",
-    version="2.0.0",
+    version="2.0.1",
     description="0x smart contract compilation artifacts",
     long_description=README_MD,
     long_description_content_type="text/markdown",
diff --git a/python-packages/contract_wrappers/CHANGELOG.md b/python-packages/contract_wrappers/CHANGELOG.md
new file mode 100644
index 0000000000..1639a8f546
--- /dev/null
+++ b/python-packages/contract_wrappers/CHANGELOG.md
@@ -0,0 +1,5 @@
+# Changelog
+
+## 1.0.0 - 2019-04-30
+
+-   Initial release.
diff --git a/python-packages/contract_wrappers/setup.py b/python-packages/contract_wrappers/setup.py
index 55551a7c87..ad9974db4b 100755
--- a/python-packages/contract_wrappers/setup.py
+++ b/python-packages/contract_wrappers/setup.py
@@ -140,7 +140,7 @@ with open("README.md", "r") as file_handle:
 
 setup(
     name="0x-contract-wrappers",
-    version="1.0.1",
+    version="1.0.0",
     description="Python wrappers for 0x smart contracts",
     long_description=README_MD,
     long_description_content_type="text/markdown",
diff --git a/python-packages/json_schemas/CHANGELOG.md b/python-packages/json_schemas/CHANGELOG.md
new file mode 100644
index 0000000000..53568a5e78
--- /dev/null
+++ b/python-packages/json_schemas/CHANGELOG.md
@@ -0,0 +1,10 @@
+# Changelog
+
+## 1.0.0 - 2019-01-09
+
+-   Initial release.
+
+## 2.0.0 - 2019-04-30
+
+-   Added `verifyingContractAddress` to `/zeroExTransactionSchema`.
+-   Expanded documentation.
diff --git a/python-packages/json_schemas/setup.py b/python-packages/json_schemas/setup.py
index 8fc13b0e22..3aa39ee7c5 100755
--- a/python-packages/json_schemas/setup.py
+++ b/python-packages/json_schemas/setup.py
@@ -127,7 +127,7 @@ with open("README.md", "r") as file_handle:
 
 setup(
     name="0x-json-schemas",
-    version="1.0.0",
+    version="2.0.0",
     description="JSON schemas for 0x applications",
     long_description=README_MD,
     long_description_content_type="text/markdown",
diff --git a/python-packages/middlewares/CHANGELOG.json b/python-packages/middlewares/CHANGELOG.json
deleted file mode 100644
index 497be22cfb..0000000000
--- a/python-packages/middlewares/CHANGELOG.json
+++ /dev/null
@@ -1,11 +0,0 @@
-[
-    {
-        "version": "1.0.0",
-        "changes": [
-            {
-                "note": "Initial publish",
-                "pr": 1713
-            }
-        ]
-    }
-]
diff --git a/python-packages/middlewares/CHANGELOG.md b/python-packages/middlewares/CHANGELOG.md
new file mode 100644
index 0000000000..1639a8f546
--- /dev/null
+++ b/python-packages/middlewares/CHANGELOG.md
@@ -0,0 +1,5 @@
+# Changelog
+
+## 1.0.0 - 2019-04-30
+
+-   Initial release.
diff --git a/python-packages/middlewares/setup.py b/python-packages/middlewares/setup.py
index fc3687dfd5..24b0aab8af 100755
--- a/python-packages/middlewares/setup.py
+++ b/python-packages/middlewares/setup.py
@@ -131,11 +131,14 @@ with open("README.md", "r") as file_handle:
 
 setup(
     name="0x-middlewares",
-    version="1.0.1",
+    version="1.0.0",
     description="Web3 middlewares for 0x applications",
     long_description=README_MD,
     long_description_content_type="text/markdown",
-    url="https://github.com/0xproject/0x-monorepo/python-packages/middlewares",
+    url=(
+        "https://github.com/0xproject/0x-monorepo/tree/development"
+        "/python-packages/middlewares"
+    ),
     author="Michael Huang",
     author_email="michaelhly@users.noreply.github.com",
     cmdclass={
diff --git a/python-packages/order_utils/CHANGELOG.md b/python-packages/order_utils/CHANGELOG.md
new file mode 100644
index 0000000000..8be78e0775
--- /dev/null
+++ b/python-packages/order_utils/CHANGELOG.md
@@ -0,0 +1,12 @@
+# Changelog
+
+## 1.1.1 - 2019-02-26
+
+-   Replaced dependency on web3 with dependency on 0x-web3, to ease coexistence of those two packages.
+
+## 2.0.0 - 2019-04-30
+
+-   Changed `ERC20AssetData` and `ERC721AssetData` to inherit from `NamedTuple` rather than `TypedDict`.
+-   Deprecated methods `encode_erc20_asset_data()` and `encode_erc721_asset_data()`, in favor of new methods `encode_erc20()` and `encode_erc721()`. The old methods return a string, which is less than convenient for building orders using the provided `Order` type, which expects asset data to be `bytes`. The new methods return `bytes`.
+-   Expanded documentation.
+-   Stopped using deprecated web3.py interface `contract.call()` in favor of `contract.functions.X.call()`. This provides compatibility with the upcoming 5.x release of web3.py, and it also eliminates some runtime warning messages.
diff --git a/python-packages/order_utils/setup.py b/python-packages/order_utils/setup.py
index 0290a38132..c75e965b76 100755
--- a/python-packages/order_utils/setup.py
+++ b/python-packages/order_utils/setup.py
@@ -148,11 +148,14 @@ with open("README.md", "r") as file_handle:
 
 setup(
     name="0x-order-utils",
-    version="1.0.1",
+    version="2.0.0",
     description="Order utilities for 0x applications",
     long_description=README_MD,
     long_description_content_type="text/markdown",
-    url="https://github.com/0xproject/0x-monorepo/python-packages/order_utils",
+    url=(
+        "https://github.com/0xProject/0x-monorepo/tree/development"
+        "/python-packages/order_utils"
+    ),
     author="F. Eugene Aumson",
     author_email="feuGeneA@users.noreply.github.com",
     cmdclass={
diff --git a/python-packages/sra_client/CHANGELOG.json b/python-packages/sra_client/CHANGELOG.json
deleted file mode 100644
index 0016c0e04f..0000000000
--- a/python-packages/sra_client/CHANGELOG.json
+++ /dev/null
@@ -1,22 +0,0 @@
-[
-    {
-        "version": "1.0.1",
-        "changes": [
-            {
-                "note": "Fix regex validation on numeric values",
-                "pr": 1731
-            }
-        ],
-        "timestamp": 1553491629
-    },
-    {
-        "version": "1.0.1",
-        "changes": [
-            {
-                "note": "Added new devdependencies, and linting commands to `setup.py`. Added sphinx docs to demonstrate how to use sra_client.",
-                "pr": 1734
-            }
-        ],
-        "timestamp": 1553183790
-    }
-]
diff --git a/python-packages/sra_client/CHANGELOG.md b/python-packages/sra_client/CHANGELOG.md
new file mode 100644
index 0000000000..05dc09f6ac
--- /dev/null
+++ b/python-packages/sra_client/CHANGELOG.md
@@ -0,0 +1,11 @@
+# Changelog
+
+## 1.0.0 - 2018-12-11
+
+-   Initial release.
+
+## 2.0.0 - 2019-04-30
+
+-   Moved module `sra_client` into `zero_ex` namespace.
+-   Fixed regular expression that validates numeric values. Before, validation would fail for all of: maker and taker fees, maker and taker asset amounts, salt, and expiration time.
+-   Expanded documentation.
diff --git a/python-packages/sra_client/README.md b/python-packages/sra_client/README.md
index 4e8bfb6f27..7d0b98d907 100644
--- a/python-packages/sra_client/README.md
+++ b/python-packages/sra_client/README.md
@@ -2,6 +2,8 @@
 
 A Python client for interacting with servers conforming to [the Standard Relayer API specification](https://github.com/0xProject/0x-monorepo/tree/development/packages/sra-spec).
 
+Read the [documentation](http://0x-sra-client-py.s3-website-us-east-1.amazonaws.com/)
+
 # Schemas
 
 The [JSON schemas](http://json-schema.org/) for the API payloads and responses can be found in [@0xproject/json-schemas](https://github.com/0xProject/0x-monorepo/tree/development/packages/json-schemas). Examples of each payload and response can be found in the 0x.js library's [test suite](https://github.com/0xProject/0x-monorepo/blob/development/packages/json-schemas/test/schema_test.ts#L1).
diff --git a/python-packages/sra_client/setup.py b/python-packages/sra_client/setup.py
index 404c3d9810..40369d0e8f 100755
--- a/python-packages/sra_client/setup.py
+++ b/python-packages/sra_client/setup.py
@@ -12,7 +12,7 @@ from setuptools import setup, find_packages  # noqa: H301
 from setuptools.command.test import test as TestCommand
 
 NAME = "0x-sra-client"
-VERSION = "1.0.1"
+VERSION = "2.0.0"
 # To install the library, run the following
 #
 # python setup.py install
@@ -148,9 +148,12 @@ class PublishDocsCommand(distutils.command.build_py.build_py):
 setup(
     name=NAME,
     version=VERSION,
-    description="Standard Relayer REST API",
+    description="Standard Relayer REST API Client",
     author_email="",
-    url="https://github.com/0xproject/0x-monorepo/python-packages/sra_client",
+    url=(
+        "https://github.com/0xproject/0x-monorepo/tree/development"
+        "/python-packages/sra_client"
+    ),
     keywords=["OpenAPI", "OpenAPI-Generator", "Standard Relayer REST API"],
     install_requires=REQUIRES,
     namespace_packages=["zero_ex"],
diff --git a/python-packages/uninstall_all b/python-packages/uninstall_all
new file mode 100755
index 0000000000..2f25939937
--- /dev/null
+++ b/python-packages/uninstall_all
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+PKG_FOLDERS=$(find ./ -maxdepth 1 -type d -exec basename {} \; | grep -v -e '^.$' | grep -v '.mypy_cache' | tr '_' '-')
+for i in $PKG_FOLDERS; do PKGS="${PKGS} 0x-$i"; done
+echo pip uninstall --yes $PKGS 0x-web3 web3
+     pip uninstall --yes $PKGS 0x-web3 web3