diff --git a/ci/install_release_build.sh b/ci/install_release_build.sh
new file mode 100644
index 0000000000000..f8373176643fa
--- /dev/null
+++ b/ci/install_release_build.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# this requires cython to be installed
+
+# this builds the release cleanly
+rm -rf dist
+git clean -xfd
+python setup.py clean
+python setup.py cython
+python setup.py sdist --formats=gztar
diff --git a/ci/install_travis.sh b/ci/install_travis.sh
index 09668cbccc9d2..601edded29f5a 100755
--- a/ci/install_travis.sh
+++ b/ci/install_travis.sh
@@ -123,12 +123,9 @@ if [ "$BUILD_TEST" ]; then
 
     # build & install testing
     echo ["Starting installation test."]
-    rm -rf dist
-    python setup.py clean
-    python setup.py build_ext --inplace
-    python setup.py sdist --formats=gztar
-    conda uninstall cython
-    pip install dist/*tar.gz || exit 1
+    bash ci/install_release_build.sh
+    conda uninstall -y cython
+    time pip install dist/*tar.gz || exit 1
 
 else
 
@@ -162,14 +159,13 @@ if [ -e ${REQ} ]; then
     time bash $REQ || exit 1
 fi
 
-# finish install if we are not doing a build-testk
-if [ -z "$BUILD_TEST" ]; then
+# remove any installed pandas package
+# w/o removing anything else
+echo
+echo "[removing installed pandas]"
+conda remove pandas --force
 
-    # remove any installed pandas package
-    # w/o removing anything else
-    echo
-    echo "[removing installed pandas]"
-    conda remove pandas --force
+if [ -z "$BUILD_TEST" ]; then
 
     # install our pandas
     echo
@@ -178,6 +174,10 @@ if [ -z "$BUILD_TEST" ]; then
 
 fi
 
+echo
+echo "[show pandas]"
+conda list pandas
+
 echo
 echo "[done]"
 exit 0
diff --git a/ci/requirements-2.7_BUILD_TEST.pip b/ci/requirements-2.7_BUILD_TEST.pip
new file mode 100644
index 0000000000000..a0fc77c40bc00
--- /dev/null
+++ b/ci/requirements-2.7_BUILD_TEST.pip
@@ -0,0 +1,7 @@
+xarray
+geopandas
+seaborn
+pandas_gbq
+pandas_datareader
+statsmodels
+scikit-learn
diff --git a/ci/requirements-2.7_BUILD_TEST.sh b/ci/requirements-2.7_BUILD_TEST.sh
new file mode 100755
index 0000000000000..78941fd0944e5
--- /dev/null
+++ b/ci/requirements-2.7_BUILD_TEST.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+source activate pandas
+
+echo "install 27 BUILD_TEST"
+
+conda install -n pandas -c conda-forge pyarrow dask
diff --git a/pandas/tests/test_downstream.py b/pandas/tests/test_downstream.py
new file mode 100644
index 0000000000000..2baedb82aa2a7
--- /dev/null
+++ b/pandas/tests/test_downstream.py
@@ -0,0 +1,85 @@
+"""
+Testing that we work in the downstream packages
+"""
+import pytest
+import numpy as np  # noqa
+from pandas import DataFrame
+from pandas.util import testing as tm
+
+
+@pytest.fixture
+def df():
+    return DataFrame({'A': [1, 2, 3]})
+
+
+def test_dask(df):
+
+    toolz = pytest.importorskip('toolz')  # noqa
+    dask = pytest.importorskip('dask')  # noqa
+
+    import dask.dataframe as dd
+
+    ddf = dd.from_pandas(df, npartitions=3)
+    assert ddf.A is not None
+    assert ddf.compute() is not None
+
+
+def test_xarray(df):
+
+    xarray = pytest.importorskip('xarray')  # noqa
+
+    assert df.to_xarray() is not None
+
+
+def test_statsmodels():
+
+    statsmodels = pytest.importorskip('statsmodels')  # noqa
+    import statsmodels.api as sm
+    import statsmodels.formula.api as smf
+    df = sm.datasets.get_rdataset("Guerry", "HistData").data
+    smf.ols('Lottery ~ Literacy + np.log(Pop1831)', data=df).fit()
+
+
+def test_scikit_learn(df):
+
+    sklearn = pytest.importorskip('sklearn')  # noqa
+    from sklearn import svm, datasets
+
+    digits = datasets.load_digits()
+    clf = svm.SVC(gamma=0.001, C=100.)
+    clf.fit(digits.data[:-1], digits.target[:-1])
+    clf.predict(digits.data[-1:])
+
+
+def test_seaborn():
+
+    seaborn = pytest.importorskip('seaborn')
+    tips = seaborn.load_dataset("tips")
+    seaborn.stripplot(x="day", y="total_bill", data=tips)
+
+
+def test_pandas_gbq(df):
+
+    pandas_gbq = pytest.importorskip('pandas-gbq')  # noqa
+
+
+@tm.network
+def test_pandas_datareader():
+
+    pandas_datareader = pytest.importorskip('pandas-datareader')  # noqa
+    pandas_datareader.get_data_yahoo('AAPL')
+
+
+def test_geopandas():
+
+    geopandas = pytest.importorskip('geopandas')  # noqa
+    fp = geopandas.datasets.get_path('naturalearth_lowres')
+    assert geopandas.read_file(fp) is not None
+
+
+def test_pyarrow(df):
+
+    pyarrow = pytest.importorskip('pyarrow')  # noqa
+    table = pyarrow.Table.from_pandas(df)
+    result = table.to_pandas()
+    tm.assert_frame_equal(result, df)
diff --git a/pandas/types/common.py b/pandas/types/common.py
new file mode 100644
index 0000000000000..a125c27d04596
--- /dev/null
+++ b/pandas/types/common.py
@@ -0,0 +1,8 @@
+import warnings
+
+warnings.warn("pandas.types.common is deprecated and will be "
+              "removed in a future version, import "
+              "from pandas.api.types",
+              DeprecationWarning, stacklevel=3)
+
+from pandas.core.dtypes.common import *  # noqa
diff --git a/pandas/util/decorators.py b/pandas/util/decorators.py
new file mode 100644
index 0000000000000..54bb834e829f3
--- /dev/null
+++ b/pandas/util/decorators.py
@@ -0,0 +1,8 @@
+import warnings
+
+warnings.warn("pandas.util.decorators is deprecated and will be "
+              "removed in a future version, import "
+              "from pandas.util",
+              DeprecationWarning, stacklevel=3)
+
+from pandas.util._decorators import *  # noqa
diff --git a/pandas/util/hashing.py b/pandas/util/hashing.py
new file mode 100644
index 0000000000000..f97a7ac507407
--- /dev/null
+++ b/pandas/util/hashing.py
@@ -0,0 +1,18 @@
+import warnings
+import sys
+
+m = sys.modules['pandas.util.hashing']
+for t in ['hash_pandas_object', 'hash_array']:
+
+    def outer(t=t):
+
+        def wrapper(*args, **kwargs):
+            from pandas import util
+            warnings.warn("pandas.util.hashing is deprecated and will be "
+                          "removed in a future version, import "
+                          "from pandas.util",
+                          DeprecationWarning, stacklevel=3)
+            return getattr(util, t)(*args, **kwargs)
+        return wrapper
+
+    setattr(m, t, outer(t))
diff --git a/scripts/build_dist.sh b/scripts/build_dist.sh
index c9c36c18bed9c..d6a7d0ba67239 100755
--- a/scripts/build_dist.sh
+++ b/scripts/build_dist.sh
@@ -10,8 +10,10 @@ read -p "Ok to continue (y/n)? " answer
 case ${answer:0:1} in
     y|Y )
         echo "Building distribution"
+        rm -rf dist
+        git clean -xfd
         python setup.py clean
-        python setup.py build_ext --inplace
+        python setup.py cython
         python setup.py sdist --formats=gztar
     ;;
     * )