Bump version to 4.0.0b1

HISTORY.rst

@@ -11,7 +11,7 @@ PlatformIO 4.0
 
 `Migration Guide from 3.0 to 4.0 <http://docs.platformio.org/page/migration.html>`__.
 
-* `PlatformIO Plus Goes Open Source... <https://community.platformio.org/t/platformio-plus-goes-open-source-improving-embedded-development-community-worldwide/8240/4>`__
+* `PlatformIO Plus Goes Open Source <https://community.platformio.org/t/platformio-plus-goes-open-source-improving-embedded-development-community-worldwide/8240/4>`__
 
   - Open source `PIO Unified Debugger <http://docs.platformio.org/en/latest/plus/debugging.html>`__
   - Open source `PIO Unit Testing <http://docs.platformio.org/en/latest/plus/unit-testing.html>`__

platformio/__init__.py

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-VERSION = (4, 0, "0a23")
+VERSION = (4, 0, "0b1")
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"

platformio/managers/core.py

@@ -30,7 +30,7 @@ CORE_PACKAGES = {
     "contrib-piohome": "^2.1.0",
     "contrib-pysite":
     "~2.%d%d.190418" % (sys.version_info[0], sys.version_info[1]),
-    "tool-pioplus": "^2.4.0",
+    "tool-pioplus": "^2.5.2",
     "tool-unity": "~1.20403.0",
     "tool-scons": "~2.20501.7" if PY2 else "~3.30005.0"
 }