Release changes (#7183)

Author: kimadeline

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Changelog
 
-## 2019.9.0 (27 August 2019)
+## 2019.9.0 (3 September 2019)
 
 ### Enhancements
 
@@ -29,6 +29,8 @@
 
 ### Fixes
 
+1. Delete the old session immediatly after session restart instead of on close
+   ([#6975](https://github.com/Microsoft/vscode-python/issues/6975))
 1. Add support for the "pathMappings" setting in "launch" debug configs.
    ([#3568](https://github.com/Microsoft/vscode-python/issues/3568))
 1. Supports error codes like ABC123 as used in plugins.

ThirdPartyNotices-Distribution.txt

@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Linting, Debugging (multi-threaded, remote), Intellisense, code formatting, refactoring, unit tests, snippets, and more.",
-    "version": "2019.9.0-rc",
+    "version": "2019.9.0",
     "languageServerVersion": "0.3.66",
     "publisher": "ms-python",
     "author": {