Prep version 1.8.6

CHANGES.txt

@@ -1,3 +1,36 @@
+1.8.6 (2020-01-21)
+------------------
+
+Experimental Features
+~~~~~~~~~~~~~~~~~~~~~
+
+- The SameSite value now includes a new option named "None", this is a new
+  change that was introduced in
+  https://tools.ietf.org/html/draft-west-cookie-incrementalism-00
+
+  Please be aware that older clients are incompatible with this change:
+  https://www.chromium.org/updates/same-site/incompatible-clients, WebOb does
+  not enable SameSite on cookies by default, so there is no backwards
+  incompatible change here.
+
+  See https://github.com/Pylons/webob/issues/406
+
+- Validation of SameSite values can be disabled by toggling a module flag. This
+  is in anticipation of future changes in evolving cookie standards.
+  The discussion in https://github.com/Pylons/webob/pull/407 (which initially
+  expanded the allowed options) notes the sudden change to browser cookie
+  implementation details may happen again.
+
+  In May 2019, Google announced a new model for privacy controls in their
+  browsers, which affected the list of valid options for the SameSite attribute
+  of cookies. In late 2019, the company began to roll out these changes to their
+  browsers to force developer adoption of the new specification.
+  See https://www.chromium.org/updates/same-site and
+  https://blog.chromium.org/2019/10/developers-get-ready-for-new.html for more
+  details on this change.
+
+  See https://github.com/Pylons/webob/pull/409
+
 1.8.5 (2019-01-03)
 ------------------
 

setup.py

@@ -25,7 +25,7 @@
 
 setup(
     name='WebOb',
-    version='1.8.5',
+    version='1.8.6',
     description="WSGI request and response object",
     long_description=README + '\n\n' + CHANGES,
     classifiers=[