diff --git a/CHANGES.rst b/CHANGES.rst
index ab3e7d2a..0f804326 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -16,6 +16,7 @@ In Development
 - Remove ``Registry`` from top level namespace. Closes :issue:`354`.
 - Fix: Normalization rules defined within the ``items`` rule are applied. (Evgeny Odegov)
 - Update homepage URL in package metadata. Closes :issue:`382`.
+- Docs: add feature freeze note to CONTRIBUTING and note on Python support in README (Frank Sachsenheim).
 - Docs: add the intent of a ``dataclasses`` module to ROADMAP.md
 - Docs: update README link. Make it point to the new PYPI website. (Frank Sachsenheim)
 - Docs: improve documentation of the regex rule. Closes :issue:`389`.
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 9155a11e..b5f90a6b 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -6,6 +6,12 @@ There are many ways to contribute to open source projects: reporting bugs,
 helping with the documentation, spreading the word and of course, adding
 new features and patches.
 
+.. note::
+
+    There's currently a feature freeze until the basic code modernization for
+    the 2.0 release is finished. Have a look at the ``ROADMAP.md`` for a status
+    on its progress.
+
 Getting Started
 ---------------
 #. Make sure you have a GitHub account.
diff --git a/README.rst b/README.rst
index 94e351c2..fbc4e59b 100644
--- a/README.rst
+++ b/README.rst
@@ -23,6 +23,9 @@ yours.
 Versioning & Interpreter support
 --------------------------------
 
+The Cerberus `1.x` versions can be used with Python 2 while version `2.0` and
+later rely on Python 3 features.
+
 Starting with Cerberus 1.2, it is maintained according to
 `semantical versioning`_. So, a major release sheds off the old and defines a
 space for the new, minor releases ship further new features and improvements
diff --git a/ROADMAP.md b/ROADMAP.md
index 08a2aa81..11d57faa 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -2,7 +2,6 @@
 
 This document lays out a roadmap for the further development of Cerberus in the
 next few years, particularly in anticipation of the decay of Python 2.
-The current status is a **draft**, pull requests for changes are welcome.
 
 
 ## Assumptions
@@ -32,7 +31,7 @@ A *feature freeze* for functionality of the public API is declared.
 
 #### Checklist
 
-- [ ] The `README.rst` and `CONTRIBUTING.rst` are updated accordingly.
+- [x] The `README.rst` and `CONTRIBUTING.rst` are updated accordingly.
 - [ ] 1.3 is released.
 - [ ] 1.3.x branch is created.
 
@@ -55,7 +54,10 @@ implications.
 - [ ] Objects from the `typing` module can be used as constraints for the
       `type` rule. (#374)
 - [ ] The `schema` rule only handles mappings, a new `itemrules` replaces the
-      part where `schema` tested items in sequences so far. (#tba)
+      part where `schema` tested items in sequences so far. There will be no 
+      backward-compatibility for schemas. (#385)
+- [ ] The rules `keyschema` and `valueschema` are renamed to `keyrules` and
+      `valuerules`, backward-compatibility for schemas will be provided. (#385)
 - [ ] Implementations of rules, coercers etc. can and the contributed should be
       qualified as such by metadata-annotating decorators. (With the intend to
       clean the code and make extensions simpler.) (#372)