diff --git a/CHANGELOG.md b/CHANGELOG.md
index e0ef80ee..24b9fd87 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Change Log
 
+## 1.0.0b3 - 2021-05-01
+
+- 👌 IMPROVE: Add `RendererProtocol` type, for typing renderers (thanks to [@hukkinj1](https://github.com/hukkinj1))
+- 🔧 MAINTAIN: `None` is no longer allowed as a valid `src` input for `StateBase` subclasses
+
 ## 1.0.0b2 - 2021-04-25
 
 ‼️ BREAKING: Move `mdit-py-plugins` out of the core install requirements and into a `plugins` extra.
diff --git a/markdown_it/__init__.py b/markdown_it/__init__.py
index 434cd892..a28a3f0a 100644
--- a/markdown_it/__init__.py
+++ b/markdown_it/__init__.py
@@ -1,4 +1,4 @@
 from .main import MarkdownIt  # noqa: F401
 
 
-__version__ = "1.0.0b2"
+__version__ = "1.0.0b3"