diff --git a/README.md b/README.md
index 7f1fd21..4938788 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,8 @@ Prophet is on PyPI, so you can use `pip` to install it. From v0.6 onwards, Pytho
 
 ```bash
 # Install pystan with pip before using pip to install prophet
-pip install pystan
+# pystan>=3.0 is currently not supported
+pip install pystan==2.19.1.1
 
 pip install prophet
 ```
@@ -83,6 +84,21 @@ Make sure compilers (gcc, g++, build-essential) and Python development tools (py
 
 ## Changelog
 
+### Version 1.0 (2021.03.28)
+
+- Python package name changed from fbprophet to prophet
+- Fixed R Windows build issues to get latest version back on CRAN
+- Improvements in serialization, holidays, and R timezone handling
+- Plotting improvements
+
+### Version 0.7 (2020.09.05)
+
+- Built-in json serialization
+- Added "flat" growth option
+- Bugfixes related to `holidays` and `pandas`
+- Plotting improvements
+- Improvements in cross validation, such as parallelization and directly specifying cutoffs
+
 ### Version 0.6 (2020.03.03)
 
 - Fix bugs related to upstream changes in `holidays` and `pandas` packages.
diff --git a/docs/_docs/installation.md b/docs/_docs/installation.md
index 0d68f98..d634034 100644
--- a/docs/_docs/installation.md
+++ b/docs/_docs/installation.md
@@ -38,7 +38,7 @@ Prophet is on PyPI, so you can use pip to install it:
 ```
 # bash
 # Install pystan with pip before using pip to install prophet
-$ pip install pystan
+$ pip install pystan==2.19.1.1
 $
 $ pip install prophet
 ```