diff --git a/Cargo.toml b/Cargo.toml
index d1ca31661d..70606c881f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ authors = [
 ]
 categories = ["concurrency", "embedded", "no-std"]
 description = "Real Time For the Masses (RTFM): a concurrency framework for building real time systems"
-documentation = "https://rtfm-rs.github.io/cortex-m-rtfm/book/en"
+documentation = "https://rtfm.rs/"
 edition = "2018"
 keywords = ["arm", "cortex-m"]
 license = "MIT OR Apache-2.0"
diff --git a/README.md b/README.md
index ff33da9859..68f3fbb7d3 100644
--- a/README.md
+++ b/README.md
@@ -43,9 +43,9 @@ A concurrency framework for building real time systems.
 
 - Applications must be written using the 2018 edition.
 
-## [User documentation](https://japaric.github.io/rtfm5/book/en)
+## [User documentation](https://rtfm.rs)
 
-## [API reference](https://japaric.github.io/rtfm5/api/rtfm/index.html)
+## [API reference](https://rtfm.rs/api/rtfm/index.html)
 
 ## Acknowledgments
 
diff --git a/book/en/src/preface.md b/book/en/src/preface.md
index 15aaea5ce7..1728062b67 100644
--- a/book/en/src/preface.md
+++ b/book/en/src/preface.md
@@ -11,7 +11,10 @@ There is a translation of this book in [Russian].
 
 [Russian]: ../ru/index.html
 
-**HEADS UP** This is an **alpha** pre-release; there may be breaking changes in
+This is the documentation of v0.5.x of RTFM; for the documentation of version
+v0.4.x go [here](../../0.4/book/en).
+
+**HEADS UP** This is a **beta** pre-release; there may be breaking changes in
 the API and semantics before a proper release is made.
 
 {{#include ../../../README.md:5:44}}
diff --git a/ci/install.sh b/ci/install.sh
index aa7012050e..cbc2125b5d 100644
--- a/ci/install.sh
+++ b/ci/install.sh
@@ -4,7 +4,7 @@ main() {
     # these are not needed for doc builds
     if [ $TRAVIS_BRANCH != master ] || [ $TRAVIS_PULL_REQUEST != false ]; then
         if [ $TARGET = x86_64-unknown-linux-gnu ]; then
-            ( cd .. && cargo install microamp-tools --version 0.1.0-alpha.3 -f )
+            ( cd .. && cargo install microamp-tools --version 0.1.0-alpha.2 -f )
             rustup target add thumbv6m-none-eabi thumbv7m-none-eabi
         fi