diff --git a/README.md b/README.md
index 4edb41cf..99fa8a7d 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,14 @@
 
 *Monorepo for our various Rust + Matrix crates.*
 
-This will eventually be the home of all of our Rust crates.
+## Minimum Rust version
+
+Ruma currently requires Rust 1.43.0. In general, we will never require beta or
+nightly for crates.io releases of our crates, and we will try to avoid releasing
+crates that depend on features that were only just stabilized.
+
+The exception to this is ruma-signatures (and hence ruma with the federation-api
+feature) since it depends on [ring][], which is only guaranteed to work on the
+latest stable.
+
+[ring]: https://github.com/briansmith/ring/
diff --git a/ruma-api/README.md b/ruma-api/README.md
index a75064c3..ff32448a 100644
--- a/ruma-api/README.md
+++ b/ruma-api/README.md
@@ -7,10 +7,6 @@
 **ruma-api** contains core types used to define the requests and responses for each endpoint in the various [Matrix](https://matrix.org/) API specifications.
 These types can be shared by client and server code for all Matrix APIs.
 
-## Minimum Rust version
-
-ruma-api requires Rust 1.40.0 or later.
-
 ## Documentation
 
 ruma-api has [comprehensive documentation](https://docs.rs/ruma-api) available on docs.rs.
diff --git a/ruma-client-api/README.md b/ruma-client-api/README.md
index a58f0978..6fd8c984 100644
--- a/ruma-client-api/README.md
+++ b/ruma-client-api/README.md
@@ -8,10 +8,6 @@
 **ruma-client-api** contains serializable types for the requests and responses for each endpoint in the [Matrix](https://matrix.org/) client API specification.
 These types can be shared by client and server code.
 
-## Minimum Rust version
-
-ruma-client-api requires Rust 1.40.0 or later.
-
 ## Contributing
 
 See [CONTRIBUTING.md](CONTRIBUTING.md).
diff --git a/ruma-events/README.md b/ruma-events/README.md
index 347aedb8..85208c25 100644
--- a/ruma-events/README.md
+++ b/ruma-events/README.md
@@ -6,10 +6,6 @@
 
 **ruma-events** contains serializable types for the events in the [Matrix](https://matrix.org/) specification that can be shared by client and server code.
 
-## Minimum Rust version
-
-ruma-events requires Rust 1.40.0 or later.
-
 ## Documentation
 
 ruma-events has [comprehensive documentation](https://docs.rs/ruma-events) available on docs.rs.
diff --git a/ruma-federation-api/README.md b/ruma-federation-api/README.md
index 29e4dbc4..e044c401 100644
--- a/ruma-federation-api/README.md
+++ b/ruma-federation-api/README.md
@@ -3,10 +3,6 @@
 **ruma-federation-api** contains serializable types for the requests and responses for each endpoint in the [Matrix](https://matrix.org/) Federation API specification.
 These types can be shared by client and server code.
 
-## Minimum Rust version
-
-ruma-federation-api requires Rust 1.40.0 or later.
-
 ## Documentation
 [https://docs.rs/ruma-federation-api](https://docs.rs/ruma-federation-api)
 
diff --git a/ruma-identifiers/README.md b/ruma-identifiers/README.md
index 34a9f2ed..74102fdd 100644
--- a/ruma-identifiers/README.md
+++ b/ruma-identifiers/README.md
@@ -6,10 +6,6 @@
 
 **ruma-identifiers** contains types for [Matrix](https://matrix.org/) identifiers for events, rooms, room aliases, and users.
 
-## Minimum Rust version
-
-ruma-identifiers requires Rust 1.36.0 or later.
-
 ## Documentation
 
 ruma-identifiers has [comprehensive documentation](https://docs.rs/ruma-identifiers) available on docs.rs.
diff --git a/ruma-serde/README.md b/ruma-serde/README.md
index 5288aa54..7102b30a 100644
--- a/ruma-serde/README.md
+++ b/ruma-serde/README.md
@@ -6,7 +6,3 @@ Part of that is a fork of serde_urlencoded, with support for sequences in `Deser
 `Serialize` structs (e.g. `Vec<Something>`) that are (de)serialized as `field=val1&field=val2`
 (instead of the more common `field[]=val1&field[]=val2` format supported by other crates like
 `serde_qs`).
-
-## Minimum Rust version
-
-ruma-serde requires Rust 1.36.0 or later.
diff --git a/ruma-signatures/README.md b/ruma-signatures/README.md
index 720dd575..08e030d9 100644
--- a/ruma-signatures/README.md
+++ b/ruma-signatures/README.md
@@ -9,11 +9,3 @@ ruma-signatures provides functionality for creating digital signatures according
 ## Documentation
 
 ruma-signatures has [comprehensive documentation](https://docs.rs/ruma-signatures) available on docs.rs.
-
-## Minimum Rust version
-
-ruma-client-api is only guaranteed to work on the latest stable version of Rust.
-
-This support policy is inherited from the dependency on [ring][].
-
-[ring]: https://github.com/briansmith/ring/