diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..dfe780c
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,9 @@
+# 0.3.0 (June 10, 2020)
+
+### Breaking changes
+- Require [`v2::OutputPins`](https://github.com/rust-embedded/embedded-hal/blob/9e6ab5a1ee8900830bd4fe56f0a84ddb0bccda3f/src/digital/v2.rs)
+- [`OutputPin` is now taken by ownership](https://github.com/kellerkindt/w5500/blob/d02bbf7e5cc837e658671d1467305523136376cc/src/lib.rs#L131) instead of mut refs [#13](https://github.com/kellerkindt/w5500/issues/13)
+
+### Changes
+- Upgrade to Rust 2018 Edition
+- Many doc updates, thanks @jonahbron 
diff --git a/README.md b/README.md
index f6c056c..3735f23 100644
--- a/README.md
+++ b/README.md
@@ -65,14 +65,14 @@ of the SPI implementation.  It must be set up to work as the W5500 chip requires
     active.set_subnet(IpAddress::new(255, 255, 255, 0)).unwrap();
     active.set_gateway(IpAddress::new(192, 168, 0, 1)).unwrap();
 
-    let socket0: UninitializedSocket = w5500.take_socket(Socket::Socket0).unwrap();
-    let udp_server_socket = (&mut w5500, socket0).try_into_udp_server_socket(1234).unwrap();
+    let socket0: UninitializedSocket = active.take_socket(Socket::Socket0).unwrap();
+    let udp_server_socket = (&mut active, socket0).try_into_udp_server_socket(1234).unwrap();
 
     let mut buffer = [0u8; 256];
     let response = [104, 101, 108, 108, 111, 10];// "hello" as ASCII
     loop {
-        if let Ok(Some((ip, port, len))) = udp_server_socket.receive(&mut buffer[..]) {
-            udp_server_socket.blocking_send(ip, port, response[..]).unwrap();
+        if let Ok(Some((ip, port, len))) = (&mut active, udp_server_socket).receive(&mut buffer[..]) {
+            (&mut active, udp_server_socket).blocking_send(ip, port, response[..]).unwrap();
         }
     }
 ```
@@ -87,4 +87,3 @@ In no particular order, things to do to improve this driver.
 * Make reset safe by requiring that all sockets be returned to the pool first
 * Support a 3-wire SPI bus
 * Sane defaults for IP/Gateway/Subnet
-* Improve documentation