diff --git a/CHANGELOG.md b/CHANGELOG.md
index 648e3a5..10ed2cf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,13 @@
 All notable changes to this project will be documented in this file.
 This project aims to adhere to [Semantic Versioning](http://semver.org/).
 
-# 0.2.0 / Unreleased
+## 0.3.0 / 2021-04-11
+
+- Crystal 0.35.1 removed Errno, so was removed in code as well #15
+- Update to support Crystal 1.0.0 #16
+- Minor doc tweaks
+
+## 0.2.0 / 2020-03-14
 
 - Crystal 0.34.0 replaced the Error condition <https://github.com/crystal-lang/crystal/pull/8885>
 - **Breaking** Crystal 0.20.3 stopped automatic client hostname resolution, requiring a full IP address
@@ -13,6 +19,6 @@ This project aims to adhere to [Semantic Versioning](http://semver.org/).
 - (Internal) Use the `Number::Primitive` from Crystal 0.17.0
 - Minor doc updates
 
-# 0.1.0 / 2016-04-01
+## 0.1.0 / 2016-04-01
 
 - Initial release, supporting all statsd spec & extended spec for histograms and tags.
diff --git a/shard.yml b/shard.yml
index 832b367..6a370cb 100644
--- a/shard.yml
+++ b/shard.yml
@@ -4,6 +4,6 @@ version: 0.3.0
 authors:
   - Mike Fiedler <miketheman@gmail.com>
 
-crystal: ">= 0.34.0"
+crystal: ">= 0.35.1"
 
 license: MIT