diff --git a/CHANGELOG.md b/CHANGELOG.md
index d38dd82..75e3344 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [2.0.0] - 2022-09-30
+- Adds PHP 8.x support and drops support for PHP <= 7.x
+
 ## [1.10.4] - 2020-10-06
 - Support Guzzle version 7 in composer.json.
 
@@ -109,7 +112,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 - Initial release.
 
-[Unreleased]: https://github.com/taxjar/taxjar-php/compare/v1.10.4...HEAD
+[Unreleased]: https://github.com/taxjar/taxjar-php/compare/v2.0.0...HEAD
+[2.0.0]: https://github.com/taxjar/taxjar-php/compare/v1.10.4...v2.0.0
 [1.10.4]: https://github.com/taxjar/taxjar-php/compare/v1.10.3...v1.10.4
 [1.10.3]: https://github.com/taxjar/taxjar-php/compare/v1.10.2...v1.10.3
 [1.10.2]: https://github.com/taxjar/taxjar-php/compare/v1.10.1...v1.10.2
diff --git a/README.md b/README.md
index cd249aa..93386f1 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ composer require taxjar/taxjar-php
 ```json
 {
   "require": {
-    "taxjar/taxjar-php": "^1.10"
+    "taxjar/taxjar-php": "^2.0"
   }
 }
 ```
diff --git a/lib/TaxJar.php b/lib/TaxJar.php
index 99a8b0a..14ab31c 100644
--- a/lib/TaxJar.php
+++ b/lib/TaxJar.php
@@ -3,7 +3,7 @@
 
 class TaxJar
 {
-    const VERSION = '1.10.4';
+    const VERSION = '2.0.0';
     const DEFAULT_API_URL = 'https://api.taxjar.com';
     const SANDBOX_API_URL = 'https://api.sandbox.taxjar.com';
     const API_VERSION = 'v2';