diff --git a/CHANGES.md b/CHANGES.md
index 18c4e394..92f82f8c 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,12 +1,20 @@
+# 3.1.0
+- [All Changes](https://github.com/wikimedia/less.php/compare/v3.0.0...v3.1.0)
+* PHP 8.0 support: Drop use of curly braces for sub-string eval (James D. Forrester)
+* Make `Directive::__construct` $rules arg optional (fix PHP 7.4 warning) (Sam Reed)
+* ProcessExtends: Improve performance by using a map for selectors and parents (Andrey Legayev)
+* build: Run CI tests on PHP 8.0 too (James D. Forrester)
+* code: Fix PSR12.Properties.ConstantVisibility.NotFound (Sam Reed)
+
 # 3.0.0
-- [All Changes](https://github.com/wikimedia/less.php/compare/2.0.0...3.0.0)
+- [All Changes](https://github.com/wikimedia/less.php/compare/v2.0.0...v3.0.0)
 - Raise PHP requirement from 7.1 to 7.2.9 (James Forrester)
 - build: Upgrade phpunit to ^8.5 and make pass  (James Forrester)
 - build: Install php-parallel-lint  (James Forrester)
 - build: Install minus-x and make pass  (James Forrester)
 
 # 2.0.0
-- [All Changes](https://github.com/wikimedia/less.php/compare/1.8.2...2.0.0)
+- [All Changes](https://github.com/wikimedia/less.php/compare/1.8.2...v2.0.0)
 - Relax PHP requirement down to 7.1, from 7.2.9 (Franz Liedke)
 - Reflect recent breaking changes properly with the semantic versioning (James Forrester)
 
diff --git a/lib/Less/Version.php b/lib/Less/Version.php
index d6624ef8..2d05c384 100644
--- a/lib/Less/Version.php
+++ b/lib/Less/Version.php
@@ -8,7 +8,7 @@
  */
 class Less_Version {
 
-	public const version = '3.0.0';			// The current build number of less.php
+	public const version = '3.1.0';			// The current build number of less.php
 	public const less_version = '2.5.3';		// The less.js version that this build should be compatible with
 	public const cache_version = '253';		// The parser cache version