diff --git a/README.md b/README.md
index 823b57c..cbcf0b6 100644
--- a/README.md
+++ b/README.md
@@ -115,6 +115,12 @@ schema_plus_indexes is tested on
 
 ## Release Notes
 
+### v1.0.0
+
+* Drop AR < 5.2 and add 6.0 support
+* Drop Ruby < 2.5 and add Ruby 3.0 support
+* Remove its-it GEM
+
 ### v0.3.1
 
 * Support AR 5.2.   Thanks to [@jeremyyap](https://github.com/jeremyyap)
diff --git a/lib/schema_plus/indexes/version.rb b/lib/schema_plus/indexes/version.rb
index 7f6e81f..9b96f8a 100644
--- a/lib/schema_plus/indexes/version.rb
+++ b/lib/schema_plus/indexes/version.rb
@@ -1,5 +1,5 @@
 module SchemaPlus
   module Indexes
-    VERSION = "0.3.1"
+    VERSION = "1.0.0"
   end
 end