diff --git a/History.md b/History.md
index e79b4cd..80e94ec 100644
--- a/History.md
+++ b/History.md
@@ -1,6 +1,13 @@
 # Release History for MDBX
 
 ---
+## v0.2.1 [2021-04-06] Mahlon E. Smith <mahlon@martini.nu>
+
+Enhancement:
+
+- Automatically stringify any argument to the collection() method.
+
+
 ## v0.2.0 [2021-03-19] Mahlon E. Smith <mahlon@martini.nu>
 
 Enhancement:
diff --git a/lib/mdbx.rb b/lib/mdbx.rb
index 8be9aa0..ba6878c 100644
--- a/lib/mdbx.rb
+++ b/lib/mdbx.rb
@@ -10,7 +10,7 @@ require 'mdbx_ext'
 module MDBX
 
 	# The version of this gem.
-	VERSION = '0.2.0'
+	VERSION = '0.2.1'
 
 end # module MDBX