4 files changed, 12 insertions, 14 deletions
diff --git a/docs/type_system/buffer.md b/docs/type_system/buffer.md
index dca8ab9..f351b4f 100644
--- a/docs/type_system/buffer.md
+++ b/docs/type_system/buffer.md
@@ -38,6 +38,8 @@ Array[Generic.T] `alias Buffer[[TYPE] Generic.T]
 
 ## ``pop`
 
+## ``reverse`
+
 ## ``join`
 
 ## ``split`
diff --git a/docs/type_system/empty.md b/docs/type_system/empty.md
index 2fae1e7..5903c19 100644
--- a/docs/type_system/empty.md
+++ b/docs/type_system/empty.md
@@ -8,7 +8,7 @@ Container type can be null
 %empty
 ```
 
-## Use with `Option` Union
+## Use with `Result` Union
 
 ```text
 make_array : ([yes]
diff --git a/docs/type_system/function.md b/docs/type_system/function.md
index af17b74..78abdf7 100644
--- a/docs/type_system/function.md
+++ b/docs/type_system/function.md
@@ -95,7 +95,7 @@ Invoked regular expression matcher
 
 ## \`yield
 
-Yielding wraps the value in the transient union `Next`
+Yielding wraps the value in the transient union `Iteration`
 
 Return `Void` to stop iteration
 
diff --git a/docs/type_system/union.md b/docs/type_system/union.md
index 2572591..f4b0b04 100644
--- a/docs/type_system/union.md
+++ b/docs/type_system/union.md
@@ -3,7 +3,7 @@
 ---
 
 ```text
-Union[CONTAINER | TRANSIENT | TRANSIENT_GENERIC] Collection[VAR_TREE_LIST; TYPE.SYMBOL]]
+Union[TAG | TRANSIENT] Collection[VAR_TREE_LIST; TYPE.SYMBOL]]
 ```
 
 ## Type Body Object Definitions
@@ -17,7 +17,9 @@ typedef struct {
 # Alias
 
 ```text
-Tag[Collection[VAR_TREE_LIST; TYPE.SYMBOL]] `alias Union[[CONTAINER] Collection[VAR_TREE_LIST; TYPE.SYMBOL]]
+Tag[Collection[VAR_TREE_LIST; TYPE.SYMBOL]] `alias Union[[TAG] Collection[VAR_TREE_LIST; TYPE.SYMBOL]]
+
+Transient[Collection[VAR_TREE_LIST; TYPE.SYMBOL]] `alias Union[[TRANSIENT] Collection[VAR_TREE_LIST; TYPE.SYMBOL]]
 ```
 
 ## Tag Example
@@ -37,22 +39,16 @@ u : Tag[I64.a; I64.b; I64.c] $ (.c : 5)
 
 # Transient Unions
 
+Return multiple types from a function
+
 Can only be retuned from functions and operations. The inner value must be moved out
 
 ## Alias
 
 ```text
-Transient_generic[Generic.T] `alias Union[[TRANSIENT_GENERIC] Generic.T.value]
-
-Result[Generic.T] `alias Union[[TRANSIENT] Generic.T.value; Error.error]
-
-Option[Generic.T] `alias Union[[TRANSIENT] Generic.T.value; Void.null]
-
-Next[Generic.T] `alias Union[[TRANSIENT] Generic.T.value; Void.done]
-
-Next_result[Generic.T] `alias Union[[TRANSIENT] Generic.T.value; Error.error; Void.done]
+Result[Generic.T] `alias Transient[Generic.T.value; Void.null; Error.error]
 
-Next_option[Generic.T] `alias Union[[TRANSIENT] Generic.T.value; Void.null; Void.done]
+Iteration[Generic.T] `alias Transient[Generic.T.value; Void.null; Void.done; Error.error]
 ```
 
 ## Default Operation