diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd4dbad..9f8312d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,12 +2,19 @@
 
 ### New Features
 
+- Add `context_user_fields` statement to allow custom context user fields.
+- Add `token_user_fields` statement to allow custom token user fields.
+- Add `on_token_node` statement to allow custom code when constructing token nodes.
+- Add `free_token_node` statement to allow custom code when freeing token nodes.
 - Add `p_context_delete()`.
+- Allow `drop` patterns to execute lexer user code blocks.
 
 ### Breaking Changes
 
 - Replace `p_context_init()` with `p_context_new()` and `p_context_delete()`.
 - Renamed `p_free_tree()` to `p_tree_delete()`.
+- The `free_token_node` statement now takes a user code block instead of a
+  function name parameter.
 
 ## v3.0.0
 
diff --git a/UPGRADING.md b/UPGRADING.md
index 38ad368..50709c1 100644
--- a/UPGRADING.md
+++ b/UPGRADING.md
@@ -9,6 +9,8 @@
 - Add a call to `p_context_delete()` (for C or C++) after lexing/parsing to
   reclaim context memory.
 - Rename `p_free_tree()` calls to `p_tree_delete()`.
+- Change `free_token_node` statement calls from taking a function name argument
+  to taking a user code block.
 
 ## v3.0.0