diff --git a/backlog.tasks b/backlog.tasks
index a30cf58..257c79d 100644
--- a/backlog.tasks
+++ b/backlog.tasks
@@ -30,8 +30,8 @@ Documentation:
 ☐ Add comparison section vs. other TS pattern-matching libs in Readme.md
     ☐ Why do we do this? => exhaustiveness encoded type safe
     ☐ Why this form? little syntax, data last, very small, autocomplete, strict typing in the handler; for more features use ts-pattern
-☐ Write migration guide for users coming from discriminated unions
-☐ Create backlog tasks for implementation
+✔ Write migration guide for users coming from discriminated unions @done (9/24/2026, 10:21:17 PM)
+✔ Create backlog tasks for implementation @done (9/24/2026, 10:21:16 PM)
 ✔ Validate code fences in Markdown (start with README.md) — compile the TypeScript examples against `src/` so the docs cannot drift from the API @done
 
 Maintenance: