diff --git a/changelog/2024/12-16-release-2024.12.21.md b/changelog/2024/12-16-release-2024.12.21.md
new file mode 100644
index 0000000..b2ddab9
--- /dev/null
+++ b/changelog/2024/12-16-release-2024.12.21.md
@@ -0,0 +1,8 @@
+---
+slug: "2024.12.21"
+title: "2024.12.21: ZTC 1.0 check on doube BT and IOT"
+---
+
+| Component | Relevance for consumers (English)                                                                                                            | Relevance for end users (Dutch)                                                                                                    |
+| --------- | -------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------- |
+| ZTC       | Version 1.0 of the ZTC raises an error when publication of a besluittype (BT) or informatieobjecttype (IOT) would lead to a double BT or IOT | Je krijgt nu in Rx.Mission bij het publiceren een waarschuwing als je een dubbel besluittype of dubbel informatieobjecttype maakt. |