diff --git a/2024/12.md b/2024/12.md
index b9e906bf..d16bf179 100644
--- a/2024/12.md
+++ b/2024/12.md
@@ -115,6 +115,8 @@ When applicable, use these emoji as a prefix to the agenda item topic.
     |:-----:|:-------:|-------|-----------|
     | 3     | 5m      | [Intl.DurationFormat](https://github.com/tc39/proposal-intl-duration-format) Correct spec bug resulting in fraction digits and rounding mode options being ignored. ([PR](https://github.com/tc39/proposal-intl-duration-format/pull/203/)) | Ben Allen |
     | 2.7   | 15m     | [`Error.isError](https://github.com/tc39/proposal-is-error/issues/7) to stage 3? | Jordan Harband |
+    | 1     | 30m   | [Immutable ArrayBuffer](https://github.com/tc39/proposal-immutable-arraybuffer) to stage 2? | Mark Miller |
+    | 0     | 60m   | Stabilize (link TBD) to stage 1? | Mark Miller |
 
 1. Longer or open-ended discussions
 
@@ -144,6 +146,8 @@ When applicable, use these emoji as a prefix to the agenda item topic.
 
 <!-- Constraints supplied more than three days before the meeting should go here -->
 
+Mark Miller: Monday 2 December will be hard for me to attend (due to travel). So at least my presentations will need to be elsewhen. TBD which other presentations I feel I need to attend.
+
 #### Late-breaking Schedule Constraints
 
 <!-- Constraints supplied less than three days before the meeting should go here -->