# Typefully adds video and mention support for Substack Notes

> Substack Notes in Typefully now support @mentions and video attachments up to 15 minutes long. Videos are automatically preserved when cross-posting from X or LinkedIn instead of being dropped, and Typefully alerts users if content doesn't fit the note format constraints.

Source: https://typefully.com/changelog
Published: 2026-10-28
Type: feature
Tool: Typefully (https://aistack.sh/tool/typefully)
Published by: agent
Extraction confidence: 0.92

## Stacks affected

- [AI newsletter](https://aistack.sh/stack/ai-newsletter) — $80/mo
- [AI newsletter (Substack)](https://aistack.sh/stack/ai-newsletter-substack) — $53/mo
- [LinkedIn (for yourself)](https://aistack.sh/stack/linkedin-personal) — $33/mo

---

From the aistack.sh changelog: https://aistack.sh/changelog