# GitHub — GitHub Copilot suggests custom properties definitions

- Company: GitHub (github.com)
- Announced: 2026-09-15T19:07:47+00:00
- Category: capability-change
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://github.blog/changelog/2026-09-15-github-copilot-suggests-custom-properties-definitions
- Record: https://forck.live/items/10975-github-copilot-suggests-custom-properties-definitions
- Subject: Copilot

GitHub Copilot now suggests allowed values when administrators create custom property definitions for repositories, available in public preview for Copilot Business and Enterprise plans.

## Evidence

Verbatim from https://github.blog/changelog/2026-09-15-github-copilot-suggests-custom-properties-definitions:

> GitHub Copilot can now suggest allowed values when you create a custom property for repositories in your organization.

---

Record: https://forck.live/items/10975-github-copilot-suggests-custom-properties-definitions
Catalogue: https://forck.live/llms.txt
Current issue: https://forck.live/feed.md