Astro Release

Astro ships minor releases on a regular cadence. Each release follows the same pattern: a GitHub milestone, a set of Linear tickets tracking every step, and a two-day execution window (merge day + release day).

This skill covers both setup (creating the milestone and tickets) and release-day execution (completing the checklist tasks).

Setup: Create Milestone and Linear Tickets

When the user asks to set up a release, you need two pieces of information. Ask for anything not provided:

• Release version (e.g., 6.4)
• Release date (e.g., 2026-05-21) — this is the day the npm package ships

The merge day is always the day before the release date.

Before creating anything, check for existing work

Someone else may have already started setup. Always check first: