Explain what shipped, email stakeholders. Every one is ready to run, and you can adjust it in plain language.
Send stakeholders a linked release summary and flag missing details.
Your release contacts get a short note with links to completed issues, while you get a copy and any gaps that need attention.
Prepare a linked changelog draft for review before release.
Get a GitLab changelog draft in an issue, with changes grouped by type and linked to the work behind them.