WinGet Releaser is a GitHub Action that automates publishing application releases to the Windows Package Manager (WinGet). When triggered by a GitHub release, it fetches release assets, uses the komac tool to generate/update WinGet manifests, and submits a pull request to the microsoft/winget-pkgs repository. The action supports configurable version retention, installer filtering, and custom release notes. Core functionality resides in a PowerShell script that handles input validation, release data fetching, fork synchronization, komac execution, and version cleanup. The action relies on external tools (gh CLI, komac) but encapsulates complex WinGet publishing logic into a reusable CI component.