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Implementation Reference

• src/google_play_mcp/server.py:233-274 (handler)

  The handler for the update_release tool.

  @mcp.tool()
  def update_release(
      package_name: str,
      track: str = "production",
      rollout_percentage: Optional[float] = None,
      status: Optional[str] = None,
      version_codes: Optional[list[int]] = None,
  ) -> str:
      """Update rollout percentage and/or status of an existing release.
  
      Examples: increase rollout (rollout_percentage=50), complete (=100),
      halt (status="halted"), resume (status="inProgress").
  
      NOTE: With Managed Publishing enabled, changes are held pending approval.
      Call publish_managed_release to send live.
  
      Args:
          package_name: Package name, e.g. com.example.myapp
          track: Track to update. Default "production".
          rollout_percentage: New rollout % (0–100). Pass 100 to complete.
          status: "inProgress", "halted", "completed", or "draft".
          version_codes: Filter to release containing these codes. Default: first release found.
      """
      try:
          result = _publisher().update_release(
              package_name=package_name,
              track=track,
              rollout_percentage=rollout_percentage,
              version_codes=version_codes,
              status=status,
          )
          return json.dumps(
              {
                  "success": True,
                  "message": "Release updated successfully.",
                  "track": _format_track(result["track"]),
                  "editId": result.get("commit", {}).get("editId"),
              },
              indent=2,
          )
      except Exception as exc:
          return json.dumps({"success": False, "error": str(exc)}, indent=2)