Function checkForUpdate

packages/core/api/src/update-check.ts:220–231

(
  currentVersion: string,
  options?: ResolveDistTagsOptions,
)

 * Best-effort: an unreachable registry yields `updateAvailable: false`.
 */
export const checkForUpdate = async (
  currentVersion: string,
  options?: ResolveDistTagsOptions,
): Promise<UpdateStatus> => {
  const channel = resolveUpdateChannel(currentVersion);
  const command = `npm i -g ${EXECUTOR_PACKAGE_NAME}@${channel}`;
  const tags = await resolveDistTags(options);
  const latestVersion = tags[channel] ?? null;
  const updateAvailable =
    latestVersion !== null && compareVersions(currentVersion, latestVersion) === -1;
  return { updateAvailable, currentVersion, latestVersion, channel, command };
};