0.7.0

indexnowkit/sitemap is optional again (docs/spec/16, wave C): the package suggests it instead of requiring it.
Configuration keys, command names, bindings and the facade do not change.

Changed

• indexnowkit/sitemap is no longer installed automatically. If you use indexnow:sitemap, run
  composer require indexnowkit/sitemap; otherwise, after composer update, the command reports that the package is
  missing and exits with code 1. Requires indexnowkit/core ^0.5.1.
• Without the package: indexnow:sitemap is Console\SitemapNotInstalledCommand (same name, every argument and
  option accepted and ignored, prints indexnowkit/sitemap is not installed: composer require indexnowkit/sitemap,
  exit 1); indexnow:check prints sitemap: not installed (composer require indexnowkit/sitemap), or sitemap: not installed, the sitemap block in the configuration is ignored (…) when config/indexnow.php changed the block from
  the package defaults; Config\ConfigFactory ignores the sitemap block as a whole (no "unknown option" warning);
  SitemapConfig, SitemapSourceInterface, SitemapSpoolCheck and SitemapRunner are not bound. Nothing is logged
  at boot or on a request.
• The sitemap bindings moved to Sitemap\SitemapServices, registered only when Sitemap\SitemapSupport::installed()
  holds (the predicate; @internal SitemapSupport::$installed forces it in tests). Only relevant if you reach into
  the provider yourself.