WordPress 5.5 introduced native image lazy loading, enabled by default without a settings change. On WordPress 5.5 and newer this plugin does not modify images or enqueue frontend assets. Administrators see a notice that they can deactivate and delete the plugin. It respects any theme or plugin that disables core lazy loading. On WordPress 2.8 through 5.4 the original jQuery implementation remains available. Upgrade old WordPress installations when possible. This release preserves the legacy implementation’s existing limitations.
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