Caching.ClearOtherCachedVersions

Удаляет из кэша все кэшированные версии AssetBundle, за исключением указанной версии.

Возвращает false, если используется какой-либо кэшированный пакет.

using UnityEngine;

public class Example : MonoBehaviour
{
    void ClearOtherCachedVersionsExample(AssetBundle bundleToSave, string manifestBundlePath)
    {
        AssetBundle manifestBundle = AssetBundle.LoadFromFile(manifestBundlePath);
        AssetBundleManifest manifest = manifestBundle.LoadAsset<AssetBundleManifest>("AssetBundleManifest");

        //This will clear all the cached version of this asset bundle except for this specific cached version
        bool success = Caching.ClearOtherCachedVersions(bundleToSave.name, manifest.GetAssetBundleHash(bundleToSave.name));

        if (!success)
        {
            Debug.Log("Unable to clear the caches");
        }

        //Unload the AssetBundle
        manifestBundle.Unload(true);
    }
}