+ /** @brief Updates effects that were created using a different version of the underlaying filter than the one installed. */
+ void updateEffects();
+ /** @brief Updates the parameters according to the updateRules.
+ * @see the related in README in effects/update */
+ bool updateEffectParameters(const QDomNodeList ¶meters, const QScriptValue *updateRules, const double serviceVersion, const double effectVersion);