public static function createPrevNextCache($container) {
$setting = \Civi::settings()->get('prevNextBackend');
if ($setting === 'default') {
+ // For initial release (5.8.x), continue defaulting to SQL.
+ $isTransitional = version_compare(\CRM_Utils_System::version(), '5.9.alpha1', '<');
$cacheDriver = \CRM_Utils_Cache::getCacheDriver();
$service = 'prevnext.driver.' . strtolower($cacheDriver);
- return $container->has($service)
+ return $container->has($service) && !$isTransitional
? $container->get($service)
: $container->get('prevnext.driver.sql');
}