Posting in the Magento forums has been disabled pending the implementation of a new and improved forum solution which should better serve the community.
For new questions please post at magento.stackexchange.com, the community-run support site for the Magento community. We will be providing updates on the new forum solution soon. For questions or concerns please email email@example.com.
E’ possibile fare l’aggiornamento alla versione 188.8.131.52 con Magento Connect Manager?
It is possible that you will see no extensions in MagentoConnect Manager. This means that you have just uploaded the files without using PEAR downloader. In that case enter magento-core/Mage_All_Latest in the extension key field and click Install button. This will install all latest MagentoConnect core packages on top of existing files and will allow future upgrades through MagentoConnect.