Magento 2 already comes with a solid basic set of functions for operating an online store in its basic installation.

If you want to expand your online store, add functions or modules, or even implement completely different, new applications, you can currently (as of 05/2019) access around 3,500 extensions via the Magento Marketplace.

Nearly 8,000 additional extensions and developments are also available free of charge on the code hosting platform Github.

This version of Magento includes the first third-party extension that bundles with Magento Commerce - Magento Social. This extension connects your store to your Facebook business account and creates a page with products from your catalog. When customers click on a product, they are redirected to the corresponding product page in your Magento store.

Merchants can now use dotmailer to create their own transactional email templates. Magento's shipping features have also been enhanced.

General security improvements

This release includes enhancements to optimize the security of your Magento software. While there are no confirmed attacks related to these issues yet, certain vulnerabilities can potentially be exploited to access customer information or hijack administrator sessions. We recommend that you update your existing Magento software to the latest version as soon as possible.

• Serialize/unserialize has been removed from most code to improve protection against remote code execution attacks.
• Improved protection of code where the use of object serialization or unserialization was unavoidable.
• Also, the use of output escaping to protect against attacks has been strengthened.
• Multiple switching of store views no longer results in a storefront error.
• Significant platform security improvements, increase protection against future attacks.

Fixed issues that customers experienced when upgrading to Magento 2.2.4 in installations that include multiple sites. In Magento multi-store installations, the store-view-specific values from the store configuration settings were not used if those settings differed from the default global configuration settings. Instead, Magento used the default configuration for all store views.

With this version of Magento are thousands of new fixes to the core code and over several hundreds of security improvements. It includes the resolution of hundreds of GitHub issues by community contributors. Here they come to the bug fixes in the Magento 2.2 release notes.

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