Everything You’ll Need to Note about Magento 2.3.4

With the increasing demand in the eCommerce industry, firms require a better platform with more functions to meet with what customers want. That’s why we have been waiting a long time for the upgrade Magento 2.3.4 release in January 2020, as a solution for the previous problems and might have plenty of new functions. Then, let us walk you through the highlights, Magento security and performance enhancements, and also some platform upgrades that Magento users might want to note.

If you’re interested in using Magento extensions that support Magento 2.3.4, then:

CHECK OUT our list for 94 Magento 2 Free Extensions and our Magento 2 B2B Extension Package for you to choose!

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Security-only patch available

The patch for time-sensitivity fixes only without the need for installing other functions that a full quarter release (for example, Magento 2.3.4) provides is now available. Patch package 2.3.3 – p1) fixes the vulnerability that existed in the last quarter version, which is Magento 2.3.3. Check for more information by following these links:

Magento Security Enhancements


Magento had grown a lot since its initial release back in 2008, and one of the reasons for its popularity is the advanced security that the platform provides. In Magento 2.3.4 security enhancements, the update brings 220 minor and important fixes and 30 major security upgrades.

The vulnerabilities of custom layout updates and the depreciation of layout updates are removed. This Magento security change is going to remove opportunities for Remote Code Execution (RCE). Magento 2.3.4 upgrade in security also includes site-crossing scripting potential exposures removal (XSS), to protect stores and customer engaging shopping online using Magento privacy.

The content template features of Magento in Magento 2.3.4 is also redesigned, now only whitelisted variables can be added to the list. This mitigates the possibility of the administrator-defines templates such as emails, newsletters, and CMS content that can contain variables that can directly call PHP functions on objects.


Magento Platform Upgrade

In terms of platform upgrades, Magento 2.3.4 update is worth noticing with their improvements to the website security and Payment Card Industry (PCI) compliance.

  • The Magento message queue framework optimized to support the latest release of RabbitMQ V3.8
  • The page caching and session storage was improved and tested on the latest stable release Redis v5.0.6
  • Prior to Magento 2.3.4, if using a declarative schema with MariaDB 10.2, Magento issues will occur with an error that indicates the schema was not up-to-date. The Magento 2.3.4 upgrade now supports declarative schema with both MySQL and MariaDB 10.2.

Magento Performance Boost

Magento 2.3.4 features have included new advances that result in a remarkable performance boost:

The banner cache logic was reconstructed, so that redundant non-cache servers were no more, which contribute to the increase in Magento performance.

Refactoring PHTML files now built with bundling mechanism to better assist parsing. The newly improved bundling mechanism can now identify all dependencies on Javascript.

Magento performance enhancements also include adding the disable report collection by default of Magento. A configuration (System Configuration > General > Reports > General Options)  now allows business users to completely or partially disable reports.


With Magento performance upgraded, merchants can now have better experiences from their eCommerce websites.

Infrastructure Improvements

The new version of Magento contains 250 enhancements to the core quality, which aid the infrastructure updates on modules such as catalog, sales, PayPal, Elasticsearch, import, and CMS.

Merchant tools enhancements

Magento 2.3.4 is now integrated with Adobe Stock image galleries. Therefore, it is now possible for shop owners to add high-quality images and videos to their websites without leaving the Magento Admin.

Inventory Management


The Magento Inventory Management system on Magento 2.3.4 also has a few improvements. The first enhancement in Magento inventory resolved the issues on the database server being higher load than expected that involve shopping cart.

Second, the Inventory Reservation CLI command is updated, which helps in reducing the memory usage to find and compensate for missing reservations.

The last item on Magento Inventory Management improvements is the solving of many quality Magento issues, such as credit memos, grouped products, source, and stock mass actions.

For more information on Magento Inventory bugs fixed, see the Inventory Management Release Notes.

GraphQL, PWA Studio, Dotdigital

The Magento 2.3.4 improvement in GraphQL focuses on better the search, layered navigation, and cart functionality.

  • Guest carts can now be merged on customer carts.
  • Customers can now shop and complete orders on different devices.
  • The layered navigation on Magento 2.3.4 now can be custom filtered.
  • You can search the categories based on product ID, SKUs, name, or URL keys.
  • The ProductInterface supported fixed product taxes.
  • The cart object has been enhanced to include information about the promotions and applied discounts, which are available at the line and cart levels.

With Dotdigital, Magento 2.3.4 offers Live Chat powered by them, which helps merchants in increasing the conversion rate and retain customers with real-time engagements. 

For information on PWA Studio updates, read PWA Studio Release Notes.

Fixed Issues

Magento 2.3.4 features also contain hundreds of fixes for Magento issues that exist in the core code. The fixes covered functions in backends such as cache, bundle products, cart and checkout, catalog, catalog inventory, CMS content, customer, and customer-related fixes.

To see all fixed Magento issues and additional information about the issues, check Fixed Issues on Magento 2.3.4 Release Notes.

Known Issues

Some issues exist in this release or will be fixed in the upcoming 2.3.5 that will be released next quarter will be listed below:

The release introduces an enhancement to the validation logic for customer data sections that aren’t compatible with pre-2.3.4 deployment. You cannot invalidate custom customer sections in etc/frontend/sections.xml by declaring an action node without specifying any related sections.

If customers order a Paypal Express Checkout, and the region shipping address was input in the text field rather than choose from the drop-down menu, then Magento 2.3.4 will indicate there is an error that occurred. One way to work around this issue is to use region patch for Magento 2.3.4 (Git-based or Composer-based). The fix for these issues is anticipated to come out in Magento version 2.3.5, scheduled to release by the end of April 2020.


How to download and install Magento 2.3.4


If you’re ready to install and begin exploring Magento 2.3.4 updates, then check out Magento download versions and how to get started Here.

Wrap up

We have concluded the Magento 2.3.4 features and new upgrades, and we hope that what we’ve provided would give you an insight on Magento 2.3.4, and will help you make a smart choice in managing your online business.

BSS Commerce is one of the leading Magento extension providers and web development services in the world. With experienced and certified Magento developers, we commit to bring high-quality products and services to optimize your business effectively.

CONTACT NOW to let us know your problems. We are willing to support you every time.

Magento Tester at | Posts

Charlie is an experienced Magento Tester and has started at BSSCommerce for some time. He loves writing about Magento products, e-commerce topics, and is a fan of all technical problems Magento related. If you have a question, he's happy to help.

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