Magento Open Source 2.4.3 is out from 10 August 2021 for all the Magento Merchants. The latest Magento 2.4.3 delivers improvements in performance and security.

1. Everything About the Magento Open Source 2.4.3 Release
Notes
Magento Open Source 2.4.3 is out now.It’s available to use from 10 August2021 for all
the Magento Merchants. The latest Magento 2.4.3 draws out improvements in
performance as well as security. Magento 2.4.3 release involves built-in-rate limiting and
security advancements where reCAPTCHA coverage has been augmented. Moreover,
third-party libraries and core dependencies have been updated to the latest versions that
are fully adaptable with PHP 8.x.
With the new release, Page Builder is now handy as a bundled extension in Magento. It’s
now the preset content editing tool for Adobe Commerce as well as Magento Open
Source. Magento store owners can fully revamp their stores.This latest release involves
more than 370 new tweaks and 33 security improvements. All issues present in Magento
2.4.2 have been resolved in this latest release.
Magento2.4.3 Highlights
As a store owner, you can now upgrade your web store to the latest Magento Open Source
2.4.3 and offer your customers a seamless online shopping experience. Let’s dig out more
on what the new version has to offer!
Massive SecurityImprovements
No proven attacks related to the below-mentioned issues have occurred to date. However,
certain vulnerabilities can access user info or take over admin sessions. Thus,security
improvements for this release meet the latest security best practices that include:
 33 security tweaks as well as platform enhancements that support close RCE and
cross-site scripting vulnerabilities.
 A new Composer plugin is handy with Adobe Commerce 2.4.3 release package. It
minimizes the risk ofsecurity vulnerability i.e. Dependency confusion. It also

2. detects malicious packages with the ditto names as internal packages in the public
repository.
 Rate limiting is now built-in to Magento APIs to block DoS attacks. Web APIs
now enforce constraints on the size or amount ofresources thatcan be requested
by a client.
 Expanded ReCAPTCHA coverage with the latest Magento Open Source 2.4.3
involves web APIs that have equivalent HTML pages. This coverage also defends
endpoints from spam strikes.
 ReCAPTCHA protection for the place order page as well as payment-related web
APIs is disabled by default and can be enabled from the dashboard. This coverage
derives an anti-brute force mechanism to save stores from carding threats.
Infrastructure Upgrade
The quality ofthe framework has been improvised with the advancements in
certain functional areas:
 Customer Account
 Product Catalog
 CMS
 OMS
 Import/Export
 Promotions as well as Targeting
 Shopping Cart as well as Checkout
 B2B
 Staging as well as Preview
Platform Improvements
Magento 2.4.3 is not yet fully compatible with PHP 8.x.However, the following platform
tweaks bring it near to future adaptability with PHP 8.x.
 Core Composer dependencies,as well as third-party libraries, have been upgraded
to make them compatible with PHP 8.x.
 The KnockoutJS library now runs on the latest version 3.5.1.
 The TinyMCE v3 library has been taken down.
 Magento 2.4.3 has been tested and is compatible with Redis 6.0.12.
 Laminas library dependencies are now compatible with PHP 8.x.
 Some redundant dependencies have been wiped out from the composer.json file.
Performance Optimizations

3. This release includesvariousperformance tweaksthat include:
Reduction in indexation time for Product Price as well as Catalog Rule indexers.
Magento merchants will now be able to exclude a site for a specific user group.
Reduction in the number ofindexing records and improvement in indexing time.
GraphQL
Magento Open Source 2.4.3 release will drive the coverage ofGraphQL to shared routes.
Route query,as well as the routable interface, will handle routing requests on the
product, category,and CMS pages.
Route query has taken over the functionality ofURL Resolver query.
Page Builder
Page Builder is now accessible as a bundled extension in Magento Open Source 2.4.3. It’s
the content editing tool for Adobe Commerce 2.4.3 as well as Magento 2.4.3 by default. It
can take over the WYSIWG editor with any third-party module. All the content developed
in TinyMCEhas been transferred into Page Builder as HTML. In addition,Page Builder
reinstates the TinyMCE editor in these Admin zones:
CMS Page
CMS Block
Category Description
Product Description
The Bottom Line
Looking at the advancements as well as tweaks with the release ofthe latest Magento
Open Source 2.4.3,all must be thinking about updating their Magento 2 store to the latest
version.We, at Clap Creative, have high-end Magento developers to help you transfer
your store from Magento 2.4.2 to Magento 2.4.3 efficiently.So, reach us now and deliver a
seamless UX with the top-notch features ofMagento 2.4.3.