Magento Open Source 2.4.3  Available 

1.) PayPal Pay Later is now supported in deployments that include PayPal. This feature allows shoppers to pay for an order in bi-weekly installments instead of paying the full amount at time of purchase.

2.)The KnockoutJS library has been upgraded to v3.5.1 (the latest version)

3.)Magento 2.4.3 has been tested and confirmed to be compatible with Redis 6.0.12. (Magento 

2.) 4.x remains compatible with Redis 5.x.)

4.)Page Builder is now available as a bundled extension in Magento Open Source. It is now the default content editing tool for Adobe Commerce 2.4.3 and Magento Open Source 2.4.3. It can replace the WYSIWG editor with any third-party module.

5.)Magento now turns off validation on the Price field as expected when the Dynamic price setting is enabled during bundle product creation. Previously, Magento threw a validation error when you removed a value from the Price field when the Dynamic price setting was enabled