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

How to call one phtml file into another phtml file in magento

1. In Magento we can call one phtml file into another phtml file very easily.For example we have created one phtml file in our theme template named  mylogic.phtml into folder named mylogic
app/design/frontend/default/YourTheme/template/mylogic/mylogic.phtml
and you want to call this phtml file in footer.phtml
 

Simply put this code in footer.phtml

    <?php echo $this->getLayout()->createBlock('core/template')->setTemplate('mylogic/mylogic.phtml')->toHtml(); ?> 


2. If you want to call one phtml file to another using xml file then you can use this:-
    In your theme Local.xml under default handler put this xml block code


app/design/frontend/default/YourTheme/layout/local.xml
<default>
<reference name="footer">
<block type="core/template" name="mylogic" template="mylogic/mylogic.phtml"/>
</reference>
</default>

and then in your theme footer.phtml you can call this phtml as $this->getChildHtml()

app/design/frontend//default/YourTheme/template/page/html/footer.phtml

<?php echo $this->getChildHtml('mylogic'); ?>


3.How to call phtml file in cms page or static block

{{block type="core/template" name="mylogic" template="mylogic/mylogic.phtml"}}


4.How to call static block by Layout xml  file

for example we have created static block with identifier  mylogic and we want to call this in left column .Then we can use this code
 put this code in your theme local.xml 
 app/design/frontend/default/YourTheme/layout/local.xml

<reference name="left">
    <block type="cms/block" name="mylogic" before="-">
      <action method="setBlockId"><block_id>mylogic</block_id></action>
   </block>
 </reference>

if you want to call static block for specific page then you can put this code in Custom Layout Update XML  secion under  design tab section of your cms page .