I have used the following link to upgrade :- Link . But I am getting the below error
I am using PHP 7.3.25
Composer version 1.10.20
Current Magento Version: 2.3.4
- Installation request for magento/product-community-edition 2.4.2 -> satisfiable by magento/product-community-edition[2.4.2].
- magento/product-community-edition 2.4.2 requires colinmollenhour/cache-backend-redis 1.11.0 -> satisfiable by colinmollenhour/cache-backend-redis[1.11.0] but these conflict with your requirements or minimum-stability.
Any help would be appriciated. Thanks in advance.