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Mule 3 to Mule 4 Migration

With the Mule 3 end-of-life date looming, you might not be sure of the best way to migrate to Mule 4.  Good news, we're here to help!

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The time to migrate from Mule 3 to Mule 4 is NOW!


With MuleSoft 3.8 reaching it's End Of Life (EOL) on 16th November 2021 and MuleSoft 3.9 on Extended Support until 20th March 2024, you need to migrate off Mule 3.8 and work on a migration plan for any Mule 3.9 workloads. We recommend re-evaluating your application from 3 lenses - Strategic, Technology and Quality of Service.  With these three things in mind, you can determine the best course of action - either migrate largely as is or extend or enhance the application.  Whichever approach you choose, we've found the Mule Migration Assistant can help you do a lot of the heavy lifting. 

We can help you migrate


With our three-step plan, we help you evaluate your application, determine the best approach and then execute your migration.

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01 Evaluate

Your existing Mule 3 applications

We evaluate your application from 3 lenses - (i) map against your strategic direction (ii) assess your current IT landscape and (iii) consider any quality of service lessons learned over the life of the app in terms of availability, performance, scalability and reliability.

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02 Recommend

Options for the course of action

We provide recommendations based on our review and evaluation against the 3 lenses to help you decide whether to upgrade as is to Mule 4, consider upgrading to Mule 3.9 as an interim step or look at enhancing and/or extending your application.

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03 Migrate

Migrate and go-live!

We execute your migration by fully understanding your app and what it is trying to do.  Then, we run the Mule Migration Assistant, take care of any quick fixes, research and implement the alternative constructs that might be needed to replicate the desired functionality.  Finally, we take care of the post-migration tasks, test everything and take your upgraded application live!

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Why work with Rubicon Red?

We've been helping customers deliver enterprise software integration solutions for over a decade.  

We offer a range of MuleSoft services and have specific experience helping customers migrate from Mule 3 and other legacy platforms to Mule 4. 

  • Group 630 Proven MuleSoft experts with certified MuleSoft developers
  • Group 630 Best practices and accelerators to make your migration as seamless as possible
  • Group 630 Reduced costs with competitive rates based on our onshore/offshore model
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Helping our customers migrate

A big thank-you to the team at Rubicon for their seamless & successful delivery for the recent project undertaken. This was carried out via a thorough understanding of our organisation’s needs & was reciprocated with constant and clear communication throughout the project. We look forward to working on more projects together in the future.

Angelo Marcantonio | IT Operations Coordinator