
Executive Summary
91mobiles/hub’s wordpress site was struggling with custom code in plugins, theme, and WordPress core files, hindered updates and stability. The client was not able to update theme, plugins, WordPress version and even PHP version. Our team extracted this code and integrated it into the Must-Use (MU) plugin. This solution improves the site updateability, stability, and functionality while preserving custom features added by the custom code. The client can now easily update theme, plugins, WordPress version and PHP version without losing the customizations they had made, enhancing the site’s long-term durability and performance.
✦ Our Approach :
- ﹣ Custom code was isolated and moved into an MU plugin for stability and easy updates.
- ﹣ We audited plugins, themes, and core files, then extracted all custom functionality.
- ﹣ Critical features were preserved by refactoring custom code into a dedicated MU plugin.
- ﹣ We removed theme/plugin conflicts and centralized custom logic for safer updates.
- ﹣ A clean, update-friendly structure was created by separating and securing custom code.
✦ Built With :

The Challenge:
- Extensive custom code was embedded in plugin and WordPress core files.
- Outdated theme prevented compatibility with modern WordPress standards.
- Blocked updates for plugins, theme, WordPress core, and PHP version.
- Increased security risks due to inability to patch vulnerabilities.
- Difficult maintenance caused by scattered and undocumented customizations.
Solution Implementation:
- Removed custom code from plugins and WordPress core files.
- Migrated essential customizations into a dedicated MU plugin.
- Updated WordPress, plugins, theme, and PHP to their latest versions.
- Reapplied custom theme modifications while preserving compatibility.
- Conducted thorough testing to ensure stability and visual consistency.
The Result:
Our optimization efforts led to significant improvements in the 91mobiles/hub site’s performance, stability, and ease of maintenance. By removing custom code from plugins and core files and migrating it to a Must-Use plugin, we ensured that the site could be easily updated without losing any custom functionalities.
- Enhanced Plugin Management: Plugins are now easily updatable, with new functionalities available without conflicts.
- Improved WordPress Core Stability: The WordPress core can be updated seamlessly, reducing security risks and enhancing overall stability.
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