Drupal Version Upgrade Services
Upgrade Version: Drupal 7 -> Drupal 8 -> Drupal 9 -> Drupal 9 -> Drupal 10 -> Drupal 10 -> Drupal 11.
Our Approach:
- Module & Theme Audit: Inventory custom and contrib extensions; flag deprecated APIs
- Data Migration: Map content types, fields, and configurations through each major release
- Custom Code Refactoring: Update hooks, plugins, and service classes to new core standards
- Testing & QA: Automated regression tests plus user-acceptance checks in staging
- Performance Tuning: Enable BigPipe, advanced caching layers, and PHP-level optimizations
| Phase | Activities | Deliverables |
|---|---|---|
| 1. Discovery & Audit | • Inventory all enabled modules, themes, and custom code • Identify deprecated APIs and data structures | • Audit report with risk assessment • Recommended module/theme replacements or patches |
| 2. Planning & Strategy | • Define upgrade breaks between major versions • Map data migration flow (e.g., fields to config schema) | • Milestone plan (version-by-version) • Rollback & rollback-test strategy |
| 3. Development & Migration | • Set up parallel dev environments for each upgrade step • Run core Migrate API scripts • Refactor custom hooks/services to new plugin architecture | • Migrated codebase per version • Migration logs and mapping tables |
| 4. Testing & QA | • Automated PHPUnit/Behat tests on migrated sites • Manual smoke tests (content, forms, workflows) | • Test reports with pass/fail status • UAT session notes |
| 5. Performance Tuning | • Enable and configure BigPipe, Internal Page Cache, and Drupal’s Dynamic Page Cache • PHP–FPM/OPcache tuning | • Performance benchmark (pre- vs. post-upgrade) • Caching configuration files |
| 6. Deployment & Support | • Zero-downtime release via blue-green or rolling deployments • 30-day hypercare period for hotfixes | • Deployment runbook • Post-go-live support ticket log |