Contact person: Upgrade Magento 2.4.3-p3 → Magento 2.4.8-p2 with PHP 8.4

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Location: Rotterdam, Netherlands

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"Objective

Upgrade our current Magento 2.4.3-p3 multistore installation (~27,000 products) on Hypernode to Magento Open Source 2.4.8-p2 running on PHP 8.4, while maintaining existing functionality and ensuring a safe, zero-downtime deployment.

Current Environment

Magento version: 2.4.3-p3

Stores: Multistore (~27,000 products, multiple storefronts)

Hosting: Hypernode (currently staging + production on the same node)

PHP: Currently 7.4 / 8.1

Deployment: GitHub repository as single source of truth, Hypernode release directories with current symlink

Limitation: Hypernode supports only one PHP version per server

We will provide a new Hypernode instance with PHP 8.4 for staging

After successful acceptance on staging, rollout to production will follow

Scope of Work
Core Upgrade

Upgrade Magento from 2.4.3-p3 → 2.4.8-p2

Upgrade PHP from 7.4/8.1 → 8.4

Adjust system dependencies (MySQL 8.4 LTS or MariaDB 11.4 LTS, Redis/Valkey, Varnish, RabbitMQ 4.x quorum queues)

Replace Elasticsearch (unsupported in 2.4.8) with OpenSearch 2.x (recommended 2.19)

Run DB schema/data migrations and ensure indices and search are functional

Extensions & Theme

We will provide updated versions of commercial extensions (Amasty, Mirasvit, Swissup, Fooman, MultiSafepay, etc.) where required

Exception: BoostMyShop Embedded ERP and related modules (AdvancedStock, Supplier, DropShip, ERP, etc.)

No vendor support is available

Developer must apply necessary fixes/patches for Magento 2.4.8 and PHP 8.4 compatibility

Modules to be removed (disable + uninstall, no upgrade effort):

BoostMyShop_PointOfSales

BelVG_ClearBolCom

BelVG_OrderDataSerializer

Aheadworks_SocialLogin

OlegKoval_RegenerateUrlRewrites

TIG_PostNL

Active modules to maintain (examples, not exhaustive):

Theme / Swissup Argento: ArgentoChic, ThemeEditor, Navigationpro, ProLabels, etc.

Mirasvit: Optimize (CSS/JS/HTML/Image), Search, SEO, CacheWarmer, Feed, Blog, Helpdesk, GTM, etc.

Payment/Shipping: MultiSafepay Connect, DPD Connect, WebShopApps MatrixRate

ERP: BoostMyShop ERP suite (must be patched where needed)

Other: Amasty, Aheadworks Giftcard, Fooman, Wyomind, etc.

Deliverables

Pre-upgrade assessment

Extension compatibility matrix (current vs. target version, required action, risks)

Server preflight (PHP/DB/Redis/Varnish versions, OPcache/memory settings)

Rollback plan (DB + code)

Upgrade on new staging node (PHP 8.4)

Composer update to 2.4.8-p2

Replace Elasticsearch with OpenSearch 2.x

Upgrade/patch required modules

Fix PHP 8.4 compatibility issues

Run DI compile, static content deploy, cache warmup

Full regression testing

Acceptance testing

We perform functional checks on staging

Developer addresses issues before production rollout

Production rollout

Deploy via release directories + current symlink

Zero-downtime switch

Reindex, verify cronjobs/consumers, confirm cache warmers and feeds

Documentation

Report with exact steps ([login to view URL] diff, module updates, config changes, patches applied)

List of disabled/removed modules

Short upgrade manual for future updates

Support

Post-upgrade support period (e.g. 14–30 days)

Testing Requirements

Frontend: Homepage, category pages, layered navigation (Mirasvit), search (autosuggest, typo handling, facets), PDP media, add-to-cart, minicart

Checkout: Guest + customer checkout, MultiSafepay methods, shipping options (DPD Connect, MatrixRate), order placement

Admin: Product save, cache clean, PageBuilder (TinyMCE 7), promotions (catalog/cart rules), BMS ERP flows (stock, supplier, purchase)

Jobs/Integrations: Cron, queue consumers, CacheWarmer, feed exports, SMTP emails

Search: Reindexing, relevance tests, synonyms, stopwords

Performance: Compare baseline vs. post-upgrade (LCP/TTFB), error log monitoring

Expectations from Developer

We are looking for an experienced Magento developer or team who will:

Take the lead in this upgrade project

Be proactive in asking technical and content questions

Provide a clear upgrade plan before starting work

Work with Git properly (branches, pull requests, commits)

Communicate clearly (EN/NL) and deliver documentation

Provide weekly progress reports throughout the project

Planning & Timeline

Project start (latest): October 1st

Final delivery deadline: November 30th

Production rollout only after staging acceptance

Pricing: fixed project price OR estimated hours with rate" (client-provided description)