Compatibility matrix
The PHP or framework version is no longer supported. PHP, extensions, framework, packages, server and external services. The decision is documented with owners, boundaries and a concrete way to verify it.
Controlled compatibility
PHP version upgrades with tests, phases and a recovery path
We upgrade the runtime, framework and dependencies without treating migration as a single leap. We inventory incompatibilities, protect critical flows and deploy with a known rollback path.
InventoryRuntime, extensions, libraries and services.
CoverageTests focused on actual risk.
DeliveryPhases, observation and rollback.
An upgrade is more than changing a version number
The hard part is usually abandoned dependencies, implicit behavior, extensions, data and operational steps that were never documented.
- The PHP or framework version is no longer supported.
- Composer cannot resolve current packages without breaking others.
- There is no representative environment for rehearsal.
- Critical flows depend on informal manual checks.
- A previous upgrade caused regressions or extended downtime.
From a symptom to a capability the team can operate
We do not treat each need as an isolated feature. We connect the problem to data, rules, dependencies, people and operations so the solution remains understandable after delivery.
Change inventory
Composer cannot resolve current packages without breaking others. Errors, deprecations and dependencies requiring replacement. The decision is documented with owners, boundaries and a concrete way to verify it.
Regression coverage
There is no representative environment for rehearsal. Tests protecting critical flows before changing the runtime. The decision is documented with owners, boundaries and a concrete way to verify it.
Rehearsal environment
Critical flows depend on informal manual checks. Repeatable configuration to validate code, data and operations. The decision is documented with owners, boundaries and a concrete way to verify it.
Release plan
A previous upgrade caused regressions or extended downtime. Phases, windows, checks and owners. The decision is documented with owners, boundaries and a concrete way to verify it.
What the work leaves in place
Final scope is agreed against available evidence and the risk to reduce.
PHP, extensions, framework, packages, server and external services.
Errors, deprecations and dependencies requiring replacement.
Tests protecting critical flows before changing the runtime.
Repeatable configuration to validate code, data and operations.
Phases, windows, checks and owners.
Triggers, procedure and data preservation.
Visible decisions from start to finish
Inventory
Versions, dependencies and critical flows.
Protect
Tests and validation environment.
Migrate
Small changes and progressive compatibility.
Release
Observation, criteria and rollback.
How we know the work is creating value
For PHP upgrade we do not measure progress by code volume. We look for verifiable change in behaviour, risk, team autonomy and operating capability.
We first agree which situation must change and what evidence will demonstrate the outcome. It may be a flow no longer dependent on manual steps, a rehearsed recovery, a centralized rule or a signal enabling earlier diagnosis. Without that reference, a technically correct delivery may still miss the problem.
We then verify that the capability can be maintained: code is reviewable, data retains integrity, failures have a known response and important decisions do not depend on oral memory. Closure includes remaining boundaries and next priorities rather than a promise of perfection.
- Verified behaviour and acceptance criteria.
- Documented risks, assumptions and exclusions.
- Prepared release, observation and recovery.
- Accessible knowledge for continued evolution.
What must be decided with context
We make conditions and limits explicit to avoid universal recommendations.
The right path depends on compatibility, coverage and change size.
Upgrade, replace, isolate or remove is decided package by package.
Downtime tolerance shapes the delivery strategy.
Questions before starting
Answers about scope, evidence and ways of working.
Can several versions be skipped?
Sometimes, but dependencies, deprecations, coverage and rollback capability determine the safe path.
Must the framework be upgraded at the same time?
Not always. Separating runtime and framework can reduce risk, although some combinations must move together.
How do you avoid breaking production?
Through inventory, regression tests, representative rehearsal, observed delivery and a practical rollback.
What happens to unmaintained dependencies?
We decide whether to replace, isolate, temporarily accept or remove each one.
Content connected to this decision
Continue with diagnosis, execution or related experience.
First conversation
Let’s discuss what your PHP application needs
Tell us about the context, the main blocker and the outcome you need. We will reply with the questions required for an initial assessment.
- No commercial commitment
- Direct contact with the team
- Your details are not sold to third parties