Do we need to regression test everything on every release?

No, we build a risk-based approach that prioritizes critical and high-risk functionality rather than exhaustively testing every feature every time. This keeps regression cycles fast and sustainable.

What happens as our product grows and changes?

We actively maintain the regression suite alongside your product so it reflects current functionality rather than becoming outdated. An unmaintained regression suite gives false confidence, which is something we specifically guard against.

Can regression testing help us refactor legacy code more safely?

Yes, having a solid regression suite in place is one of the most effective ways to refactor or modernize legacy code with confidence. It gives the team a safety net that catches unintended side effects immediately.

Quality Engineering

Regression Testing

Quantum Altus builds and executes regression testing programs, blending automation and targeted manual checks, so every release protects what already works.

Discuss Regression Testing

Who It's For

Built For Teams Like Yours

Teams shipping frequent releases who need confidence nothing old broke

Products with a large, complex feature set where manual regression is impractical

Companies that have shipped a regression bug to production before

Engineering teams lacking a defined regression suite tied to critical flows

Businesses undergoing a major refactor or migration who need stability assurance

The Problem

Business Problems We Solve

New feature releases repeatedly break existing functionality that used to work

There is no defined regression suite, so coverage depends on individual memory

Manual regression testing takes so long it delays every release

The team is afraid to refactor or update dependencies due to fear of breaking things

Bugs that were previously fixed keep reappearing in later releases

What Quantum Altus Delivers

What You Get

A defined regression test suite covering critical and high-risk functionality

Risk-based prioritization identifying what must be tested on every release

Automated regression coverage for stable, high-value test cases

Manual regression checklist for areas not suited to automation

Regression test execution reports tied to each release cycle

A maintained suite that is updated as features change or expand

Key Capabilities

Features & Capabilities

Risk-Based Test Selection

We prioritize regression coverage based on which features are most critical and most likely to break, rather than trying to test everything every time. This keeps regression cycles fast without sacrificing what matters most.

Automated Regression Suite

Stable, high-value test cases are automated so they run quickly on every release without manual effort. This is what makes frequent regression testing sustainable over time.

Targeted Manual Checks

Areas not well-suited to automation, such as highly visual or rarely-changed flows, are covered by an efficient manual checklist. This balances thoroughness with practical effort.

Suite Maintenance

The regression suite is actively kept in sync with the product as features are added, changed, or removed. An outdated regression suite gives false confidence, which we specifically design against.

Release-Tied Reporting

Every release gets a clear regression report showing what was tested and what passed or failed. This gives release decision-makers concrete evidence, not just a verbal "should be fine."

Recurring Bug Prevention

We track previously fixed bugs and ensure they stay covered in the regression suite so they cannot silently reappear. This closes a common gap where the same issue resurfaces release after release.

Technology

Tech Stack

PlaywrightSeleniumCypressTestRailJiraXrayGitHub ActionsJenkins

Benefits

Why It Matters

Fewer previously-working features breaking with new releases

Faster release cycles through efficient, targeted regression coverage

Increased team confidence to refactor and update dependencies safely

Previously fixed bugs kept from silently reappearing

Clear, evidence-based go/no-go decisions for every release

A regression suite that stays useful instead of going stale

Delivery Approach

How We Deliver This

Discovery

Identify critical flows, high-risk areas, and past recurring bugs

Design

Build the risk-based regression scope and automation/manual split

Build

Develop the automated suite and document the manual checklist

Test

Execute the full regression suite against release candidates

Launch

Deliver a clear release-readiness report tied to regression results

Support

Maintain and expand the suite as the product evolves

FAQ

Regression Testing — FAQ

Regression testing is specifically focused on verifying existing functionality still works after a change, whereas test automation is the broader practice that regression testing often relies on. Not all automated tests are regression tests, and not all regression testing needs to be automated.

Explore More

Related Services & Products

Test Automation

We build maintainable automated test suites that give your team fast, reliable feedback on every code change.

Manual Testing

Our QA engineers execute thorough, exploratory, and scripted manual testing to catch what automation and assumptions miss.

CI/CD Quality Gates

We design automated quality gates in your CI/CD pipeline so untested or risky code cannot reach production unnoticed.

Legacy System Modernization

Modernize aging systems into secure, maintainable platforms without disrupting the operations that depend on them.

Ready to talk about regression testing?

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