Open Source
Version Migration Services

Upgrading a major version of Kafka, PostgreSQL, or Kubernetes isn't just a configuration change — it's a project. DepKeep engineers have done it hundreds of times. We deliver compatibility analysis, runbooks, and hands-on cut-over support so your team can focus on the business, not the plumbing.

End-to-End Migration Support,
Not Just a Runbook PDF

DepKeep engineers are on the keyboard with you — from the first compatibility assessment through to post-migration stability monitoring.

Compatibility & Dependency Analysis

We map every breaking change between your current and target versions, cross-referenced against your application code, configuration, and third-party integrations.

Step-by-Step Migration Runbooks

Detailed, environment-specific runbooks covering every step — schema changes, configuration updates, dual-write patterns, and rollback procedures — reviewed by your team before execution.

Zero-Downtime Cut-Over

We design blue-green or rolling upgrade strategies to eliminate maintenance windows — including dual-version compatibility layers where the target application requires it.

Rollback Planning

Every migration plan includes a tested rollback path. We validate rollback procedures in staging before any production change is attempted.

Data Migration & Validation

For databases and stateful services, we handle schema migrations, data format transformations, and post-migration integrity validation — with checksums and row-count verification.

Post-Migration Monitoring

For 30 days after cut-over, we monitor key metrics for regression — latency, error rates, query performance — and resolve any issues that surface from real production traffic.

A Proven Migration Process
Refined Across Hundreds of Projects

01

Assessment & Risk Mapping

We analyse breaking changes, deprecations, and compatibility requirements across your full dependency graph and application codebase.

02

Runbook Development

We build environment-specific migration runbooks with every step, script, and decision point documented — reviewed and signed off by your engineering lead before execution.

03

Staging Dry-Run

The full migration is executed in a production-like staging environment. We validate performance, data integrity, and application compatibility before any production change.

04

Production Cut-Over & Monitoring

We run the production migration alongside your team with a dedicated DepKeep engineer on the bridge — ready to execute the rollback plan at any sign of trouble.

Migrations We Handle
Every Day

PostgreSQL 12 / 13 PostgreSQL 16 / 17

Logical replication, extension compatibility, query plan changes, and pg_upgrade validation.

Apache Kafka 2.x Apache Kafka 3.x / 4.x

KRaft migration, consumer group protocol updates, and offset reset handling.

OpenJDK 8 / 11 OpenJDK 17 / 21 LTS

Module system migration, deprecated API removal, GC tuning for the new runtime.

Elasticsearch 7.x Elasticsearch 8.x

Index mapping changes, security model update, and API compatibility layer removal.

Kubernetes 1.2x Kubernetes 1.3x

Deprecated API groups, admission webhook updates, and node upgrade sequencing.

Redis 6.x Redis 7.x / Valkey

ACL changes, multi-exec behaviour, and Cluster topology rolling upgrade.

When Migrations Stall,
DepKeep Gets Them Moving

EOL Version Risk

Teams running EOL software who need to migrate before LTS coverage ends or before regulatory deadlines force an emergency upgrade.

Stalled Internal Projects

Migration projects that started internally but stalled — typically due to complexity, risk aversion, or competing engineering priorities — that need an expert injection to restart.

Cloud or Platform Moves

Teams lifting and shifting to a new cloud provider or managed service that requires a version upgrade alongside the infrastructure change.

Compliance-Driven Deadlines

Regulated organisations with hard deadlines to patch or upgrade specific components due to audit findings or regulatory guidance.

We've Migrated These Projects
Dozens of Times

Click any project to see its current version history, release cadence, and CVE status in our OSS Hub.

Browse All 500+ Technologies →

Our Other Services

Let's Get Your Stack
to a Supported Version

Tell us where you are and where you need to be. We'll come back with a realistic migration plan and timeline within one business day.

+47 957 99 490
hello@depkeep.com

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