UKWhich OpenText Exstream version should we move to?
A practical guide for UK and European teams on older Exstream, HP Exstream or Exstream 16 releases: how the release lines work, what to check before you choose, and how to upgrade without changing what customers receive.
Move to a current, supported release line, but choose it on evidence
For most organisations the right target is a current, supported release of OpenText Communications (Exstream), on the deployment model that suits you: on-premises, private cloud or OpenText cloud. The exact release depends on four things: your support position, your infrastructure, the features you need, and how much change your templates can absorb in one step.
Do not pick a version from a slide. OpenText publishes its support lifecycle and a version comparison for Communications. Check your current release against both before you plan anything.
Why this question keeps coming up
Many UK and European insurers, banks and public bodies still run Exstream releases installed years ago, sometimes still branded HP Exstream. They work, so they were left alone. Then one of three things happens: support status changes, the infrastructure underneath needs replacing, or a regulation such as the European Accessibility Act or FCA Consumer Duty asks for output the old release cannot easily produce.
What has changed in newer releases
OpenText now presents Exstream as part of OpenText Communications. Newer releases bring a browser-based design and editing experience, better options for business users to change approved content, container-based deployment, and improved accessible PDF output. Your existing applications, packaged files and templates can usually be carried forward, but they need to be tested.
Six things to check
Answer these and the right release line usually becomes obvious.
Support status
Where your current release sits on OpenText's support lifecycle, and how long the target release will be supported.
Infrastructure
Operating systems, databases and servers the target release supports, and whether you want to move to containers or cloud.
Features you need
Accessible PDF/UA output, business-user editing, interactive documents or new channels such as SMS and email.
Integrations
How Exstream is called today: batch, on demand, from SAP, Guidewire, Duck Creek or a core banking system.
Template estate
How many applications and templates you have, how many are still used, and which can be retired before you move.
Your release cadence
How often you can test and release. A team that upgrades once a year needs a different plan from one on a quarterly rhythm.
An upgrade that customers never notice
Inventory
We list every application, template, font, driver and integration, and confirm what is still in use.
Target and route
We recommend a release line and a route: direct, or staged through an intermediate release if that is safer.
Compare output
We run the same data through old and new versions and compare the output page by page before sign-off.
Cut over
We go live with a rollback plan, then hand over documentation so your team can run it.
Questions about Exstream upgrades
Can we go straight from HP Exstream to a current release?
Often yes, with the right preparation. The inventory shows whether a direct route or a staged one is safer for your applications.
Will our documents change?
They should not, unless you choose to change them. Font rendering and print drivers can differ between releases, which is why we compare output before sign-off.
Should we move to OpenText cloud at the same time?
Only if it suits your organisation. Upgrading and changing hosting in one step adds risk. Many teams upgrade first and move hosting later.
How long does it take?
It depends on the number of applications, templates and integrations. After the inventory you get a plan with phases and dates rather than a guess.
Not sure which release is right?
Our Exstream Health Check tells you where you stand, which release to target and what the upgrade involves, in writing.
Start a conversation
Tell us your platform, version and what you need. A specialist will reply, not a sales team. The first 30-minute call is free and without obligation.
Send an enquiryor email enquiries@thebentech.co.uk
