Atlassian has officially announced that Atlassian Data Center products will reach end of life on March 28, 2029, at 11:59 PM PST. This decision marks a turning point for organizations still running on Atlassian Data Center — and the impact will be very different from the previous Atlassian Server end of life.
Why Atlassian Is Ending Data Center Support
Since Jira and Confluence Cloud launched in 2011, Atlassian has steadily invested in the scalability, security, and compliance of its cloud platform. With industries being reshaped by AI and digital-first work, Atlassian is doubling down on cloud as the platform that can best serve customers now and into the future.
Today, 99% of Atlassian customers are already on, or moving to, cloud, and 75% of enterprises and regulated organizations have a cloud footprint. Cloud customers are seeing meaningful results, from up to 300% ROI through consolidation, to teams delivering value 80% faster.
How Atlassian Data Center EOL Differs From Server
When Atlassian Server reached end of life, customers could keep their environments running unsupported. With Atlassian Data Center, it’s different: after March 28, 2029, all sites will transition to read-only with no exceptions. That means no new work, no project updates, and no way to “buy extra time.” For organizations that depend on Atlassian tools to run their operations, this hard cutoff leaves no room for delay.
Plan Backwards From 2029
On paper, 2029 seems far away. In practice, you should be working toward a mid-2028 migration deadline. Here’s why:
- A cloud migration takes at least 6 months to complete once execution begins.
- Planning, discovery, and budgeting typically add another 6–12 months.
- That means organizations should have budgets secured by 2026 and be well into migration execution by 2027.
To meet this timeline, we recommend completing a Cloud Migration Readiness (CMR) assessment by mid-2026. This ensures you have the necessary data, inventory, and budget alignment in place before timelines get tight.
What Atlassian Data Center Customers Should Do Next
If you are currently running Atlassian Data Center, now is the time to start planning your move. Every migration is unique: some will be straightforward lifts into cloud, while others may involve consolidation, integrations, or additional governance requirements.
The good news is that partners like Highway Three Solutions are here to help. We’ve guided dozens of organizations—public sector, enterprise, and regulated industries—through the process of moving from Atlassian Data Center and Server to Atlassian Cloud, or Cloud to Cloud, or from other tools to Cloud. Everything, basically!
Limited Options for Smaller Data Center Customers
Another factor Atlassian has made clear: customers with fewer than 500 active users on DC will have fewer support options available. While larger enterprises will continue to receive direct guidance from Atlassian, smaller environments will need to lean on partners for expertise.
This is where Highway Three Solutions comes in. We know that many smaller or mid-sized Data Center customers still have real security and compliance barriers to overcome before moving to cloud. Without internal Atlassian experts, those barriers can feel impossible.
How Highway Three Solutions Can Help
We provide specialized support for Atlassian Data Center customers of all sizes — particularly those with fewer than 500 users. Our team understands the challenges unique to these environments and offers:
- Hands-on migration planning tailored to your scale and compliance needs.
- Security and governance expertise to address internal barriers and external regulations.
- Step-by-step execution support, reducing risk and minimizing disruption.
- Post-migration optimization, helping you unlock the full potential of Atlassian Cloud, including AI-driven features and improved ROI.
Preparing for the End of Atlassian Data Center
The Atlassian Data Center end of life is a fixed, non-negotiable deadline. To avoid a last-minute scramble, organizations should treat mid-2028 as the true migration finish line — and work backwards from there.
Start with a Cloud Migration Readiness assessment in 2026, budget and plan in 2027, and complete your migration no later than mid-2028.
Highway Three Solutions is here to guide you through every stage of this journey. If your organization is still running on Atlassian Data Center, now is the time to start planning for the future.
We invite you to connect with our team to discuss what this announcement means for your environment, and to start shaping a tailored transition plan.