Introduction
Celona offers the flexibility to upgrade components such as Edge, Access Points (AP), and Sites with just a click, streamlining your network's upgrade management. Starting from software release 2406, the upgrade option is available to customer admin users, allowing greater control over the deployment of software updates. Admins can schedule, modify, and delete upgrades using the Celona Orchestrator.
What's new in 2026.1: rolling upgrades. Starting with release 2026.1, upgrades are rolling by default. Instead of upgrading every Edge node or every AP at the same time, components upgrade a few at a time, in sequence. This keeps your site serving devices while the upgrade is in progress, instead of taking everything down together.
You start and track upgrades exactly as before, from the same pages. What changes is how the upgrade is paced, and how much per-component progress detail you can see while it runs.
Note: Rolling upgrade behavior applies to components that are already running 2026.1 or later. Components on an earlier release are upgraded using the previous behavior. The Orchestrator handles this automatically and no action is needed from you. Refer this article to understand how rolling upgrade works.
Accessing Upgrade Settings
Login to the Celona Orchestrator using your Admin credentials.
On the main Menu, navigate to Admin Settings → Software Upgrades.
The Software Upgrades page lists all the network components, such as Edges and APs, that can be upgraded.
Upgrade Features
Celona’s upgrade feature allows customer admin users to schedule, modify, and delete software upgrades for Edge, APs, and Sites.
Note: The Schedule Upgrade feature, accessible via the options menu, is available starting from software release 2406. However, this feature will only be visible if your network components are on a minimum software version of 2402.
Schedule Upgrade
The Software Upgrades page provides an option to plan and schedule upgrades at convenient times. The admin can initiate the upgrade right away or schedule it for a future time (a maximum of seven days from now).
Upgrade Now
At the far right end of each component, there are three dots (options menu). Click on the options menu to see the Schedule option, which will open the Schedule Upgrade window.
In the “Schedule Upgrade” window, select the release version.
The Upgrade Now option allows you to quickly upgrade an Edge or AP. To do so, check the “Upgrade Now” checkbox.
Select the required check box containing the note, “Please note that your network might experience some downtime once the upgrade begins. We recommend making this change during a maintenance window.”
Click the “UPGRADE” button to start the upgrade immediately.
Schedule an Upgrade
At the far right end of each component, there are three dots (options menu). Click on the options menu to see the Schedule option, which will open the Schedule Upgrade window.
In the “Schedule Upgrade” window, select the release version, date, and time.
Do not check the “Upgrade Now” checkbox.
Select the required check box containing the note, “Please note that your network might experience some downtime once the upgrade begins. We recommend making this change during a maintenance window.”
Click the “UPGRADE” button to schedule the upgrade.
Modifying a Scheduled Upgrade
If you need to adjust the details of a scheduled upgrade, such as changing the time, date, or version, you can modify the upgrade using the options provided in the Celona Orchestrator.
Note: You can only modify a scheduled upgrade if it has not started and is more than 5 minutes before it starts.
Here’s how to modify an upgrade:
At the far right end of the component you want to modify the upgrade, there are three dots (options menu). Click on the options menu to see the “Edit” option, which will open the Schedule Upgrade window.
You can modify the “Date” and “Time” or select “Upgrade Now” to start the upgrade immediately.
Click the “UPDATE” button to modify the settings.
Deleting a Scheduled Upgrade
Note: You can delete a scheduled upgrade if it has not started and is more than 5 minutes before it starts.
At the far right end of the component you want to deelte the upgrade, there are three dots (options menu). Click on the options menu to see the “Delete” option, which will open the “Confirm Action” pop-up window.
Click on “Yes” to cancel the scheduled upgrade.
Snoozing Alerts During Software Upgrades
To minimize unnecessary noise and ensure a smooth upgrade experience, we recommend using the Snooze Alerts feature available in the Orchestrator. This feature allows users to temporarily suppress alerts for a specific Site or Access Point (AP) during planned maintenance or upgrade activities.
In addition to reducing alert fatigue for users, it also signals to the Celona Support team (who proactively monitor the network) that the impacted entities are undergoing scheduled work.
Common use cases for snoozing alerts include:
Initiating a SAS registration request for a site
Upgrading an Edge Cluster
Upgrading one or more Access Points within a Site
Rebooting an Access Point for troubleshooting
Any other maintenance tasks expected to impact Site or AP availability
How to use:
Navigate to the Site Details or Access Point Details page.
Use the Snooze Alerts option to define a start and end time for the maintenance window.
During this period, alerts related to the selected site or AP will be suppressed.
This practice is strongly recommended as part of your standard software upgrade workflow.
Edge Upgrade
Note: When an Edge upgrades, you cannot upgrade the APs attached to that Edge. The checkboxes corresponding to those APs are greyed out.
Single-Node Upgrade
Select the EDGE you want to upgrade and schedule the upgrade. The Edge Release Version list shows all releases (not just the major versions).
AP Upgrade
Note: When you schedule an upgrade on one or more APs, the Edge and other APs belonging to that Edge cannot be selected for a new upgrade schedule until the previous batch of upgrades is completed.
Single AP Upgrade
Select the AP you want to upgrade and schedule the upgrade. The AP Release Version list shows all releases (not just the major versions).
Multiple APs Upgrade
You can schedule the upgrade of multiple APs through a single upgrade request.
Select all the APs you want to upgrade (they need not be on the same site or cluster).
Click the “Schedule Upgrade” button to open the “Schedule Upgrade” window.
Select the AP Release Version from the list, showing all releases (not just the major versions).
Edge + AP Upgrade
Celona provides flexibility for scheduling upgrades of multiple components, including Edges and Access Points (APs), in one go to update the site. Here’s how you can manage upgrades for both Edges and APs:
Note: If multiple components are selected to upgrade in one request, the release version list will only contain the major software release versions (e.g., 2402, 2406…, etc.).
Select the multiple Edges and APs to upgrade.
Click the “Schedule Upgrade” button.
Select the Edge Release Version and AP Release Version; the list only shows all the major software release versions.
Enter the date and time and select the necessary checkboxes. Then, click the “UPGRADE” button to upgrade the site.
Upgrade Status
The Upgrade Status column in the “Software Upgrades” page shows an upgrade's status in real-time. The table below explains all the status types displayed in the upgrade status column.
Upgrade Status | Detail | Action to Take |
Scheduled | Component is scheduled for an upgrade | NA |
Validating request | Upgrade initiated | NA |
Preparing upgrade services | Upgrade is in progress | NA |
Downloading requirements | Upgrade is in progress | NA |
Installing system packages | Upgrade is in progress | NA |
Rebooting node | Upgrade is in progress | NA |
Running post-upgrade checks | Upgrade completed. Running sanity checks | NA |
Successful | Upgrade completed | NA |
Unable to initiate upgrade | Could not start the upgrade | Please contact Celona Support (support@celona.io) |
Failed | Upgrade failed | Please contact Celona Support (support@celona.io) |
Snoozing Alerts During Software Upgrades
To minimize unnecessary noise and ensure a smooth upgrade experience, we recommend using the Snooze Alerts feature available in the Orchestrator. This feature allows users to temporarily suppress alerts for a specific Site or Access Point (AP) during planned maintenance or upgrade activities.
In addition to reducing alert fatigue for users, it also signals to the Celona Support team (who proactively monitor the network) that the impacted entities are undergoing scheduled work.
Common use cases for snoozing alerts include:
Initiating a SAS registration request for a site
Upgrading an Edge Cluster
Upgrading one or more Access Points within a Site
Rebooting an Access Point for troubleshooting
Any other maintenance tasks expected to impact Site or AP availability
How to use:
Navigate to the Site Details or Access Point Details page.
Use the Snooze Alerts option to define a start and end time for the maintenance window.
During this period, alerts related to the selected site or AP will be suppressed.
This practice is strongly recommended as part of your standard software upgrade workflow.
Tracking Upgrade Progress
The Software Upgrades page shows upgrade progress in real time. With rolling upgrades, you will notice the following:
Rows update individually as each component finishes, rather than all changing to Successful together at the end.
A Multiple badge can appear under Current Version during an upgrade. This means some components are already on the new version while others have not started yet. This is expected and is not an error.
Access Point upgrade status
Each AP row shows one of four statuses:
Status | Meaning | Action to take |
In Queue | The AP is part of an upgrade group and is waiting for its turn. | None |
Upgrade Started | The AP's upgrade is in progress. | None |
Successful | The AP is fully upgraded. | None |
Failed | The AP's upgrade failed at one of the stages below. The AP does not roll back automatically. | Retry the upgrade, or contact Celona Support (support@celona.io) |
Access Point Upgrade Stages
Click an individual AP to open the Access Point Upgrade Stages panel, which shows a stage-by-stage breakdown of that AP's upgrade.
Stage | Status shown on the row | What's happening |
Request received | In Queue | The AP has been added to an upgrade group and is waiting for its turn. |
Pre-validation started / completed | Upgrade Started | Checks that the AP is in a safe state to upgrade. |
Offloading user equipment / User equipment offloaded | Upgrade Started | Connected devices are moved off this AP before it goes down. |
Downloading upgrade metadata / Downloaded | Upgrade Started | The new software image is downloaded, either directly or from another AP in the same group. |
Upgrade started / Upgrade applied | Upgrade Started | The AP is installing and applying the new software. |
Post-validation started / completed | Upgrade Started | Confirms the AP came back up correctly on the new version. |
Successful | Successful | The AP is fully upgraded. |
Any stage can end in a failure instead (for example, a pre-validation, device offload, download, or post-validation failure). When that happens, the AP row changes to Failed, and the panel shows the exact stage where the upgrade stopped. Include this stage name when contacting Celona Support.
Edge Cluster Upgrade Stages
Click an Edge cluster to open the Edge Cluster Upgrade Stages panel. The Edge Cluster tab shows overall progress, and the Nodes tab shows the stage-by-stage progress of each node in the cluster, including a sequence progress bar.
Each node moves through these stages: Scheduled, Preparing upgrade, Downloading requirements, Upgrade started, Installing system packages, Installing system services, Upgrade applied, Running post-upgrade checks, Running post-upgrade hooks, and Successful.
If a node fails and rolls back automatically, the panel shows the rollback as its own set of stages, each prefixed with Rollback (for example, Rollback installing system packages and Rollback applied).
Troubleshooting
What you see | What it means |
One AP stays in In Queue longer than the others in its group | Expected. This AP is sharing the software image with its group and upgrades last. |
Multiple badge under Current Version | Expected during an upgrade. Some components are on the new version and others have not upgraded yet. |
Edge upgrade stopped partway through a multi-node cluster | A node failed. It rolls back automatically, and remaining nodes are not upgraded. Retry the upgrade after the issue is resolved; completed nodes are skipped. |
AP shows Failed | APs do not roll back automatically. Open the AP's Upgrade Stages panel to see where it stopped, then retry or contact Support. |
If an upgrade fails and retrying does not resolve it, contact Celona Support at support@celona.io.