In short: Progress acquired Kemp Technologies and the product is now sold as Progress Kemp LoadMaster; the appliances and the LoadMaster OS are the same lineage, while the portal, licensing and support paths changed. Kemp's published policy gives five years of support after a product's End of Sale date, which makes most hardware predictable to plan against. The two items that are not predictable are licensing: Metered Enterprise Licensing reached End of Life on 30 November 2025, and LoadMaster for Bare Metal went End of Sale on 3 January 2025.
- You run a LoadMaster and are not sure where it sits in the lifecycle
- Your licence is up for renewal, or you were on MELA and had to move
- You inherited an estate with a LoadMaster nobody documented
- You are weighing whether to stay on LoadMaster or move to F5, HAProxy, NGINX or a cloud load balancer
Load balancers are the classic forgotten appliance: they work quietly for years, so nobody checks them, and the first anyone looks is when a certificate expires, a failover does not fail over, or a licence lapses and traffic stops. All three are avoidable and none of them announces itself in advance.
Progress Kemp lifecycle dates by model
| Model | Last order day | End of Support | Status |
|---|---|---|---|
| MELA (Metered Enterprise Licensing)Vendor-published End of Life, and an explicit exception to the five-year policy. Already passed: if you were licensed this way you have had to move. | 3 January 2025 | 30 November 2025 | Out of support |
| LoadMaster for Bare MetalEnd of Life derived from the five-year policy. LoadMaster OS on your own x86 hardware can no longer be bought; existing deployments remain supported. | 3 January 2025 | 3 January 2030 | Supported |
| VLM-500, VLM-3000 (virtual)End of Life derived. Replaced by VLM-1G and VLM-5G. | 31 January 2025 | 31 January 2030 | Supported |
| LM-X3End of Life derived from the five-year policy. | 1 February 2024 | 1 February 2029 | Supported |
| LM-X40End of Life derived from the five-year policy. | 1 July 2023 | 1 July 2028 | Supported |
| LM-8020End of Life derived. Past the five-year window. | 1 February 2020 | 1 February 2025 | Out of support |
| LM-2400End of Life derived. Long past support. | 1 April 2016 | 1 April 2021 | Out of support |
Kemp lists 47 hardware models with End of Sale dates going back to 2007. Only the entries below were verified against the vendor directly, so this is a starting point rather than the full list: check your own model against Kemp's policy page. End of Life dates marked as derived come from Kemp's published five-year-after-End-of-Sale support policy rather than from a per-model published date.
- End of Sale
- The last date the product could be ordered. Kemp then provides a standard five-year support period covering bug fixes, maintenance releases, workarounds and patches for critical bugs, plus hardware spares and replacement units through the RMA process.
- End of Life
- The end of that support period. After it there are no further fixes, no maintenance releases and no hardware replacement. Kemp's standard policy places this five years after End of Sale, though MELA licensing was an explicit exception.
What actually changed when Progress acquired Kemp
Less than people fear, and more than nothing. The product line is the same: LoadMaster appliances, virtual LoadMaster, and the LoadMaster OS. What changed is everything around it, which is why the searches for this are mostly people trying to find something that moved.
Licensing and support now run through Progress systems rather than Kemp's own, which is the practical difference most administrators meet first: the portal you used to log into is not the portal any more, and the support path is Progress's. The branding on documentation and datasheets follows the same pattern.
For a working LoadMaster none of that requires action. It matters at exactly two moments: when you need support, and when you need to renew or move a licence. Both are much easier if somebody established where your account now lives before the day you need it.
MELA reached end of life in November 2025
This is the item on this page with a date that has already passed, and it is a licensing change rather than a hardware one.
Metered Enterprise Licensing, the pooled model where capacity was drawn from a shared entitlement across multiple LoadMaster instances, went End of Sale on 3 January 2025 and End of Life on 30 November 2025. That is a deliberate exception to Kemp's usual five-year policy, so anyone who was licensed that way has already had to move to a different model.
If that describes you and the move was made in a hurry, it is worth checking what you actually landed on. Pooled licensing exists because instance-by-instance licensing is awkward when you run several, and a rushed migration off it tends to produce either more licence than you need or a set of instances licensed inconsistently.
LoadMaster for Bare Metal is no longer sold
LoadMaster for Bare Metal was the option to run the LoadMaster OS on your own x86 server rather than on a Kemp appliance or as a virtual machine. It went End of Sale on 3 January 2025.
Existing deployments stay supported to their End of Life date under the standard five-year policy, so this is a planning item rather than an emergency. What it does close off is growth: if you standardised on bare metal and expected to add more, that route is gone and the choice is now appliance, virtual or cloud.
Worth knowing alongside it: the VLM-500 and VLM-3000 virtual models also went End of Sale in January 2025, replaced by the VLM-1G and VLM-5G.
The five-year rule, and how to use it
Kemp publishes a standard support policy of five years from a product's End of Sale date. In that window you get bug fixes, maintenance releases, workarounds and patches for critical bugs, plus hardware spares and replacement units through the RMA process.
That makes the arithmetic straightforward once you know your model's End of Sale date: add five years and you have the date support stops. An LM-X40, End of Sale July 2023, is supported to roughly July 2028. An LM-X3, End of Sale February 2024, to roughly February 2029.
The table above gives the models we could verify directly. Kemp lists 47, going back to 2007, so check yours against their policy page rather than assuming absence from our table means anything. If your model is older than the ones listed, it is very likely already past support.
What a LoadMaster actually needs looking after
Four things, and they are the four that get missed because the appliance keeps working while they rot.
Certificates. A LoadMaster usually terminates TLS, which means it holds certificates that expire. An expired certificate on the load balancer takes the application down as effectively as an outage, and it is entirely predictable.
Firmware. Updates carry security fixes, and a load balancer sits at the perimeter of an application, so it is exposed by design. Progress publishes security advisories against LoadMaster; if nobody is reading them, nobody is patching against them.
High availability that has actually been tested. HA pairs fail over cleanly in theory and, in our experience, surprisingly often do not in practice, usually because a configuration change was made on one unit and never replicated. A failover you have not tested is a belief, not a control.
The licence. It expires, and when it does the consequences are immediate rather than gradual.
Staying on LoadMaster or moving to something else
The alternatives that come up are F5, HAProxy, NGINX and NetScaler, plus the native load balancers in Azure and AWS. We are a Progress Kemp partner, so weigh what follows accordingly, but the honest version is that the decision is rarely about the load balancer.
LoadMaster's position has always been capability that is close enough to F5 for most mid-market workloads at a considerably lower price, with a much shorter learning curve. If your requirement genuinely needs F5's depth, you will know, because something specific will be driving it.
HAProxy and NGINX are excellent and free at the point of use, and the cost lands somewhere else: in the engineering time to build, secure, monitor and maintain them, and in the person who understands the configuration becoming a dependency. That is a good trade for organisations with the platform skills, and a poor one for organisations without.
The move worth considering seriously is not to another appliance but away from the pattern: if the applications behind the LoadMaster are moving to Azure, a native load balancer or Application Gateway may cover it and remove a box entirely. That is a genuine option and it is the one an appliance vendor's partner is least likely to raise, which is precisely why it is here.
What we do with Progress Kemp
- Establish where your LoadMasters sit: model, firmware, licence, and lifecycle position
- Sort out licensing, including moves off MELA and consolidating inconsistent instances
- Manage the estate ongoing: firmware, certificates, configuration backup and change control
- Test the failover rather than assuming it, and fix the HA pairs that do not
- Design and migrate: appliance to virtual, virtual to cloud, or off the platform entirely
Related
Frequently asked
Is Kemp still Kemp, or is it Progress now?
Both, in the sense that matters. Progress acquired Kemp Technologies and the product is sold as Progress Kemp LoadMaster; the appliances, the virtual LoadMaster and the LoadMaster OS are the same lineage they always were. What moved is the surrounding infrastructure: licensing and support run through Progress systems, and documentation carries Progress branding. For a working LoadMaster this requires no action. It matters at the two moments when you need support and when you need to renew or move a licence, both of which go more smoothly if somebody has already worked out where your account now lives.
What happened to MELA licensing?
Metered Enterprise Licensing reached End of Sale on 3 January 2025 and End of Life on 30 November 2025, which was an explicit exception to Kemp's usual five-year support policy. Anyone licensed that way has already had to move to another model. If that was you and it was done at short notice, it is worth reviewing what you ended up on: pooled licensing exists precisely because per-instance licensing is awkward across several LoadMasters, and rushed migrations off it tend to leave either more licence than the estate needs or instances licensed inconsistently.
When does my Kemp LoadMaster go out of support?
Five years after its End of Sale date, under Kemp's published policy. Within that window you get bug fixes, maintenance releases, workarounds and patches for critical bugs, plus hardware spares and replacement units through the RMA process. So an LM-X40 with an End of Sale of July 2023 is supported to roughly July 2028. Kemp lists 47 hardware models with End of Sale dates going back to 2007, so look yours up on their policy page: the table on this page covers only the models we verified directly, and absence from it does not mean a model is unaffected.
Can I still buy LoadMaster for Bare Metal?
No. LoadMaster for Bare Metal, the option to run the LoadMaster OS on your own x86 server, went End of Sale on 3 January 2025. Existing deployments remain supported to their End of Life date under the five-year policy, so nothing needs to happen immediately. What it closes off is growth: if you standardised on bare metal and expected to add more instances, that route has gone and the remaining choices are appliance, virtual or cloud.
How does Kemp LoadMaster compare with F5, HAProxy or NGINX?
We are a Progress Kemp partner, so weigh this accordingly. LoadMaster's position has always been capability close enough to F5 for most mid-market workloads at a considerably lower price and with a much shorter learning curve; if your requirement genuinely needs F5's depth, something specific will be driving that and you will know what it is. HAProxy and NGINX are excellent and free to license, with the cost landing in engineering time to build, secure and maintain them and in the person who understands the configuration becoming a dependency. That is a good trade with platform skills in-house and a poor one without.
Should we replace the LoadMaster with an Azure load balancer?
It is worth asking, and it is the option a load-balancer vendor's partner is least likely to raise. If the applications behind the LoadMaster are moving into Azure, Azure Load Balancer or Application Gateway may cover the requirement and remove an appliance from the estate entirely. Where that tends not to work is when the LoadMaster is doing more than load balancing, for example ESP pre-authentication, WAF or complex content rules, or when significant workloads remain on-premises and you would end up running both. Establish what it is actually doing before assuming either way.
What is the most common problem you find on a LoadMaster?
Untested failover, closely followed by expiring certificates. An HA pair that has never been failed over is a belief rather than a control, and the usual cause of a failed failover is a configuration change made on one unit and never replicated to the other. Certificates are the more frequent outage: a LoadMaster typically terminates TLS, so an expired certificate on it takes the application down exactly as an outage would, and it is entirely predictable in advance. Both are cheap to prevent and disproportionately expensive to meet unprepared.
Other vendors we support
- SonicWall firewall support, and what End of Support means for your model
- WatchGuard Firebox support and lifecycle: when you actually need to move
- Altaro is now Hornetsecurity: VM Backup and 365 Total Backup
- Nakivo Backup & Replication: what it covers and how it is licensed
- Do you still need Mimecast if you have Microsoft Defender for Office 365?
- Exclaimer or native Microsoft 365 signatures: which one you actually need
Not sure where you stand with Progress Kemp?
Tell us what you are running and we will tell you plainly whether it needs action, including when the answer is that it does not.
