Vendor EOL guides
Find any product's end-of-life date
Every vendor announces end-of-life differently: different terms, different timelines, different lookup tools. These guides explain each vendor's lifecycle policy in plain English and point you to the official source for exact dates.
Cisco
EoS, EoNSA, LDoS: Cisco's five milestones explained, the 5-year hardware support rule, and where to look up any product or serial number.
Read the Cisco guide →Cisco, in more depth
Two focused guides for the questions people actually ask about Cisco lifecycle dates.
Fortinet
EOO, LSED, EOS: how FortiGate hardware and FortiOS firmware lifecycles work, and where Fortinet publishes the official dates.
Read the Fortinet guide →Dell
Why there's no published PowerEdge EOSL list, the 5-7 year support reality, and the Service Tag lookup that gives you your exact date.
Read the Dell guide →HPE
The generation-based ProLiant lifecycle, the minimum-5-years-after-end-of-sale rule, and the firmware gotcha to watch.
Read the HPE guide →Juniper
The five-milestone lifecycle, EOL Notification, the ~180-day Last Order Date, End of Engineering and End of Support, and where to find official dates.
Read the Juniper guide →Synology
The three DSM support phases, how long a NAS really gets security updates, and why the software clock matters more than the hardware.
Read the Synology guide →Ubiquiti
The LTS-then-EOL stages, why UniFi gear has no committed lifecycle length, and what “visible but not configurable” means for your controller.
Read the Ubiquiti guide →Aruba (HPE)
End of Sale, End of New Features and End of Service Life. The HPE Aruba lifecycle and the ~5-year support window after end-of-sale.
Read the Aruba guide →Cisco Meraki
End-of-Sale, End-of-Support ~5 years later, the firmware policy, and the cloud-licence catch that makes Meraki EOL a hard stop.
Read the Meraki guide →SonicWall
The five-stage retirement clock, LDO, ARM (2y), LRM (3y), EOS, EOL, and why the EOL date is a firewall security deadline.
Read the SonicWall guide →NETGEAR
The End of Service date, the ProSAFE warranty trap, and why a “lifetime warranty” doesn't mean lifetime secure.
Read the NETGEAR guide →RUCKUS
The End of Sale, End of Software Maintenance and End of Support stages, the 5-year support rule, and the ICX and access point dates CommScope publishes openly.
Read the RUCKUS guide →More vendors…
New vendor guides are added based on demand. Need a specific one? Tell us which.
New to the terminology?
EOL, EOS, EOSL and friends, what each “end of” date actually means.
Read the glossary →IT end-of-support calendar 2026-2028
Every major upcoming deadline in one continuously updated page, including the Windows Server 2012 ESU cliff on October 13, 2026.
See what's ending next →Looked a date up? Now never look it up again.
Add the device to EOL Tracking and get warned months before the date arrives, automatically.
Start free, up to 5 assets