Word describing an outdated and no longer updated software package
Unsupported
Is the term usually applied to this type of software. Unsupported in the software world, usually means 'end of life', and 'no more updates'.
End of life and unsupported are synonymous in this context.
For example, from:
Microsoft
What does it mean if Windows isn't supported? An unsupported version of Windows will no longer receive software updates from Windows Update. These updates include security updates that can help protect your PC from harmful viruses, spyware, and other malicious software which can steal your personal information. Windows Update also installs the latest software updates to improve the reliability of Windows—such as new drivers for your hardware.
Will I still be able to use Windows after support ends?
Yes, even if you have an unsupported version of Windows XP or Windows Vista, Windows will continue to start and run. You just won't be able to receive software updates from Windows Update any longer.
Berkley Information Security Policy
Security best practices...require the use of supported software for which the vendor will make security updates available in a timely fashion. As vendors are unable to support all previous versions of software, older programs are dropped from support and must be upgraded or removed from the network.
Australian Government (stay smart online)
Stop using unsupported software and apply new security updates
You should retire all vendor products that have reached end of life, meaning they are no longer supported. These products typically do not receive any patches that protect against newer viruses, spyware or other malicious software and may not be subject to technical support.
legacy software
And I am most definitely not a programmer.
For example: legacy software
What is legacy software?
Legacy software is software that has been around a long time and still fulfills a business need. It is mission critical and tied to a particular version of an operating system or hardware model (vendor lock-in) that has gone end-of-life. Generally the lifespan of the hardware is shorter than that of the software. As time goes on, the hardware gets harder to maintain but is kept because it is installed and (for now) working and has proven too complex and/or expensive to replace.
Deprecate
- Computers To mark (a component of a software standard) as obsolete to warn against its use in the future so that it may be phased out.
[Source: The Free Dictionary]