The phrase "a newer program which" is correct and usable in written English.
You can use it when referring to a program that has been updated or improved compared to an earlier version.
Example: "The company has launched a newer program which offers enhanced features and better user experience."
Alternatives: "an updated program that" or "a more recent program which".
The Department of Justice is trialling a new program, which resembles The Counted, to proactively collect data on killings by police.
Chicago law professor Lawrence Lessig issued a revolutionary manifesto for a new program which would study the ways that law can influence behavior indirectly, by changing social norms.
Only two people are being certified this year, but Pace is working on a new program, which it plans to introduce in January, to fast-track native Chinese speakers for certification.
Also in September, the company rolled out a new program which would allow trusted moderators to help vet the comments on its site, by flagging inappropriate comments and performing other tasks to earn points and gain early access to new features.
In 1987, the last of the silver trams (361) was refurbished under a new program which introduced a few more modern features to the cars.
And Ford keeps rolling along, introducing a new program which has put their crucially-important 2011 Fiesta in the hands of a few dozen 20-something's for free for six months.
In Florida, Governor Rick Scott signed into law a new program which requires all state colleges and universities to publicly report their efforts to cut tuition and ancillary education costs, like textbooks and online degree offerings.
We here introduce a new program which facilitates the processing and analysis of multiple alignment files.
A new program, which uses second-generation adenovirus vaccines approved in 2011, is expected to again lower the number of illnesses and deaths caused by adenovirus.
