- To add or substitute new parts or components to some device, structure etc., that were not previously available; to modernize
- 2020 January 2, Richard Clinnick, “Midlands Metro welcomes new catenary-free trams”, in Rail, page 16:
- Trams dating from 2012 have been retro-fitted with lithium batteries, with the conversions starting in 2018.
- To fix an older version (or older versions) as part of the same process of fixing the newest version; to backport
- The bug was so bad that we had to retrofit our patch to the last three releases, as well as the newest release.
To add or substitute new parts to some device that were not previously available
To fix an older version
retrofit (plural retrofits)
- Something that has been retrofitted
- The act of retrofitting
something that has been retrofitted
act of retrofitting
retrofit (not comparable)
- of, relating to, or being a retrofit
retrofit m (invariable)