Definition of Release date:
Date when a product, press release or news story will be released to the public. The release date is announced in advance to provide consumers and other interested parties specific details regarding the release. This may include the date, day, hour or even minute of the upcoming release.
The date on which something is released; (now especially) a date fixed in advance for the release of a film, recording, or similar product.
Meaning of Release date & Release date Definition