pre-release

Translations
предрелизный
предварительный выпуск
предрелизная версия
версия до официального релиза
до официального выпуска
Definitions
Occurring or becoming available before the official release of a product, work, or event.
A version or copy made available before the official release, especially of software, music, or a film.
An event, screening, or showing held before the official public release.
Words
pre
до
release

noun
выпуск