Answer:
Alpha release
Explanation:
Pre-alpha refers to all activities performed during the software project before formal testing.
The alpha phase of the release life cycle is the first phase of software testing.
A feature complete version of a piece of software has all of its planned or primary features implemented but is not yet final due to bugs, performance or stability issues.
A Beta phase generally begins when the software is feature complete but likely to contain a number of known or unknown bugs.
