prerelease

/P R IH0 R IY0 L IY1 S/
noun
  1. 1

    A preliminary version of a work, released in advance.

  2. 2

    An inadvertent (premature) release of a skiboot from the bindings of a ski, caused by excessive vibration, such as going over an extremely bumpy piste.

verb
  1. 1

    To release in advance

adjective
  1. 1

    Before release.

Source: https://en.wiktionary.org/wiki/prerelease