The Size, Min and Max constraints were deprecated and will be removed in Symfony 2.3.

[pawaclawczyk]

• The Size, Min and Max constraints were deprecated and will be removed in
  Symfony 2.3. You should use the new constraint Range instead.

  Before:

  /** @Assert\Size(min = 2, max = 16) */
  private $numberOfCpus;
  

  After:

  /** @Assert\Range(min = 2, max = 16) */
  private $numberOfCpus;
  

  Before:

  /** @Assert\Min(2) */
  private $numberOfCpus;
  

  After:

  /** @Assert\Range(min = 2) */
  private $numberOfCpus;