The RAND function returns numbers from the interval [0,1), and if you need to generate numbers from another interval, you should use the following formula: =RAND() * (bâa) + a. This will return random numbers from the interval [a,b) - greater than or equal to a, and less than b.
At the time, 5.4 was made available as a beta release alongside the stable 5.3.4 release. Now that 5.4 has become the latest stable Unity release, it seems the company intends to keep the program going a beta version of Unity 5.5 is slated to debut in the near future. source.
Mozilla and Unity hope to bring Unity-based games to the browser without the need for plugins by optimizing the Web Graphics Library (WebGL). On Thursday, Unity officially deprecated its Web Player plugin and said Unity 5.4 will ship in March 2016 without Web Player support.