Complex sentence: On 28 May 2011 WinGate 7 entered public Beta, then finally on 15 November 2011, the first official public releas of WinGate 7.0 (build 3332) was released.
Split into simpler sentences: On 28 May 2011 WinGate 7 entered public beta. Then, on 15 November 2011, the first official public releas of WinGate 7.0 (build 3332) was released.