Visit the pages below for information about upgrading to later versions of Unity.
Upgrading to Unity 2019.1 [Public alpha 31 October 2018]
Upgrading to Unity 2018.3 [Release expected December 2018] - [Public beta 13 September 2018]
Upgrading to Unity 2018.2 [Released 10 July 2018] - [Public beta 07 May 2018]
Upgrading to Unity 2018.1 [Released 02 May 2018] - [Public beta 10 January 2018]
Upgrading to Unity 2017.3 [Released 19 December 2017] - [Public beta 25 September 2017]
Upgrading to Unity 2017.2 [Released 12 October 2017] - [Public beta 14 July 2017]
Upgrading to Unity 2017.1 [Released 12 July 2017] - [Public beta 11 April 2017]
Upgrading to Unity 5.6 [Released 31 March 2017] - [Public beta 12 December 2016]
Upgrading to Unity 5.5 [Released 30 November 2016] - [Public beta 29 August 2016]
Upgrading to Unity 5.4 [Released 28 July 2016] - [Public beta 14 March 2016]
Upgrading to Unity 5.3 [Released 08 December 2015]
Upgrading to Unity 5.2 [Released 08 September 2015]
Upgrading to Unity 5.0 [Released 03 March 2015]
Upgrading to Unity 4.0 [Released 13 November 2012]
Upgrading to Unity 3.5 [Released 14 February 2012]