VMware ESX Versions

VMware ESXi

VMware ESXi 5.5 GA (Build 1331820) (22 September 2013)

VMware ESXi 5.1 Update 1 (Build 1065491) (25 April 2013)
VMware ESXi 5.1 GA (Build 799733) (10 September 2012)

VMware ESXi 5.0 Update 3 (Build 1311175) (17 October 2013)
VMware ESXi 5.0 Update 2 (Build 914586) (20 December 2012)
VMware ESXi 5.0 Update 1 (Build 623860) (15 March 2012)
VMware ESXi 5.0 GA (Build 469512) (24 August 2011)

VMware ESXi 4.1 Update 3 (Build 800380) (30 August 2012)
VMware ESXi 4.1 Update 2 (Build 502767) (27 October 2011)
VMware ESXi 4.1 Update 1 (Build 348481) (10 February 2011)
VMware ESXi 4.1 GA (Build 260247) (13 July 2010)

VMware ESXi 4.0 Update 4 (Build 504850) (17 November 2011)
VMware ESXi 4.0 Update 3 (Build 398348) (5 May 2011)
VMware ESXi 4.0 Update 2 (Build 261974) (10 June 2010)
VMware ESXi 4.0 Update 1 (Build 208167) (9 December 2009)
VMware ESXi 4.0 GA (Build 164009) (21 May 2009)

VMware ESX

VMware ESX 4.1 Update 3 (Build 800380) (30 August 2012)
VMware ESX 4.1 Update 2 (Build 502767) (27 October 2011)
VMware ESX 4.1 Update 1 (Build 348481) (10 February 2011)
VMware ESX 4.1 GA (Build 260247) (13 July 2010)

VMware ESX 4.0 Update 4 (Build 504850) (17 November 2011)
VMware ESX 4.0 Update 3 (Build 398348) (5 May 2011)
VMware ESX 4.0 Update 2 (Build 261974) (10 June 2010)
VMware ESX 4.0 Update 1 (Build 208167) (19 November 2009)
VMware ESX 4.0 GA (Build 164009) (21 May 2009)

Data Source: VMware ESX - Wikipedia - http://en.wikipedia.org/wiki/VMware_ESX