< Beta Firmware | Mac
Note: "DP" refers to "Developer Preview" while "PB" refers to "Public Beta"
| Version | Build | Release Date | Download URL | File Size |
|---|---|---|---|---|
| 10.10 DP | 14A238x | 2 June 2014 | ? | ? |
| 10.10 DP 2 | 14A261i | 17 June 2014 | ? | ? |
| 10.10 DP 3 | 14A283o | 7 July 2014 | ? | ? |
| 10.10 DP 4 | 14A298i | 21 July 2014 | ? | ? |
| 10.10 PB | 14A299I | 24 July 2014 | ? | ? |
| 10.10 DP 5 | 14A314a | 4 August 2014 | ? | ? |
| 10.10 DP 6 | 14A3429f | 18 August 2014 | ? | ? |
| 10.10 PB 2 | 14A329r | 21 August 2014 | ? | ? |
| 10.10 DP 7 | 14A343f | 15 September 2014 | ? | ? |
| 10.10 DP 8 | 14A361c | 15 September 2014 | ? | ? |
| 10.10 PB 3 | 14A361p | ? | ? | |
| 10.10 GM | 14A379a | 30 September 2014 | ? | ? |
| 10.10 PB 4 | 14A379b | ? | ? | |
| 10.10.1 beta | 14B17 | 3 November 2014 | ? | ? |
| 10.10.1 beta 2 | 14B23 | 10 November 2014 | ? | ? |
| 10.10.2 beta | 14C68K | 20 November 2014 | ? | ? |
| 10.10.2 beta 2 | 14C78c | 4 December 2014 | ? | ? |
| 10.10.2 beta 3 | 14C81f | 12 December 2014 | ? | ? |
| 10.10.2 beta 4 | 14C94b | 7 January 2015 | ? | ? |
| 10.10.2 beta 5 | 14C99d | 14 January 2015 | ? | ? |
| 10.10.2 beta 6 | 14C106a | 21 January 2015 | ? | ? |
| 10.10.3 beta | 14D72i | 5 February 2015 | ? | ? |
| 10.10.3 beta 2 | 14D87h | 23 February 2015 | ? | ? |
| 10.10.3 beta 3 | 14D98g | 12 March 2015 | ? | ? |
| 10.10.3 beta 4 | 14D105g | 16 March 2015 | ? | ? |
| 10.10.3 beta 5 | 14D113c | 23 March 2015 | ? | ? |
| 10.10.3 beta 6 | 14D127a | 30 March 2015 | ? | ? |
| 10.10.3 beta 7 | 14D130a | 2 April 2015 | ? | ? |
| 10.10.4 beta | 14E7f | 16 April 2015 | ? | ? |
| 10.10.4 beta 2 | 14E11f | 27 April 2015 | ? | ? |
| 10.10.4 beta 3 | 14E17e | 11 May 2015 | ? | ? |
| 10.10.4 beta 4 | 14E26a | 26 May 2015 | ? | ? |
| 10.10.4 beta 5 | 14E33b | 9 June 2015 | ? | ? |
| 10.10.4 beta 6 | 14E36b | 15 June 2015 | ? | ? |
| 10.10.5 beta | 14F6a | 14 July 2015 | ? | ? |
| 10.10.5 beta 2 | 14F19a | 30 July 2015 | ? | ? |