2 July 2011
- 06:0206:02, 2 July 2011 diff hist −249 Portal 2 Chapter 1 Her Chamber Updated music templates
- 06:0106:01, 2 July 2011 diff hist −165 Portal 2 Chapter 1 Test Chamber 6 Updated music templates
- 06:0006:00, 2 July 2011 diff hist −129 Portal 2 Chapter 1 Test Chamber 5 Updated music templates
- 05:5905:59, 2 July 2011 diff hist −135 Portal 2 Chapter 1 Test Chamber 2 Updated music templates
- 05:5805:58, 2 July 2011 diff hist −117 Portal 2 Chapter 1 Test Chamber 1 Updated music templates
- 05:5605:56, 2 July 2011 diff hist −292 Portal 2 Chapter 1 Introduction Updated music templates
- 05:5305:53, 2 July 2011 diff hist +40 Portal 2 Chapter 4 Test Chamber 21 (Escape) Added music
15 June 2011
- 06:5506:55, 15 June 2011 diff hist +223 Portal 2 Chapter 5 GLaDOS' Lair Added related achievements and music
- 06:3906:39, 15 June 2011 diff hist +139 Portal 2 Chapter 5 Turret Control Center Added related achievements
11 June 2011
- 22:4722:47, 11 June 2011 diff hist −81 Atlas Minor cleanup
10 June 2011
- 03:1503:15, 10 June 2011 diff hist +41 Wheatley Minor cleanup
5 June 2011
- 23:5123:51, 5 June 2011 diff hist +138 Portal 2 Chapter 1 Her Chamber →Music
- 21:2521:25, 5 June 2011 diff hist +131 Portal 2 Chapter 4 Test Chamber 21 (Escape) Added related achievements
- 21:1821:18, 5 June 2011 diff hist +213 Portal 2 Chapter 4 Test Chamber 20 Added related music for this chamber
- 21:1621:16, 5 June 2011 diff hist +265 Portal 2 Chapter 4 Test Chamber 19 Added related music for this chamber
- 21:1321:13, 5 June 2011 diff hist +205 Portal 2 Chapter 4 Test Chamber 18 Surprise! Added related music!
- 21:0621:06, 5 June 2011 diff hist +204 Portal 2 Chapter 3 Test Chamber 17 Added related music for Rattman's Den
- 20:5920:59, 5 June 2011 diff hist +221 Portal 2 Chapter 3 Test Chamber 16 Added related music for this chamber
- 20:5820:58, 5 June 2011 diff hist +193 Portal 2 Chapter 3 Test Chamber 14 Added related music for this chamber
- 20:4920:49, 5 June 2011 diff hist +197 Portal 2 Chapter 3 Test Chamber 13 Added related music for this chamber