Patches are updates to the game that fix known bugs, glitches, or exploits within the game, and often add new features or balance changes to items, levels, or other game elements.
Although each patch is usually paired with notes detailing what has been altered, some alterations are not mentioned. These undocumented changes rely on the community to notice their existance and therefore report them to others. As such, the exact date of undocumented change implementation will be an estimate.
Patches are listed in reverse-chronological order, with newest patches first.
Full list of Bridge Constructor Portal patches
2018
Full list of The Lab patches
2016
Full list of Portal 2 patches
2019
2018
2017
2015
2014
2013
2012
- November 26
- November 21
- November 20
- September 18
- August 29
- August 18
- August 16
- June 04
- May 21
- May 10
- May 09
- May 08