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| Published | Title | Build |
|---|---|---|
| Portal 2 - Update An update has been released for Portal 2. - Fixed failing to launch on Linux. | 23973718 | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed subtitles not playing during end credits. - Fixed not returning to the main menu when credits finish. - Security and exploit fixes reported via HackerOne. | — | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed a compatibility issue that was causing a crash on Linux clients. | 17256505 | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed exploits used to crash remote players. | 17069914 | |
| Portal 2 - Update An update has been released for Portal 2: - Fixed a remote code execution exploit and out-of-memory exploit in cooperative mode. | 14822445 | |
| Portal 2 - Update An update has been released for Portal 2: - Fixed some exploits that could lead to crashes or remote code execution against a co-op partner. Reported via HackerOne. | 14588596 | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed the ping tool not working in co-op. | 13373316 | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed not being able to play local splitscreen. | 13352218 | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed several exploits that could crash a coop partner's game. All reported via HackerOne. | 13340647 | |
| Portal 2 - Update - Fixed several remote code execution and crash exploits against co-op partners. All reported via HackerOne. - Fixed a regression in targeting some entities with the ping tool. | 13094519 | |
| Portal 2 - Update An update has been released for Portal 2 and Portal 2 Authoring Tools. - Fixed several crash and remote code execution exploits, reported via HackerOne. | 11097438 | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed two remote player crash exploits. - Fixed a crash on launch that some uses were experiencing. | 10856166 | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed several remote code execution and crash exploits against co-op partners. All reported via HackerOne. | 10722505 | |
| Portal 2 Update An update has been released for Portal 2 - Minor code maintenance, no customer-facing changes. | 10293430 | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed LED color on supported controllers sometimes not being set correctly. | 10100389 | |
| Portal 2 - Update An update has been released for Portal 2. - Updated to DXVK version 2.0 - Fixed some controller input bugs | 9970084 | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed a visual bug in menus when playing with an external controller. | 9166234 | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed the default input configuration for the Steam Deck. - Updated localization. | 8539533 | |
| Portal 2 - Update An update has been released for Portal 2. - Updated controller support - Fixed a crash in controller vibration - Fixed a crash in a sound mixer - Fixed a stale material pointer crash | 8201171 | |
| Portal 2 - Update An update has been released for Portal 2. - Fixed a scaling issue with some UI elements | 8126180 | |
| Portal 2 - Update An update has been released for Portal 2 game and Authoring Tools. - UI improvements for Steam Deck support - Improved performance of controller polling - Other general in-game performance improvements - Fixed a misaligned stack pointer crash in Miles audio - Fixed input action set selection when switching between game and Puzzle Maker - Fixed some Squirrel engine exploits, reported via HackerO… | 8114571 | |
| Portal 2 - Update An update has been released for Portal 2 - Fixed the game failing to launch on OSX. - Fixed some controller glyphs | 6801075 | |
| Portal 2 Update An update has been released for Portal 2 - Fixed a recent physics bug that caused some turrets to fall over on map start. | 6727528 | |
| Portal 2 Update An update has been released for Portal 2 game and Authoring Tools - Fixed custom maps with no lights disabling lighting for the rest of the play session - Fixed Model Viewer and Face Poser not opening - Fixed demo playback for workshop maps - Fixed some text corruption related to UTF-8 conversion in some instances on Linux - Moved the 32-bit Linux binaries into linux32 - Misc. rendering and oth… | — | |
| Portal 2 - Update An update has been released for Portal 2 game and authoring tools: Bug Fixes: - Fixed a bug with broken voice overs in languages that have voice localizations (Russian, French, Spanish and German) - Fixed the audio settings being unusable in languages other than English - Compiled cubemaps on a3_crazy_box - Fixed a bug with broken text on the PeTI map selection - Potentially fixed motion pack D… | 6318595 |
| Date | Day | Time | Patch title | Build ID | Branch | Depots | Download Δ |
|---|---|---|---|---|---|---|---|
| 29 Jun 2026 | Mon | 22:25 | Portal 2 - Update | 23973718 | public | — | — |
| 29 Jun 2026 | Mon | 22:20 | Portal 2 - Update | 23973718 | beta | — | — |
| 17 May 2021 | Mon | 22:51 | Portal 2 - Update | 6318595 | previous_release | — | — |
| 15 Mar 2021 | Mon | 18:29 | No patch notes · unannounced build | 5270661 | demo_viewer | — | — |