Cambridge CodexCommunityWorkshop guide

The pace of updates.

Lots has changed. You only need the parts that help with your own work.

122dated changelog entries

May 2025 to 8 October 2026.
Each dot is one entry. Each column is one month.

DevDay Exchange artwork
122 entries shown

One dot represents one published changelog entry, which may include several improvements. October is a partial month. See the official updates ↗

Useful without writing code.

Official Show a screen product illustration

Show a screen

Appshots: ask about the page in front of you.

Official Share a page product illustration

Share a page

Sites: make a useful checklist or event guide.

Official Talk an idea through product illustration

Talk an idea through

Voice: explain, answer a question, then change direction.

Official Create together product illustration

Create together

Pages and Space: make and improve shared work.

Selected milestones. Product availability varies by account, plan and workspace.

Read every indexed entry
  1. Codex in the ChatGPT iOS app
  2. Reworked environment page
  3. June update
  4. Best of N
  5. Mid August update
  6. Late August update
  7. Introducing GPT-5-Codex
  8. GPT-5-Codex in the API
  9. Codex is now GA
  10. Tag @Codex on GitHub Issues and PRs
  11. Credits on ChatGPT Pro and Plus
  12. GPT-5-Codex model update
  13. Introducing GPT-5-Codex-Mini
  14. Introducing GPT-5.1-Codex and GPT-5.1-Codex-Mini
  15. Introducing GPT-5.1-Codex-Max
  16. Usage and credits fixes
  17. Introducing Codex for Linear
  18. Introducing GPT-5.2-Codex
  19. Agent skills in Codex
  20. GPT-5.2-Codex API availability
  21. Custom prompts deprecated
  22. Team Config for shared configuration
  23. Web search is now enabled by default
  24. Introducing the Codex app
  25. Codex app 26.203
  26. Codex app 26.204
  27. Introducing GPT-5.3-Codex
  28. Codex app 26.205
  29. Codex app 26.206
  30. Codex app 26.208
  31. GPT-5.3-Codex in Cursor and VS Code
  32. Codex app 26.210
  33. Introducing GPT-5.3-Codex-Spark
  34. Codex app 26.212
  35. Codex app 26.217
  36. Codex app 26.226
  37. Codex app 26.227
  38. Codex app 26.228
  39. Codex app 26.303
  40. Codex app 26.304
  41. Introducing GPT-5.4 in Codex
  42. Codex app 26.305
  43. Codex app 26.311
  44. Codex app 26.312
  45. Codex app 26.313
  46. Introducing GPT-5.4 mini in Codex
  47. Codex app 26.317
  48. Codex app 26.318, 26.319
  49. Codex app 26.320
  50. Codex app 26.323
  51. Build and install plugins in Codex
  52. Codex app 26.324
  53. Codex app 26.325, 26.331, 26.401
  54. Codex model availability update
  55. Codex app 26.406
  56. Codex app 26.409
  57. Codex app 26.410
  58. Codex can now help with more of your work 26.415
  59. Codex app 26.417
  60. GPT-5.5 and Codex app updates
  61. Codex app 26.423
  62. Create Codex access tokens
  63. Codex app 26.429
  64. Codex analytics governance docs update
  65. Codex for Chrome
  66. Codex app 26.506
  67. Expanded Auto-review documentation
  68. Work with Codex from anywhere
  69. ChatGPT for iOS 1.2026.132
  70. Appshots, goal mode, and more 26.519
  71. ChatGPT for iOS 1.2026.139
  72. GPT-5.3-Codex and GPT-5.2 deprecated
  73. Computer use and mobile access on Windows 26.527
  74. Use Codex with Amazon Bedrock
  75. Terminal placement controls 26.601
  76. Build and deploy websites with Sites
  77. ChatGPT for iOS 1.2026.146
  78. Codex app updates 26.602
  79. Codex app 26.608
  80. ChatGPT for iOS 1.2026.153
  81. Usage resets and Browser Developer mode 26.609
  82. ChatGPT for iOS 1.2026.160
  83. More Codex features in the EEA, UK, and Switzerland
  84. Record & Replay and remote task handoff 26.616
  85. ChatGPT for iOS 1.2026.167
  86. Codex Remote reaches general availability
  87. ChatGPT for iOS 1.2026.181
  88. Codex joins the ChatGPT desktop app 26.707
  89. ChatGPT for iOS 1.2026.188
  90. ChatGPT for iOS 1.2026.195
  91. ChatGPT Voice and multi-folder projects 26.715
  92. ChatGPT for iOS 1.2026.202
  93. Sign in with ChatGPT (beta)
  94. Browser upgrades, multi-repository review, and image editing 26.727
  95. GPT-5.4 and GPT-5.4 mini retire from Codex on August 31
  96. Record & Replay expands to the EU, UK, and Switzerland
  97. ChatGPT for iOS 1.2026.209
  98. Introducing Daybreak Blue and Daybreak Red
  99. Linux desktop preview and agent imports
  100. Computer History
  101. Public plugin catalog CSV export
  102. ChatGPT for iOS 1.2026.223
  103. GitLab support in Codex cloud (Beta)
  104. Codex and ChatGPT updates
  105. Codex MCP server command deprecated
  106. Browser extensions, site tools, and cloud sign-in
  107. Trigger scheduled tasks from Gmail, Slack, and GitHub events
  108. ChatGPT for iOS 1.2026.230
  109. ChatGPT for iOS 1.2026.237
  110. Codex MCP server removed
  111. ChatGPT for iOS 1.2026.244
  112. Quick chats with Pets and Appshots on Windows 26.908
  113. GPT-5.3-Codex-Spark deprecated
  114. GPT-5.5 retires from ChatGPT, ChatGPT Work, and Codex on October 14
  115. ChatGPT for iOS 1.2026.251
  116. GPT-6 Sol and Luna in Codex and ChatGPT Work
  117. ChatGPT for iOS 1.2026.258
  118. macOS security update 26.924
  119. GPT-6.1 Sol in Codex and ChatGPT Work
  120. ChatGPT for iOS 1.2026.267
  121. ChatGPT for iOS 1.2026.272
  122. GPT-6.1 Sol Ultrafast in Codex and ChatGPT Work