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January 2026
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0 releasesNo tracked releases for this day.
February 202625 releases
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500K downloads day 1Codex App launch (macOS)Codex in GitHub AgentHQCodex in Xcode 26.3Live workshopAgent HQ betaCodex in VS CodeAll paid plansGPT-5.3-Codex launchNew SOTA on SWE-bench
300M ChatGPT usersCodex hackathon recap7
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9Ads test in ChatGPTCodex in Cursor + GitHubDeep Research → GPT-5.2Export + follow-up Q11
12Cerebras partnershipGPT-5.3-Codex-SparkNVIDIA ~30K engineers13
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15@steipete joins OpenAI
Personal AI future16
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24All developers accessGPT-5.3-Codex in Responses API25
26Code → Design → CodeFigma integration27
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February 2026
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Feb 26
2 releasesMarch 202647 releases
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3Codex APAC hackathonFewer refusalsGPT-5.3 Instant GACodex for WindowsNative agent sandboxCodex speed boostGPT-5.4 launchGPT-5.4 Thinking + ProCodex for OSS programCodex Security previewCodex Security → Pro8
9Acquiring PromptfooEvals + red-teaming10
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12Automations now GAGPT-5.4 #1 CursorBench13
14Codex goes globalMeetups in 20+ cities15
16Codex × Notion
Subagents in Codex3.3× Codex usageAPI + ChatGPT + CodexGPT-5.4 mini + nanoCommunity hub launchOSS applications openDesktop global shortcutIndia expansion$100 credits (US+CA)Codex for StudentsFaster agent workflows22
23ChatGPT File LibraryPlus / Pro / Business24
25$10K API credits prizeCodex Creator ChallengeSearch in Codex app
Codex dominates dev workflow
Michigan data center steel up
Plugins launch in CodexCodex Skills for humans
Markdown is the new PythonCodex SecurityAsync tasksRealtime API refresherVoice agents at scale lessons$40B round closedCodex full PR workflow
Codex MCP walkthroughCrypto apps via CoinbaseMarch 2026
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April 202635 releases
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1Image optimization in one shotLinear plugin in Codex2ChatGPT in CarPlayCodex team pricingNew pay-as-you-go pricing3Kath joins Codex teamVoice agent debugs slides live4Codex × Vercel deployment5Codex App ServerGPT-5.4 auto-translates docsCodex Pro tiermacOS app cert updateAgents SDK sandboxes16Codex automationsCodex computer useCodex image generationGitHub review commentsGPT-Rosalind launchIn-app browser feedbackMore Codex pluginsRemote Connection alphaCodex Chronicle memory21Euphony chat log visualizer22OpenAI launched workspace a...OpenAIDevs highlighted gpt-...23Auto-review mode availableCodex browser use expandedGPT-5.5 launch24GPT-5.5 available in APIgpt-realtime-1.5HyperFrames official Codex28Codex: update repo to GPT-5.529DevDay 2026 announcedFigma plugin: FigJam boardsWebSocket faster agent loops
Image optimization in one shotLinear plugin in CodexChatGPT in CarPlayCodex team pricingNew pay-as-you-go pricingKath joins Codex teamVoice agent debugs slides liveCodex × Vercel deploymentCodex App ServerGPT-5.4 auto-translates docs6
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9Codex Pro tier10
11macOS app cert update12
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15Agents SDK sandboxesCodex automationsCodex computer useCodex image generationGitHub review commentsGPT-Rosalind launchIn-app browser feedbackMore Codex pluginsRemote Connection alpha17
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20Codex Chronicle memoryEuphony chat log visualizerOpenAI launched workspace a...OpenAIDevs highlighted gpt-...Auto-review mode availableCodex browser use expandedGPT-5.5 launchGPT-5.5 available in API25
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27gpt-realtime-1.5HyperFrames official CodexCodex: update repo to GPT-5.5DevDay 2026 announcedFigma plugin: FigJam boardsWebSocket faster agent loops30
April 2026
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May 202623 releases
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6MRC open networking protocolCodex Chrome extensionGPT-Realtime-2 voice modelChain of thought monitorsGPT-Realtime-2 CRM integration10
11Codex OpenAI Developers pluginDaybreak cyber defense plat...OpenAI Deployment CompanySymphony: auto agent per task13
14Codex hooks + access tokensCodex mobile app previewRemote SSH GA15
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18Codex remote Mac controlGuaranteed Capacity offeringSynthID watermarkMath breakthrough proofCodex AppshotsCodex team plugins sharingAdvanced annotation mode23
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27Private MCP serversWorkload Identity Federation28
29Rosalind BiodefenseWindows users, this one’s30
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May 2026
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May 29
2 releasesJune 202635 releases
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1OpenAI on AWS GA2App building easierFaster preparationQuestion to modelWe’re making Codex more useful3We’re bringing new capabili...4ChatGPT memory systemCodex activity hubiOS app loop in CodexMemory controls reviewModeration scores in APIUI previewWe’ve been researching new ...5Account suspension fixCodex feels like flyingCodex profile share cardCodex state persistenceMore Codex app polishToday’s Codex quality-of-li...Realtime API experiences9ChinaRxiv papers freeWeb image searchGPT-5 life sciences research workflowLifeSciBench benchmark18Codex Record & ReplayGPT-5 rare disease diagnosis studyModel behavior under high-stakes task pressureOpenAI Daybreak Cyber Partner ProgramOpenAI Daybreak Patch the PlanetCodex Remote is generally available on all ChatGPT plans26GPT-4.5 retired from ChatGPT27Copy from Codex. Paste into Slack. Keep the Markdown. Bullets, bold text, code, and links now preserve formatting; large pasted blocks no longer hang the UI; draft text survives thread handoff; and pasted image previews support arrow-key navigation.More Codex app fixes: Thread switching does less background work, Codex can show deeper local history without loading everything at once, archived chats are easier to scroll through and delete, and Dock and sidebar unread badges stay in sync.🆕 Codex quality-of-life updates landed this week Starting with long threads: scrolling is smoother now, and your place stays put as you move through the conversation.We’re introducing GeneBench-Pro, a research-level benchmark for a harder kind of AI progress: ho
OpenAI on AWS GAApp building easierFaster preparationQuestion to modelWe’re making Codex more usefulWe’re bringing new capabili...ChatGPT memory systemCodex activity hubiOS app loop in CodexMemory controls reviewModeration scores in APIUI previewWe’ve been researching new ...Account suspension fixCodex feels like flyingCodex profile share cardCodex state persistenceMore Codex app polishToday’s Codex quality-of-li...6
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8Realtime API experiencesChinaRxiv papers freeWeb image search10
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17GPT-5 life sciences research workflowLifeSciBench benchmarkCodex Record & ReplayGPT-5 rare disease diagnosis studyModel behavior under high-stakes task pressure19
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22OpenAI Daybreak Cyber Partner ProgramOpenAI Daybreak Patch the Planet23
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25Codex Remote is generally available on all ChatGPT plansGPT-4.5 retired from ChatGPTCopy from Codex. Paste into Slack. Keep the Markdown. Bullets, bold text, code, and links now preserve formatting; large pasted blocks no longer hang the UI; draft text survives thread handoff; and pasted image previews support arrow-key navigation.More Codex app fixes: Thread switching does less background work, Codex can show deeper local history without loading everything at once, archived chats are easier to scroll through and delete, and Dock and sidebar unread badges stay in sync.🆕 Codex quality-of-life updates landed this week Starting with long threads: scrolling is smoother now, and your place stays put as you move through the conversation.28
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30We’re introducing GeneBench-Pro, a research-level benchmark for a harder kind of AI progress: hoJune 2026
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July 20269 releases
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6ChatGPT for PowerPoint is generally available for Enterprise and EduExcel/Sheets and Workspace Agent move to token-based credit pricingCodex tasks can be created, searched, opened, forked, and managed from ChatGPT iOS7
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9GPT-5.6 Sol, Terra, and Luna general availabilityGPT-5.6 Sol rolls out in ChatGPTChatGPT Work agent for long-running tasksPlugin Directory replaces the App DirectoryCodex joins the ChatGPT desktop app on macOS and WindowsCodex adds inline editing, PR sidebar review, and multi-repository projects10
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July 2026
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Jul 9
6 releases@OpenAI · @OpenAIDevs · @sama · @gdb · @romainhuet · @npew · @DanielEdrisian · @embirico · @bolinfest · @steipete