https://planlimits.app/changelog/Dated AI coding plan and usage-limit changes, each with a vendor source. By PlanLimits.enhttps://planlimits.app/changelog/#2026-10-14-openai-codexplanlimits-2026-10-14-openai-codex-GPT-5.5 retired from Codex with ChatGPT Wed, 14 Oct 2026 12:00:00 GMTGPT-5.5 retires from Codex with ChatGPT sign-in at noon PDT (19:00 UTC). API-key sessions unaffected. Source: https://learn.chatgpt.com/docs/pricing (checked 2026-10-19)https://planlimits.app/changelog/#2026-08-25-openai-codexplanlimits-2026-08-25-openai-codex-5-hour limit restored for PlusTue, 25 Aug 2026 12:00:00 GMT5-hour limit returned for Plus across Codex and ChatGPT Work; Pro $100/$200 kept without 5-hour limit 'for the upcoming months'. Announced by Codex lead Thibault Sottiaux on X; OpenAI's pricing page now states 'Pro plans currently have no five-hour limit' and publishes Plus 5h estimates. Source: https://learn.chatgpt.com/docs/pricing (checked 2026-10-19)https://planlimits.app/changelog/#2026-07-12-openai-codexplanlimits-2026-07-12-openai-codex-Codex 5-hour window temporarily suspendeSun, 12 Jul 2026 12:00:00 GMTOpenAI temporarily removed the 5-hour usage limit for Plus, Business and Pro, leaving weekly limits. OpenAI Support confirmed on the official forum it was temporary, as part of an incident response. Source: https://community.openai.com/t/why-the-5-hour-reset-missing/1386707 (checked 2026-10-19)https://planlimits.app/changelog/#2026-06-18-gemini-cliplanlimits-2026-06-18-gemini-cli-Gemini CLI stops serving Google AI Pro/UThu, 18 Jun 2026 12:00:00 GMTGemini CLI and Code Assist IDE extensions stopped serving Google AI Pro, Ultra and free Code Assist for individuals; Google directs those users to Antigravity CLI. Code Assist Standard/Enterprise and paid API keys unaffected. Source: https://developers.google.com/gemini-code-assist/docs/deprecations/code-assist-individuals (checked 2026-10-19)https://planlimits.app/changelog/#2026-06-01-github-copilotplanlimits-2026-06-01-github-copilot-Copilot moves to usage-based GitHub AI CMon, 01 Jun 2026 12:00:00 GMTPremium request units replaced by token-based AI Credits on all plans; code review also consumes Actions minutes; Copilot Max upgrades enabled. Base prices unchanged. Source: https://github.blog/changelog/2026-06-01-updates-to-github-copilot-billing-and-plans/ (checked 2026-10-19)https://planlimits.app/changelog/#2026-05-19-gemini-cliplanlimits-2026-05-19-gemini-cli-Google announces Gemini CLI → AntigravitTue, 19 May 2026 12:00:00 GMTAntigravity CLI launched; consumer Gemini CLI cutoff set for 2026-06-18. Source: https://developers.googleblog.com/en/an-important-update-transitioning-gemini-cli-to-antigravity-cli/ (checked 2026-10-19)https://planlimits.app/changelog/#2026-04-27-github-copilotplanlimits-2026-04-27-github-copilot-GitHub announces Copilot usage-based bilMon, 27 Apr 2026 12:00:00 GMTAnnouncement that all Copilot plans would switch to AI Credits on 2026-06-01; fallback to cheaper models after exhausting allowance removed. Source: https://github.blog/news-insights/company-news/github-copilot-is-moving-to-usage-based-billing/ (checked 2026-10-19)