March 22, 2026 5 min read

March 2026

A living timeline of every major feature change, update, and launch across AI search platforms — ChatGPT Search, Google AI Overviews, Microsoft Copilot, Perplexity, and Claude. Updated regularly.

Bookmark this page. It's the fastest way to stay current on how AI search is evolving.

Last updated: March 2026

March 2026

DatePlatformChangeSEO Impact
Mar 2026Google AI ModeAI Mode expanding to more countries and query types. Now handles complex multi-step research queries with follow-up questions.More informational queries getting AI-generated answers instead of traditional results. Content needs to be structured for extraction.
Mar 2026ChatGPTChatGPT Shopping feature expanding — product recommendations with images, pricing, and direct purchase links integrated into conversational responses.E-commerce brands need product feeds and structured data optimised for ChatGPT's shopping crawl. E-commerce SEO now includes AI shopping visibility.
Mar 2026PerplexityPerplexity Pages gaining traction — users creating and sharing curated research pages that cite sources.Being cited in Perplexity Pages creates persistent backlink-like references. Authoritative, well-structured content gets cited more.

February 2026

DatePlatformChangeSEO Impact
Feb 2026GoogleAI Overviews now appearing for approximately 30-40% of informational queries in the US. Expanding to more countries.Pages ranking in positions 1-10 are primary citation sources. AI Overview optimisation is now essential, not optional.
Feb 2026Microsoft CopilotCopilot Vision rolling out — can see and interpret what's on your screen, answer questions about web pages you're viewing.Copilot becoming more contextual. Content that's visually clear and well-structured benefits from screen-reading capabilities.
Feb 2026ChatGPTGPT-4.5 released with improved reasoning and reduced hallucination. ChatGPT Search using updated model for better source selection.Higher-quality source selection means authoritative, well-cited content is increasingly favoured over thin pages.

January 2026

DatePlatformChangeSEO Impact
Jan 2026GoogleAI Mode launched as a dedicated tab in Google Search for select users. Provides deep research with multi-step reasoning and cited sources.AI Mode pulls from Google's index but reformats content heavily. AI SEO strategy needs to account for both traditional rankings AND AI Mode citations.
Jan 2026PerplexityPerplexity hits 100M+ monthly active users. Revenue-sharing program for publishers whose content is cited.Allowing PerplexityBot in robots.txt now has a direct revenue incentive for publishers. Review your robots.txt configuration.

Q4 2025

DatePlatformChangeSEO Impact
Dec 2025ChatGPTChatGPT Search rolling out to free users (previously Pro/Plus only). Massive expansion of AI search user base.Volume of AI-referred traffic increasing significantly. Track via utm_source=chatgpt.com in GA4.
Nov 2025GoogleAI Overviews expanded to 100+ countries. Now includes shopping, local, and travel verticals.AI Overviews no longer a US-only concern. Australian and APAC SEOs need to optimise for them now.
Oct 2025MicrosoftCopilot deeply integrated into Windows 11 24H2 update. Every Windows user now has AI search built into their OS.Bing optimisation matters more than ever — Copilot uses Bing's index for all web queries.
Oct 2025PerplexityPerplexity launches advertising. Sponsored answers appear alongside organic citations.Organic citation in Perplexity now competes with paid placements. Quality and authority signals become more important for organic visibility.

Q3 2025

DatePlatformChangeSEO Impact
Sep 2025GoogleAI Overviews begin showing for commercial/transactional queries, not just informational.Product pages and commercial content now affected. E-commerce SEO strategies need AI Overview consideration.
Aug 2025ChatGPTChatGPT memory feature improved — remembers user preferences across conversations, personalising search results.Brand mentions in previous ChatGPT conversations can influence future recommendations. Brand presence in AI training data matters more.
Jul 2025ClaudeClaude 3.5 Sonnet released with improved web search capabilities. Claude begins competing more directly as a search alternative.Another AI platform to optimise for. Ensure ClaudeBot is allowed in robots.txt.

Q2 2025

DatePlatformChangeSEO Impact
Jun 2025GoogleGoogle I/O announces AI Mode as a core Search experience. Gemini integration deepens across Search, Maps, and Shopping.Google's commitment to AI-first search confirmed. Traditional blue links declining for informational queries.
May 2025GoogleAI Overviews quality improvements — fewer hallucinations, better source attribution, expandable citations.Google increasingly citing pages with strong E-E-A-T signals. Author expertise and source credibility matter more.
Apr 2025PerplexityPerplexity Pro launches with higher query limits and access to multiple AI models (GPT-4, Claude, Gemini).Perplexity users getting more sophisticated. Content quality bar rises for citation.

Q1 2025

DatePlatformChangeSEO Impact
Mar 2025GoogleMarch 2025 Core Update — significant ranking volatility. AI Overviews appearing for more query types post-update.Sites with thin content, weak E-E-A-T, or poor technical foundations hit hardest. Content quality bar raised again.
Feb 2025ChatGPTOpenAI launches ChatGPT Search as a default feature for Plus and Pro subscribers. No longer requires manual activation.ChatGPT search volume jumps significantly. ChatGPT optimisation becomes a real SEO channel, not a novelty.
Jan 2025MicrosoftCopilot rebranded and repositioned as Microsoft's primary AI interface. Deep integration with Edge, Windows, and M365.Copilot no longer optional — it's the default search experience for Microsoft ecosystem users.

2024 Highlights

DatePlatformChangeSEO Impact
Oct 2024ChatGPTChatGPT Search (SearchGPT) launches. Real-time web browsing with cited sources in conversational format.A new search engine is born. Optimising for ChatGPT becomes a distinct discipline.
Aug 2024GoogleAI Overviews exit Labs and roll out to all US users. First major deployment of generative AI in core search.The moment AI search went mainstream. Every SEO strategy needs an AI component from this point.
May 2024GoogleGoogle I/O reveals AI Overviews (rebranded from SGE). Announces rollout to 1 billion users by year end.Signal that Google is committed to AI-first search. AI Overview optimisation moves from experimental to essential.
Mar 2024PerplexityPerplexity raises $73.6M at $520M valuation. Establishes itself as the leading AI-native search engine.Perplexity is not going away. SEOs need to consider it alongside Google and ChatGPT.

How to Use This Tracker

If you're an SEO practitioner or brand owner, use this page to:

  • Stay current on what each AI search platform is doing — without reading 20 different sources
  • Prioritise your AI SEO work — focus on the platforms making the biggest changes
  • Brief your team or clients — share this page as a single reference for AI search developments
  • Spot opportunities early — new features often create first-mover advantages for brands that adapt quickly

For a deeper dive into optimising for each platform, see:

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About the Author

Lawrence Hitches is an AI SEO consultant based in Melbourne and General Manager of StudioHawk, Australia's largest dedicated SEO agency. He specialises in AI search visibility, technical SEO, and organic growth strategy — leading a team of 115+ across Melbourne, Sydney, London, and the US. Book a free consultation →