LLM/AI Changelog

Updated 3 Jul 2026

AI Platform Changes That Affect Brand Visibility

Every update to ChatGPT, Gemini, Perplexity, Copilot and Google Search can change how your brand appears in AI-generated answers. We track release notes, API changes and documentation updates across major LLM platforms so you don't have to.

Total Updates
771
Copilot
771
ChatGPT
304
Gemini
296
Claude
70
GoogleAI
26
Perplexity
17
Pinned Highlights · 13
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today Jan 2025 Apr Jul Oct Jan 2026 Apr Jul 7 Jan 2025 · Copilot — Outlook: Switch between Work and Web grounding in Microsoft 365 Copilot Chat 8 Jul 2025 · Copilot — Excel: Copilot in Excel with Python | Reasoning Model Integration (Think Deeper) 22 Jul 2025 · Copilot — Microsoft 365 Copilot Chat: Researcheravailable in GA 19 Aug 2025 · Copilot — Microsoft 365 Copilot Chat: GPT-5 now available in Copilot Chat 3 Sep 2025 · Copilot — Microsoft 365 Copilot Chat: Personalize interactions with Copilot Memory 23 Dec 2025 · Copilot — Microsoft 365 Copilot app: GPT-5 powers Copilot Chat by default 27 Jan 2026 · Copilot — Microsoft 365 Copilot Chat: Copilot Chat model selector now offers GPT-5.2 24 Feb 2026 · Copilot — Microsoft 365 Copilot extensibility: Declarative agents upgraded to GPT‑5.1 10 Mar 2026 · Copilot — Microsoft 365 Copilot Chat: Explainable AI with deep and inline citations for co… 21 Apr 2026 · Copilot — Microsoft 365 Copilot chat: Rich Bing web answer cards in Copilot Chat 19 May 2026 · Copilot — Microsoft 365 Copilot Chat: OpenAI’s GPT‑5.5 Instant available in Copilot Chat [… 19 May 2026 · Copilot — Microsoft 365 Copilot Chat: OpenAI’s GPT 5.5 Thinking available in Copilot Chat … 16 Jun 2026 · Copilot — Microsoft 365 Copilot Chat: Anthropic’s Claude now available in Microsoft 365 Co…
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Copilot
Copilot 13 May 2025 copilot

Word: Key statistics at a glance in Copilot summaries

Key statistics at a glance in Copilot summaries
[Web]
Instantly see critical numbers—totals, dates, percentages, and more—in the Understanding tab, so you can grasp a document's quantitative story in seconds.
Learn more
.
Copilot
Copilot 13 May 2025 copilot

Word: Suggested questions help you explore any document

Suggested questions help you explore any document
[Web]
The Understanding tab now proposes smart questions about the file you're reading—just click one to see Copilot's answer and dive deeper without crafting your own prompt.
Learn more
.
Copilot
Copilot 13 May 2025 copilot

Copilot Studio: Single connector for knowledge and actions

Single connector for knowledge and actions
[Web]
You can now reuse connector actions across multiple Copilot deployments without recreating them each time. This feature lets you select a previously published action-such as one from Copilot for Sales-and publish it to other endpoints, such as Copilot for Customer Service, with just a few clicks. It's enabled by default and streamlines deployment while reducing duplication.
Learn more
.
Copilot
Copilot 13 May 2025 copilot

Excel: Advanced analysis with Python and Copilot

Advanced analysis with Python and Copilot
[Windows]
Chat with your spreadsheet and let Copilot run Python scripts to surface trends, build rich visuals, and test what-if scenarios-now fully localized for your team's language.
Learn more
.
Copilot
Copilot 13 May 2025 copilot

Microsoft 365 Copilot app: Copilot in Excel with Python for Mac

Copilot in Excel with Python for Mac
[Mac]
Speak plain English and let Copilot write and run Python for forecasting, machine learning, and rich visuals-results land right on the grid in Excel for Mac.
Learn more
.
Copilot
Copilot 13 May 2025 copilot

Microsoft Graph: Agent plugins for Semantic Kernel :

Agent plugins for Semantic Kernel :
[Developer]
Accelerate Copilot solutions by adding ready-made plugins that tap Microsoft 365 data and actions through Semantic Kernel-so you can build smarter agents with far less code.
Learn more
.
Copilot
Copilot 13 May 2025 copilot

OneDrive: Ask Copilot questions about images

Ask Copilot questions about images
[Web]
Select up to five pictures in OneDrive Web and chat with Copilot to summarize, extract text, or describe what's inside-perfect for cataloging photos or pulling details from scanned documents.
Learn more
.
Copilot
Copilot 13 May 2025 copilot

Word: Choose the level of detail for summaries when documents are opened

Choose the level of detail for summaries when documents are opened
[Windows, Mac, Web]
Tailor each document opening with your preferred summary style-select brief, standard, or detailed insights to match your workflow.
Learn more
.
Copilot
Copilot 13 May 2025 copilot

Word: Key statistics at a glance in Copilot summaries

Key statistics at a glance in Copilot summaries
[Web]
Instantly see critical numbers-totals, dates, percentages, and more-in the Understanding tab, so you can grasp a document's quantitative story in seconds.
Learn more
.
Copilot
Copilot 13 May 2025 copilot

Word: Suggested questions help you explore any document

Suggested questions help you explore any document
[Web]
The Understanding tab now proposes smart questions about the file you're reading-just click one to see Copilot's answer and dive deeper without crafting your own prompt.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Excel: Ask Copilot to extract insights from inserted images

Ask Copilot to extract insights from inserted images
[Windows]
Transform images in your Excel workflows into actionable data. Simply insert an image into the prompt area and ask Copilot to break down details and trends, so you can make informed decisions on the fly.
Copilot
Copilot 29 Apr 2025 copilot

Excel: Formula Explain on grid entry points

Formula Explain on grid entry points
[Web]
Understand complex formulas by triggering step-by-step explanations directly from the grid. Copilot breaks down calculations and clarifies references so you gain confidence when working with your data.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Excel: Paste images into Copilot chat

Paste images into Copilot chat
[Web, Windows]
Ask questions about images you insert into the prompt area to extract key data for your spreadsheets.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Excel: Seamless transition from clean data to Copilot chat

Seamless transition from clean data to Copilot chat
[Web]
After finalizing your data with Clean Data, effortlessly switch to Copilot chat for deeper insights and analysis.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Microsoft 365 Copilot extensibility: Agent Builder now available in new regions

Agent Builder now available in new regions
[Windows, Web]
You can now access Copilot Studio agent builder in Norway, Sweden, South Korea, and South Africa.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Microsoft 365 Copilot extensibility: Developers using Copilot Studio can use API key auth for actions in a declarative agent

Developers using Copilot Studio can use API key auth for actions in a declarative agent
Developers using Copilot Studio can now leverage API key authentication to perform actions in a declarative agent, enhancing security and integration ease.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Microsoft 365 Copilot extensibility: Grounding with metered consumption in Copilot Studio

Grounding with metered consumption in Copilot Studio
Makers can now ground their agents built in Copilot Studio with their enterprise data using metered consumption. This ensures compliant access to your enterprise data estate without need to export or egress content to an alternate location or public cloud, creating vector embeddings, or custom RAG solutions. This feature provides flexible and cost-effective access to secure data retrieval.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Microsoft 365 Copilot Chat: Microsoft 365 Copilot for GCC Environments: Wave 2

Microsoft 365 Copilot for GCC Environments: Wave 2
[Windows]
Bringing Microsoft 365 Copilot GCC your AI assistant for work in the GCC environment. It combines the power of Large Language Models with your work content and context, to help you draft and rewrite, summarize and organize, catch up on what you missed, and get answers to questions via open prompts. Copilot generates answers using the rich, people-centric data and insights available in the Microsoft Graph. Microsoft 365 Copilot GCC is now available in Stream, SharePoint, OneNote, and Pages in Loop.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Microsoft 365 Copilot Chat: Submit feedback on the agent builder experience

Submit feedback on the agent builder experience
[Windows, Web]
Improve your custom Copilot Chat solutions by providing targeted feedback on RAI and agent response during test chats. This direct input helps refine and enhance the builder experience.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Microsoft Purview: GCC Microsoft Purview capabilities for Microsoft 365 Copilot

GCC Microsoft Purview capabilities for Microsoft 365 Copilot
[Web]
Microsoft Purview is launching several capabilities in government cloud environments that help secure and govern data in Microsoft 365 Copilot. These are capabilities in Information Protection, Data Lifecycle Management, Audit, eDiscovery, and Communication Compliance. These capabilities are available once Microsoft 365 Copilot is deployed.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Outlook: Chat with Copilot in Outlook for Mac

Chat with Copilot in Outlook for Mac
[Mac]
The same Microsoft Copilot experience you can get in the Microsoft Teams app, at copilot.microsoft.com (work mode) and in other places is now available from within Microsoft Outlook for Mac. You can find the Copilot app in the left app bar.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Outlook: Prepare for meetings with AI-generated insights

Prepare for meetings with AI-generated insights
[Web]
Stay ahead of busy schedules by using the proactive "Prepare" button in your inbox to generate key meeting insights and summarize relevant files—helping you arrive ready to engage.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

SharePoint: Restricted access control enhancements

Restricted access control enhancements
[Web]
New enhancements for RAC policy for SharePoint administrators to restrict access to SharePoint sites including managing Microsoft 365 group connected sites with Microsoft 365 groups or Security groups.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Viva Learning: AI & Copilot Resources provider availability to all Viva Learning users

AI & Copilot Resources provider availability to all Viva Learning users
[Windows, Web, Teams]
The AI & Copilot Resources provider is now enabled by default for all Viva Learning users. Administrators now have the ability to manage the visibility of this provider within Viva Learning.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Viva Learning: Copilot Academy availability to all Microsoft 365 users

Copilot Academy availability to all Microsoft 365 users
[Windows, Web, Teams]
Copilot Academy is now accessible to users without Copilot licenses. Admins now have the option to select their preferred access settings for Copilot Academy.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Word: Coach is now generally available across all markets and languages that Copilot currently supports

Coach is now generally available across all markets and languages that Copilot currently supports
[Web]
Coach is now generally available across all markets and languages that Copilot currently supports, ensuring a consistent experience for every user.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Word: Reference a whole folder when prompting Copilot

Reference a whole folder when prompting Copilot
[Web]
Quickly attach a folder from OneDrive or SharePoint by typing a forward slash (/) or selecting the attach icon. Copilot now uses the 10 most recent files from your selected folder to streamline your document creation.
Learn more
.
Copilot
Copilot 29 Apr 2025 copilot

Word: Replace your selection with generated content

Replace your selection with generated content
[Web, Mac, Windows]
Selecting the Replace button lets you instantly replace your selected text with content that was generated in Draft with Copilot.
Copilot
Copilot 29 Apr 2025 copilot

Outlook: Prepare for meetings with AI-generated insights

Prepare for meetings with AI-generated insights
[Web]
Stay ahead of busy schedules by using the proactive "Prepare" button in your inbox to generate key meeting insights and summarize relevant files-helping you arrive ready to engage.
Learn more
.
Copilot
Copilot 16 Apr 2025 copilot

Excel: Access Copilot on-grid in Windows

Access Copilot on-grid in Windows
[Windows]
A Copilot icon appears right within your spreadsheet on Windows, giving you quick AI assistance as you work to keep your flow uninterrupted.
Copilot
Copilot 16 Apr 2025 copilot

Excel: Graph-grounded chat

Graph-grounded chat
[Windows, Mac, Web]
Ask Copilot in Excel for insights drawn from your chats, documents, meetings, and emails via Microsoft Graph—enhancing your workbook analysis with contextual organizational data.
Learn more
.
Copilot
Copilot 16 Apr 2025 copilot

Excel: Use Copilot to search for answers from the web

Use Copilot to search for answers from the web
[Windows, Mac, Web]
In Excel, simply ask Copilot to search the web for answers and integrate the insights directly into your workbook, making data analysis even smoother.
Learn more
.
Copilot
Copilot 16 Apr 2025 copilot

Microsoft 365 admin center: AI Admin role has permissions to manage agents

AI Admin role has permissions to manage agents
[Web]
As an AI Admin, you manage agents with various capabilities including creating and overseeing Copilot connections that index data in Graph and perform actions, controlling which makers can build these connections and regulating the data sources used, maintaining observability over all connections, approving or denying agents, pre-installing them without requiring consent, and viewing them in Microsoft 365 admin center integrated apps page.
Copilot
Copilot 16 Apr 2025 copilot

Microsoft 365 Copilot Chat: Get contextual suggestions during Copilot agent conversations

Get contextual suggestions during Copilot agent conversations
[Windows, Web]
Speed up tasks with AI-driven prompts for next steps in Copilot Chat. See real-time suggestions to refine queries, dive deeper into topics, or resolve issues faster during agent interactions.
Copilot
Copilot 16 Apr 2025 copilot

Microsoft 365 Copilot Chat: Support for longer prompts

Support for longer prompts
[Windows, Web]
Copilot Chat now supports larger inputs for smoother handling of extensive documents and data.
Copilot
Copilot 16 Apr 2025 copilot

Microsoft 365 Copilot extensibility: Discover agents for unlicensed and metered users

Discover agents for unlicensed and metered users
[Windows, Web]
Empower more users with easy access to agents tailored to their needs—even if they are unlicensed or metered—broadening Copilot's reach across your organization.
Learn more
.
Copilot
Copilot 16 Apr 2025 copilot

Microsoft 365 Copilot extensibility: Enable developer mode in Copilot Chat

Enable developer mode in Copilot Chat
[Developer]
Leverage Microsoft 365 Copilot Chat developer mode directly within your development tools, simplifying the process to build and test custom integrations.
Learn more
.
Copilot
Copilot 16 Apr 2025 copilot

OneNote: Copilot-powered organization in OneNote

Copilot-powered organization in OneNote
[Windows]
Transform a flat list of pages within a section to have an intuitive hierarchy. Ask Copilot in chat to organize your section and apply the update for a streamlined Notebook organization experience.
Learn more
.
Copilot
Copilot 16 Apr 2025 copilot

PowerPoint: Copilot in PowerPoint has improved performance when summarizing your presentation

Copilot in PowerPoint has improved performance when summarizing your presentation
[Web]
PowerPoint Copilot now updates its language models regularly to deliver faster summaries, helping you quickly review your presentation content.
Copilot
Copilot 16 Apr 2025 copilot

SharePoint: Author engaging web pages with Authoring

Author engaging web pages with Authoring
[Web]
Combine the power of Large Language Models, your data in the Microsoft Graph, built-in or custom templates, and existing documents to create high-quality SharePoint pages while ensuring enterprise-level data security and privacy.
Learn more
.
Copilot
Copilot 16 Apr 2025 copilot

Excel: Graph-grounded chat

Graph-grounded chat
[Windows, Mac, Web]
Ask Copilot in Excel for insights drawn from your chats, documents, meetings, and emails via Microsoft Graph-enhancing your workbook analysis with contextual organizational data.
Learn more
.
Copilot
Copilot 16 Apr 2025 copilot

Microsoft 365 Copilot extensibility: Discover agents for unlicensed and metered users

Discover agents for unlicensed and metered users
[Windows, Web]
Empower more users with easy access to agents tailored to their needs-even if they are unlicensed or metered-broadening Copilot's reach across your organization.
Learn more
.
Copilot
Copilot 2 Apr 2025 copilot

Excel: Gain insights with Copilot and Python in Excel on Web

Gain insights with Copilot and Python in Excel on Web
[Web]
Using everyday language, ask Copilot to perform advanced analytics like machine learning and predictive forecasting, which would usually take hours or require special skills. Copilot writes Python code and inserts it on the grid, providing deeper insights and stunning/ visuals. Available in multiple languages on Excel for the Web.
Copilot
Copilot 2 Apr 2025 copilot

Copilot Studio: Enhanced SharePoint URL support in Copilot Studio

Enhanced SharePoint URL support in Copilot Studio
[Web]
Previously, only SharePoint site URLs could be used as knowledge for Copilot Studio agents. Users can now use SharePoint file, folder, and site URLs, including links from the Share button or browser address bar; once the URLs are added, the agents will be grounded to the content within the URL. Additionally, more granular error messages help with transparency and managing expectations.
Learn more
.
Copilot
Copilot 2 Apr 2025 copilot

Copilot Studio: Public website scoping for agents

Public website scoping for agents
[Web]
Makers can now scope agents' knowledge sources to specific websites, enhancing the precision of web searches. This capability, previously available in custom agents from Microsoft Copilot Studio, is now extended to agents in the Microsoft 365 context.
Learn more
.
Copilot
Copilot 2 Apr 2025 copilot

Copilot Studio: SharePoint knowledge for agents

SharePoint knowledge for agents
[Web]
Makers can now leverage additional data sources, including Dataverse and SharePoint, when building autonomous agents. This expands the variety of use cases for autonomous agents.
Copilot
Copilot 2 Apr 2025 copilot

Copilot Studio: Use agent builder in Copilot chat

Use agent builder in Copilot chat
[Web]
Create custom agents in Copilot chat to streamline repetitive tasks and achieve consistency. Use specific instructions and grounding details to save time, reuse your agents, and enhance team productivity.
Learn more
.
Copilot
Copilot 2 Apr 2025 copilot

Excel: Gain insights with Copilot and Python in Excel on Web

Gain insights with Copilot and Python in Excel on Web
[Web]
Using everyday language, ask Copilot to perform advanced analytics like machine learning and predictive forecasting, which would usually take hours or require special skills. Copilot writes Python code and inserts it on the grid, providing deeper insights and stunning/ visuals. Available in multiple languages on Excel for the Web.
Learn more
.
Copilot
Copilot 2 Apr 2025 copilot

Excel: Read aloud for Excel text responses

Read aloud for Excel text responses
[Web]
Users can now use the Read Aloud button on the Copilot response card to have an audio narration of the response, enhancing accessibility and ease of information consumption.
Copilot
Copilot 2 Apr 2025 copilot

Microsoft 365 admin center: View security information and certification evidence

View security information and certification evidence
Admins in Microsoft 365 Admin center can view the evidence of audits, and self-attestation to provide further confidence as to the certification, and compliance, of public apps and agents.

Tracking what they’re building

Observed site activity — new pages appearing on each platform’s website, updated daily.

What is the LLM Changelog?

The LLM Changelog is a live, automated tracker that monitors release notes and documentation updates across the largest AI platforms — including OpenAI's ChatGPT, Google's Gemini, Perplexity AI, Microsoft Copilot and Google Search. Changes are crawled daily and presented in a single, searchable feed.

Why AI Platform Changes Matter for Brands

When AI models update their training data, adjust ranking signals or change how they cite sources, the brands and products they recommend can shift overnight. An API change to Gemini or a new feature in ChatGPT can alter which businesses get mentioned in millions of AI-generated responses.

Platforms We Track

We currently monitor ChatGPT release notes, OpenAI developer and model changelogs, Gemini API and app updates, Perplexity product and API changes, Microsoft 365 Copilot release notes, and Google Search Central documentation updates. New sources are added as the AI landscape evolves.

Built by reconnAI

reconnAI tracks how AI systems represent brands in their responses. We monitor mentions, sentiment and citations across ChatGPT, Gemini, Perplexity and more — helping businesses understand and improve their visibility in the age of AI search. Learn more →