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Data & AI watch, week of 19 to 25 October 2026

Fabric data agents become more accurate on SQL and DAX, with a migration due by 6 November for anyone connecting them to Microsoft Foundry. On the AI side, two critical PHP flaws found with the help of AI keep security teams busy, and the AI Act gets its first harmonised standard.

By Matthieu · 7 min read

Section A

Power BI and Microsoft Fabric

DeadlineBefore 6 November 2026

Foundry agents: move to the Fabric IQ tool before 6 November

Announced on 20 October: the integration that connected a Microsoft Foundry agent to a Fabric data agent through a custom tool is supported until 6 November 2026. Its replacement is the Fabric IQ (OneLake Catalog) tool, in preview, which exposes each published data agent as an MCP tool. A single Foundry agent can now call several data agents, picked by name from the catalog. The steps: publish the data agent with a detailed description, add the Fabric IQ tool in Foundry, update the instructions, remove the old tool, then test.

Generally available19 October 2026

Data agents: more reliable SQL and DAX generation, rolling out 2 to 10 November

Advanced SQL and DAX query generation in Fabric data agents is now generally available. Before writing its query, the agent explores the schema, tests joins and looks up the values actually stored, so it maps "California" to the stored value "CA". On semantic models, answers are consistent across the agent, Power BI and Microsoft 365 Copilot. The improvements reach the standard runtime from 2 to 10 November. Two settings arrive for SQL sources, in preview: schema descriptions, and Markdown "topics" consulted only when the question relates to them. On its own tests, Microsoft reports DAX accuracy rising from 89% to 92% and median response time almost halved.

Preview19 and 20 October 2026

Fabric Data Warehouse: more concise T-SQL, native medians and Python functions

Four language additions arrive in preview: GROUP BY ALL and ORDER BY ALL, which reuse the SELECT columns, QUALIFY, which filters after a window function without a subquery, and the FROM … SELECT form, which starts with the source. The warehouse and the lakehouse SQL analytics endpoint gain MEDIAN, QUANTILE and their approximate versions, plus aggregate syntax for PERCENTILE_CONT and PERCENTILE_DISC. Finally, a T-SQL external function can call a Python function from Fabric User Data Functions, from a SELECT, INSERT or UPDATE: sending a Teams message, reading a secret from Azure Key Vault, checking an IBAN or a VAT number.

Preview21 October 2026

Migration Assistant: Teradata support, and migrations in stages

The migration assistant for Fabric Data Warehouse now accepts Teradata as a source (preview): a ZIP archive of SQL and BTEQ scripts is translated to T-SQL, tables, views, procedures, functions and macros are created, and whatever needs rework is grouped in an "Objects to fix" list. The assistant also handles incremental migration: one business domain at a time, into an empty, previously migrated or existing warehouse, with naming conflicts flagged and direct dependencies added automatically. It migrates definitions; data is loaded in the next step.

Preview22 October 2026

Real-Time Dashboards: Copilot draws custom visuals

In Fabric real-time dashboards, you describe the operational view you need in plain language, and Copilot generates the KQL query and an HTML visual, added as a new tile. The same day, Eventstreams learned to tell apart several event types within one stream, each with its own schema, and to process each one separately.

Section B

AI news

Cybersecurity21 October 2026

PHP: two critical flaws found with the help of AI, patches to install

On 21 October the PHP project released versions 8.5.12, 8.4.27, 8.3.36 and 8.2.35, fixing two vulnerabilities rated 9.2 out of 10 (CVE-2026-109618 and CVE-2026-109619). They allow unauthenticated remote code execution, with the highest risk for mod_php. Minimal backports exist for the 7.4 to 8.1 branches, and updating remains the only complete protection. The security firms Calif, working with OpenAI, and Wiz found them with the help of AI models. As a precaution, Finland took some public online services offline and the BBC some of its pages.

Regulation19 October 2026

AI Act: the first harmonised standard, on quality management systems

The EN 18286:2026 standard, developed by CEN and CENELEC, has been published in the Official Journal of the EU. It describes the quality management system that Article 17 of the AI Act requires from providers of high-risk AI systems, and applying it gives a presumption of conformity with those requirements. It is organised around the AI system lifecycle and layers on top of ISO 9001, ISO/IEC 42001 or existing sector standards. The Commission expects further harmonised standards to follow.

Models and API23 October 2026

OpenAI API: older GPT-4, o1 and o3-mini models retired since 23 October

As announced in April, OpenAI retired a series of older models from its API on 23 October, including gpt-4, gpt-4-turbo, gpt-4o-2024-05-13, gpt-3.5-turbo, o1, o3-mini, o4-mini and gpt-image-1. Fine-tuned models follow their base model. OpenAI recommends gpt-5.6-sol, gpt-5.6-terra or gpt-5.6-luna as replacements, depending on the case. Next dates: Evals become read-only on 31 October, and the Evals platform, the v1/prompts API and Agent Builder shut down on 30 November.

Standards22 October 2026

Agent Skills joins the foundation that already hosts MCP

Anthropic is handing the Agent Skills open standard, which describes an agent's skills and working methods, to the Linux Foundation's Agentic AI Foundation, already home to the Model Context Protocol. Engineers from Google and OpenAI will maintain it alongside Anthropic's. According to Anthropic, more than 70 platforms have integrated it, including ChatGPT, GitHub Copilot and VS Code. Versioned releases, a formal proposal process and security guidance for installing skills are planned.

Market21 October 2026

OpenAI models and Codex come to Google Cloud

OpenAI and Google Cloud announced that OpenAI models and Codex agentic workflows are coming to Model Garden, with Google Cloud's access controls and data governance. According to OpenAI, purchases will go through Google Cloud Marketplace and can count towards existing spending commitments, with general availability planned in the coming weeks.

Sources and limits

This digest draws on Microsoft's Fabric blog, read through its RSS feed, the PHP project's security advisory, the European Commission, Anthropic and OpenAI's developer forum. The Power BI blog published nothing during the week, and the October Fabric summary had yet to appear. The purchasing terms for OpenAI models on Google Cloud are reported from the press, as OpenAI's own page could not be read directly. Anthropic's IPO filing on 26 October will be covered next week.

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