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GPT-6 reaches free ChatGPT users, Schneider buys PTC for $22.6B, GitHub stacks pull requests, and Margaret Hamilton dies at 90

AI shifted for everyday users this week: ChatGPT's free tier moved to GPT-6, while Gemini's free tier dropped to its smallest model. Python 3.15.0 also shipped, with lazy imports and a built-in frozendict. Beyond AI, a $22.6 billion software deal, a GPU cloud raising up to $4 billion, new Surface hardware and the death of the woman credited with naming software engineering filled out all six desks.

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  1. ChatGPT brings GPT-6 and Intelligent UI to free users

    Paid plans got GPT-6 on October 7 and Free and Go users on October 8. Free users get GPT-6 Luna and interactive answers called Intelligent UI.

  2. Schneider Electric to buy PTC for $22.6 billion

    Schneider will pay $205 a share in cash for the maker of Creo, Windchill and Onshape. The deal should close in Q3 2027.

  3. GitHub stacked pull requests are now generally available

    Since October 6, every github.com plan can stack dependent pull requests, with stack-aware merge queues and the gh stack CLI.

  4. Margaret Hamilton, Apollo software pioneer, dies at 90

    She led the MIT team behind Apollo's flight software and is credited with coining the term software engineering. She died on September 30.

  5. Lambda is raising up to $4B ahead of a 2027 IPO

    The GPU cloud's round is led by Blackstone and Coatue at a $14.5B pre-money valuation. Its backlog jumped from $15B to $50B in three months.

  6. Surface Laptop Ultra with RTX Spark starts at $2,599

    Microsoft pairs Nvidia's RTX Spark chip with up to 128 GB of shared memory. Preorders are open and it ships October 16.

  7. Python 3.15.0 ships with lazy imports and frozendict

    Out October 9 with 5,643 commits from 1,012 contributors, it also makes UTF-8 the default encoding and speeds up the JIT by 7% to 12%.

  8. Gemini's free tier drops to Flash-Lite only on October 9

    Free Gemini app users lose Flash and Pro today. AI Plus, at $4.99 a month, loses Pro on a date Google emails to each subscriber.

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