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Tech news picked on 2026-10-28

  1. Review of taking the official Claude certification 4 exam, and notes on the Japanese exam and the December content revision

    • The Claude certification run by Anthropic is open to staff of companies that have joined the Claude Partner Network (a group of companies that work with Anthropic). According to the source, the exam became available in Japanese from the middle of October.
    • The author sat 4 exams over 2 weeks and passed 3 of them. The author wrote that CCDV-F and CCAR-P were scored at 90% or higher, while CCAR-F scored 702 points, which was 18 points short of the passing score of 720.
    • The source cites Pearson VUE guidance saying that the content of CCAO-F, CCDV-F, and CCAR-P changes from December 7. The author recommended taking the exam in November, before this revision, to feel more secure.
    • Official materials are mostly videos and web content and are hard to read through, so the author had Claude organize the study material, created a 4-choice practice question set, and solved it on a smartphone. The author wrote that CCAR-P was passed after solving this question set 1 times.

    qiita.comSummary and discussion

  2. Google DeepMind's world model Genie 4 opens first to trusted testers as a real-time simulation that changes scenes with words

    • Genie 4 is a world model that creates a virtual world from a text description of a scene, which users can explore by moving through it with a keyboard. The source says instructions to change the weather or add people and objects are also reflected in real time.
    • According to the source, Genie 4 generates sound together with video, including ambient sounds, music, and character dialogue. The company said this is the first time a real-time world model has generated sound directly.
    • The source says Gemini 3.8 Flash watches the generation process, divides goals into several steps, and checks whether each step succeeded. This is the design explanation offered by Google, and the source does not include external verification results.
    • The release starts as a research preview for trusted testers. Google AI Ultra subscribers will first have access through Project Genie, and early partners will have access through the Gemini API and Google AI Studio. The source does not specify when general release will happen.

    deepmind.googleSummary and discussion

  3. Recording Claude Code session notes makes design reasons and work history easier to find later

    • Developer @qwertyhoge introduces a self-made work instruction file (skill) that they call with the /decision-log command when a Claude Code task ends. It selects technical choices, alternatives not adopted and their reasons, parts where AI suggestions were corrected, whether self-review was done before the PR, and whether code license and confidential information were checked, then appends them to a monthly record file.
    • When there is an important choice, they also write an ADR (Architecture Decision Record, a document that records the background and alternatives of a design decision). According to the original, over about 1 months they left 5 work records and 10 ADRs.
    • The author explains that AI tends to interpret its own work favorably, so they added an instruction not to write about things that were not done. They wrote that across several tests with the Opus 5.5 model they did not see cases of it writing about things that did not happen, but this is the author's personal observation.
    • Looking at the records, the author found they had rarely done self-review before PRs. They therefore created a separate skill and hook that enforce review, so a PR cannot be created without going through review.

    qiita.comSummary and discussion

  4. Google Workspace Weekly News: Sheets Box Plot and Mobile Voice Document Creation Added

    • Google Sheets now includes a box plot chart as a standard feature, showing how numbers are spread out. When you select a range of numbers, it calculates and displays the minimum, median, maximum, and outliers without a separate formula.
    • Docs Live in the Google Docs mobile app (Android, iOS) is a feature that creates structured documents through conversational speech. According to the original text, it will roll out in stages to eligible Workspace users.
    • Real-time speech translation in Google Meet has been expanded to support 63 languages along with automatic language detection. The original text says it is available on web and mobile (Android, iOS), and that on Meet-dedicated devices it is listen-only.
    • Google Vault can now export Gemini conversations from Workspace filtered by conditions. Admins can target conversations from Gmail, Drive, Docs, Sheets, Slides, Meet, and others, and the original text says Vault's security and privacy controls apply as they are.

    workspaceupdates.googleblog.comSummary and discussion

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