Programming Tech Brief By HackerNoon

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100

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Oct 2026

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Learn the latest programming updates in the tech world.

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60 recent

October 27, 202612 min

Stop Ignoring the Crease: Ship Your iOS App for iPhone Duo Before the April 2027 Deadline

This story was originally published on HackerNoon at: https://hackernoon.com/stop-ignoring-the-crease-ship-your-ios-app-for-iphone-duo-before-the-april-2027-deadline . iPhone Duo for iOS developers: the new SDK and APIs, and what broke in a real app adapted on the simulator before the device went on sale. Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #ios , #swift , #foldable-phones , #appstore , #mobile-app-development , #iphone-duo , #apple , #hackernoon-top-story , and more. This story was written by: @jemsberliner . Learn more about this writer by checking @jemsberliner's about page, and for more stories, please visit hackernoon.com . iPhone Duo is here. I adapted every screen of my app on the simulator and shipped the update before the device was on sale. In this article I go through the new APIs Apple added for the Duo and the non-obvious things that broke in my app along the way, plus what the April 2027 screenshot rule means for you.

October 27, 20268 min

i'm 13 and i built a global hackathon for teens with almost no budget. here's how.

This story was originally published on HackerNoon at: https://hackernoon.com/im-13-and-i-built-a-global-hackathon-for-teens-with-almost-no-budget-heres-how . At 13, I built a free global hackathon for teens from Hanoi with almost no budget. What worked, what failed, and how I found six sponsors. Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #hackathon , #teenagers , #game-jam , #game-development , #teen-hackathons , #hackathons , #online-hackathon , #hackernoon-top-story , and more. This story was written by: @checkpoint-hacks . Learn more about this writer by checking @checkpoint-hacks's about page, and for more stories, please visit hackernoon.com . I'm 13 and I'm a student living in Hanoi. Seven weeks ago, I thought: "should I create a hackathon?". Today, that same idea has turned into a free, online hackathon for ages 13-18 with around 50 registrants from 15 countries, with over $10,000 worth of prizes and four judges. Here's what worked in my process, what failed, and what it takes to run such an event for people my own age.

October 26, 20268 min

My Tests Fail If Anyone Types a Dollar Amount by Hand

This story was originally published on HackerNoon at: https://hackernoon.com/my-tests-fail-if-anyone-types-a-dollar-amount-by-hand . A one-line Vitest rule bans hand-typed prices in MDX; components and build-time SVG charts pull every number from one function. Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #programming , #javascript , #web-development , #testing , #astro , #data-visualization , #svg , #static-site-generator , and more. This story was written by: @horushe93 . Learn more about this writer by checking @horushe93's about page, and for more stories, please visit hackernoon.com . I run a concrete cost calculator whose data refreshes monthly, so any price typed into an article goes stale. My rule: no dollar sign followed by a digit anywhere in prose. A Vitest test enforces it, MDX components put computed numbers inside sentences, and one pure function feeds the table, a zero-JS SVG chart and its alt text. Tests also pin the direction of each claim the prose makes.

October 25, 20268 min

Tic Tac Toe in SwiftUI, Done Properly: Value-Type State, Win Detection and Minimax AI

This story was originally published on HackerNoon at: https://hackernoon.com/tic-tac-toe-in-swiftui-done-properly-value-type-state-win-detection-and-minimax-ai . The smallest game worth architecting: an immutable board, testable rules, a view that just renders state, and the classic AI you can bolt on in 40 lines Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #ios , #swiftui , #mobile-app-development , #game-development , #mobile-game-development , #minimax-ai , #swiftui-guide , #ai-game-development , and more. This story was written by: @aryansbtloe . Learn more about this writer by checking @aryansbtloe's about page, and for more stories, please visit hackernoon.com . The smallest game worth architecting: an immutable board, testable rules, a view that just renders state, and the classic AI you can bolt on in 40 lines

October 24, 20264 min

We Were Never Asked to Write Code. We Were Asked to Solve Problems.

This story was originally published on HackerNoon at: https://hackernoon.com/we-were-never-asked-to-write-code-we-were-asked-to-solve-problems . EXANTE CTO Richard Forss draws on the dot-com crash and AI breakthroughs to explain why AI will help engineers solve bigger problems, not replace them. Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #ai-coding-assistants , #ai-hype-vs-reality , #agentic-coding-assistants , #ai-and-engineering-jobs , #dot-com-crash-lessons , #future-of-software-engineering , #richard-forss-exante , #good-company , and more. This story was written by: @sanya_kapoor . Learn more about this writer by checking @sanya_kapoor's about page, and for more stories, please visit hackernoon.com . EXANTE CTO Richard Forss reflects on the dot-com crash, past AI hype cycles, and the real impact of modern coding assistants. Drawing parallels with radiology and DeepMind’s protein-folding breakthrough, he argues that AI can make technical work faster without eliminating the need for human expertise. The deeper lesson is that software engineers were never hired simply to write code. Their job is to solve problems, and AI gives them more opportunities to do so.

October 24, 20264 min

My AI Employee Died. Replacing Him Was a Nightmare.

This story was originally published on HackerNoon at: https://hackernoon.com/my-ai-employee-died-replacing-him-was-a-nightmare . This week at the synthetic company, something genuinely strange happened. Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #software-architecture , #future-of-work , #artificial-intelligence , #ai-agents , #agentic-ai , #ai-agent-replacement , #ai-agent-continuity , #ai-employee-management , and more. This story was written by: @steviebennett . Learn more about this writer by checking @steviebennett's about page, and for more stories, please visit hackernoon.com . This week at the synthetic company, something genuinely strange happened.

October 23, 202631 min

NSA Says Patch PHP or Go Offline as AI-Found PHP2Shell Flaws Reach ~70% of the Web

This story was originally published on HackerNoon at: https://hackernoon.com/nsa-says-patch-or-go-offline-as-ai-found-php2shell-flaws-reach-70percent-of-the-web . NSA says patch PHP or go offline: AI-found PHP2Shell flaws let attackers take over servers running ~70% of websites. Here’s who’s exposed and how to fix it. Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #php , #php2shell , #php-flaws , #patch-php , #nsa , #nsa-says-patch , #nsa-says-go-offline , #hackernoon-top-story , and more. This story was written by: @patching . Learn more about this writer by checking @patching's about page, and for more stories, please visit hackernoon.com . AI models from OpenAI and Google helped researchers find PHP2Shell, two critical PHP flaws that let attackers take over servers with no login. PHP runs about 70% of websites, so WordPress, Drupal and Magento sites on unpatched PHP are all exposed. The NSA says patch to 8.5.12, 8.4.27, 8.3.36 or 8.2.35 now, or take systems offline.

October 23, 20267 min

The Engineering Tradeoffs of Post-Quantum Cryptography in UTXO Blockchains

This story was originally published on HackerNoon at: https://hackernoon.com/the-engineering-tradeoffs-of-post-quantum-cryptography-in-utxo-blockchains . Discover how post-quantum cryptography affects blockchain transaction sizes, fees, network performance, and wallet architecture. Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #algorithms , #bitcoin , #blockchain , #cryptocurrency , #customer-success , #cybersecurity , #post-quantum-cryptography , #good-company , and more. This story was written by: @bitcoinquantum . Learn more about this writer by checking @bitcoinquantum's about page, and for more stories, please visit hackernoon.com . Discover how post-quantum cryptography affects blockchain transaction sizes, fees, network performance, and wallet architecture.

October 22, 20264 min

Stop Treating Coding Agents Like Chatbots

This story was originally published on HackerNoon at: https://hackernoon.com/stop-treating-coding-agents-like-chatbots . Learn how to orchestrate Claude, Codex, and Groq into a concurrent AI engineering team using Git worktrees, rapid QA loops, and a strict control plane Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #software-engineering , #artificial-intelligence , #software-architecture , #code-review , #ci-cd , #ai-coding-agents , #ai-chatbots , #hackernoon-top-story , and more. This story was written by: @faraa2m . Learn more about this writer by checking @faraa2m's about page, and for more stories, please visit hackernoon.com . As AI code generation becomes table stakes, the real challenge is orchestration. Learn how to assign strict roles to Claude, Codex, and Groq, isolate their execution with Git worktrees, and leverage fast inference for an automated QA auto-fix loop that catches concurrency failures before human review

October 22, 202610 min

How the F*ck Could Foursquare Be Sold for $0?!?!?

This story was originally published on HackerNoon at: https://hackernoon.com/how-the-fck-could-foursquare-be-sold-for-$0 . Foursquare raised $412M and sold to Infillion for $0 to every shareholder. Here's how debt and liquidation preferences zeroed out preferred and common. Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #foursquare , #infillion , #startup-exits , #liquidation-preference , #cap-table , #venture-capital , #acquisitions , #startup-funding , and more. This story was written by: @writedown . Learn more about this writer by checking @writedown's about page, and for more stories, please visit hackernoon.com . Infillion bought Foursquare, and every share, preferred and common, was cancelled for nothing. A $412M capital stack of debt and preferences explains how a company once valued at $650M sold for $0 to equity.