# Process

Published articles for Process.

This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles.

## How Engineering Principles Can Help You Scale

DevFeed: [How Engineering Principles Can Help You Scale](<https://devfeed.tech/articles/how-engineering-principles-can-help-you-scale-27372.md>)

Original publisher: [Read original article](<http://engineering.khanacademy.org/posts/eng-principles-help-scale.htm>)

Author: Khan Academy

Published: 2019-08-21T22:00:00Z

Content type: opinion

Language: en

Sources: [Khan Academy](<https://devfeed.tech/sources/khan-academy.md>)

Topics: [Development](<https://devfeed.tech/topics/development.md>), [Code](<https://devfeed.tech/topics/code.md>), [Processes](<https://devfeed.tech/topics/processes.md>)

Tags: [architecture](<https://devfeed.tech/tags/architecture.md>), [communication](<https://devfeed.tech/tags/communication.md>), [decision-making](<https://devfeed.tech/tags/decision-making.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [growth](<https://devfeed.tech/tags/growth.md>), [news](<https://devfeed.tech/tags/news.md>), [process](<https://devfeed.tech/tags/process.md>), [professional-development](<https://devfeed.tech/tags/professional-development.md>), [scale](<https://devfeed.tech/tags/scale.md>), [velocity](<https://devfeed.tech/tags/velocity.md>)

### AI overview

Marta Kosarchyn describes how Khan Academy's growing engineering team outgrew its initial principles. The article argues that evolving engineering principles can support scaling while preserving culture and engagement, and explains how the original approach eventually contributed to slower delivery, code clutter, and implicit architectural decisions.

### Source excerpt

By Marta Kosarchyn Our engineering team has grown a lot over the past couple of years, and we're ... Read more

## What do software architects at Khan Academy do?

DevFeed: [What do software architects at Khan Academy do?](<https://devfeed.tech/articles/what-do-software-architects-at-khan-academy-do-27366.md>)

Original publisher: [Read original article](<http://engineering.khanacademy.org/posts/architects-at-khan.htm>)

Author: Khan Academy

Published: 2018-05-14T22:00:00Z

Content type: opinion

Language: en

Sources: [Khan Academy](<https://devfeed.tech/sources/khan-academy.md>)

Topics: [Software](<https://devfeed.tech/topics/software.md>), [Development](<https://devfeed.tech/topics/development.md>), [coding](<https://devfeed.tech/topics/coding.md>)

Tags: [architecture](<https://devfeed.tech/tags/architecture.md>), [article](<https://devfeed.tech/tags/article.md>), [collaboration](<https://devfeed.tech/tags/collaboration.md>), [decision-making](<https://devfeed.tech/tags/decision-making.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [infrastructure](<https://devfeed.tech/tags/infrastructure.md>), [news](<https://devfeed.tech/tags/news.md>), [platforms](<https://devfeed.tech/tags/platforms.md>), [process](<https://devfeed.tech/tags/process.md>), [software](<https://devfeed.tech/tags/software.md>), [standards](<https://devfeed.tech/tags/standards.md>), [tools](<https://devfeed.tech/tags/tools.md>)

### AI overview

Kevin Dangoor explains how software architects at Khan Academy view their role: as product managers for the system in which software is built. The article emphasizes improving coding standards, tools, platforms, and processes by collaborating with engineers and engineering management, with DACI used to structure architecture-change decisions.

### Source excerpt

By Kevin Dangoor "Architect" is a new role in Khan Academy's engineering team this year, and my colleague, ... Read more

## Native Drag and Drop Meets Cross-Device Continuity

DevFeed: [Native Drag and Drop Meets Cross-Device Continuity](<https://devfeed.tech/articles/native-drag-and-drop-meets-cross-device-continuity-26579.md>)

Original publisher: [Read original article](<https://www.codenameone.com/blog/continuity-restoring-work/>)

Author: Shai Almog

Published: 2026-09-15T00:00:00Z

Content type: article

Language: en

Sources: [CodeName One](<https://devfeed.tech/sources/codename-one.md>)

Topics: [Java](<https://devfeed.tech/topics/java.md>), [Persistence](<https://devfeed.tech/topics/persistence.md>), [Framework](<https://devfeed.tech/topics/framework.md>), [payload](<https://devfeed.tech/topics/payload.md>), [LineageOS](<https://devfeed.tech/topics/lineageos.md>), [Processes](<https://devfeed.tech/topics/processes.md>), [browser](<https://devfeed.tech/topics/browser.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [apis](<https://devfeed.tech/tags/apis.md>), [browser](<https://devfeed.tech/tags/browser.md>), [java](<https://devfeed.tech/tags/java.md>), [native](<https://devfeed.tech/tags/native.md>), [payload](<https://devfeed.tech/tags/payload.md>), [persistence](<https://devfeed.tech/tags/persistence.md>), [process](<https://devfeed.tech/tags/process.md>), [screen](<https://devfeed.tech/tags/screen.md>), [state](<https://devfeed.tech/tags/state.md>)

### AI overview

Codename One adds cross-device continuity and native drag-and-drop through shared Java APIs. The article explains how to save reconstructible application state, restore it after account verification, and transfer it between devices and applications.

### Source excerpt

Drag files into another application and pick up a task on another device. Codename One adds native drag and drop and cross-device continuity through shared Java APIs.

## Coding Challenge #136 - Hyperfine

DevFeed: [Coding Challenge #136 - Hyperfine](<https://devfeed.tech/articles/coding-challenge-136-hyperfine-29211.md>)

Original publisher: [Read original article](<https://codingchallenges.substack.com/p/coding-challenge-136-hyperfine>)

Author: John Crickett

Published: 2026-09-12T08:03:11Z

Content type: tutorial

Language: en

Sources: [Coding Challenges](<https://devfeed.tech/sources/coding-challenges.md>)

Topics: [benchmarking](<https://devfeed.tech/topics/benchmarking.md>), [coding](<https://devfeed.tech/topics/coding.md>), [Command-line interface](<https://devfeed.tech/topics/cli.md>), [Processes](<https://devfeed.tech/topics/processes.md>)

Tags: [benchmarking](<https://devfeed.tech/tags/benchmarking.md>), [coding](<https://devfeed.tech/tags/coding.md>), [command-line](<https://devfeed.tech/tags/command-line.md>), [performance](<https://devfeed.tech/tags/performance.md>), [process](<https://devfeed.tech/tags/process.md>), [programming](<https://devfeed.tech/tags/programming.md>)

### AI overview

A coding challenge asks readers to build a command-line benchmarking tool modeled on hyperfine. The tool should run commands repeatedly, measure execution time and variation, compare commands, export results, and warn about unreliable measurements.

### Source excerpt

This challenge is to build your own benchmarking tool.

## How to Sandbox a Linux Process with Landlock, No Root Required

DevFeed: [How to Sandbox a Linux Process with Landlock, No Root Required](<https://devfeed.tech/articles/how-to-sandbox-a-linux-process-with-landlock-no-root-required-4341.md>)

Original publisher: [Read original article](<https://www.freecodecamp.org/news/how-to-sandbox-a-linux-process-with-landlock-no-root-required/>)

Author: Chris Roy

Published: 2026-09-11T21:42:27Z

Content type: tutorial

Language: en

Sources: [freeCodeCamp Programming Tutorials: Python, JavaScript, Git & More](<https://devfeed.tech/sources/freecodecamp-programming-tutorials-python-javascript-git-more.md>)

Topics: [Processes](<https://devfeed.tech/topics/processes.md>)

Tags: [c](<https://devfeed.tech/tags/c.md>), [gcc](<https://devfeed.tech/tags/gcc.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [kernel](<https://devfeed.tech/tags/kernel.md>), [linux](<https://devfeed.tech/tags/linux.md>), [process](<https://devfeed.tech/tags/process.md>), [sandbox](<https://devfeed.tech/tags/sandbox.md>), [security](<https://devfeed.tech/tags/security.md>), [selinux](<https://devfeed.tech/tags/selinux.md>), [ubuntu](<https://devfeed.tech/tags/ubuntu.md>)

### AI overview

A hands-on guide to sandboxing a Linux process with Landlock without root privileges. It explains the kernel feature, prerequisites, its self-restriction model, and the system calls used to define and apply filesystem-access rules.

### Source excerpt

Here's a program restricting itself, then trying to read two files: without landlock: read /etc/hostname ok read /tmp/secret.txt ok with landlock, /etc allowed: read

## Codename One Performance Work Covers Benchmarks, Runtime Overhead, and Native Features

DevFeed: [Codename One Performance Work Covers Benchmarks, Runtime Overhead, and Native Features](<https://devfeed.tech/articles/lies-damn-lies-and-benchmarks-19427.md>)

Original publisher: [Read original article](<https://www.codenameone.com/blog/performance-work-between-benchmarks/>)

Author: Shai Almog

Published: 2026-09-11T00:00:00Z

Content type: article

Language: en

Sources: [CodeName One](<https://devfeed.tech/sources/codename-one.md>)

Topics: [Programming](<https://devfeed.tech/topics/programming.md>), [Java](<https://devfeed.tech/topics/java.md>), [JavaScript](<https://devfeed.tech/topics/javascript.md>), [App](<https://devfeed.tech/topics/app.md>)

Tags: [benchmark](<https://devfeed.tech/tags/benchmark.md>), [benchmarks](<https://devfeed.tech/tags/benchmarks.md>), [java](<https://devfeed.tech/tags/java.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [performance](<https://devfeed.tech/tags/performance.md>), [process](<https://devfeed.tech/tags/process.md>)

### AI overview

The article describes Codename One performance work across maps, garbage collection, rendering, startup, memory use, and generated JavaScript. It also reports Java APIs for native drag and drop and cross-device continuity.

### Source excerpt

Codename One tackles GC, maps, startup, and JavaScript overhead, and adds native drag and drop plus cross-device continuity. Javadoc joins website search as we prepare for Android API 37.

## EF Protocol: The Hegotá EIP Opinion Post and Tier List

DevFeed: [EF Protocol: The Hegotá EIP Opinion Post and Tier List](<https://devfeed.tech/articles/ef-protocol-the-hegota-eip-opinion-post-and-tier-list-17235.md>)

Original publisher: [Read original article](<https://blog.ethereum.org/en/2026/09/07/protocol-hegota-eips>)

Author: Ethereum Foundation Protocol Cluster

Published: 2026-09-07T00:00:00Z

Content type: opinion

Language: en

Sources: [Ethereum Foundation Blog](<https://devfeed.tech/sources/ethereum-foundation-blog.md>)

Topics: [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [Testing](<https://devfeed.tech/topics/testing.md>), [client](<https://devfeed.tech/topics/client.md>)

Tags: [opinion](<https://devfeed.tech/tags/opinion.md>), [process](<https://devfeed.tech/tags/process.md>), [protocol](<https://devfeed.tech/tags/protocol.md>), [research-development](<https://devfeed.tech/tags/research-development.md>), [testing](<https://devfeed.tech/tags/testing.md>)

### AI overview

The EF Protocol cluster presents a unified tier list for 62 EIPs proposed for Hegotá. The assessment combines 397 tier grades from nine teams and individual contributors, with tiers defining delivery expectations and conditions for considering lower-tier proposals.

### Source excerpt

This is the EF Protocol cluster's tier list for Hegotá. We evaluated the 62 EIPs proposed for inclusion, each with a tier and a short note on the grade. It is the first time the cluster has published one unified view rather than per-team opinions. Geth, of course, being...

## Rootless Jailbreak Detection: Updating the Signals, Not the Claim

DevFeed: [Rootless Jailbreak Detection: Updating the Signals, Not the Claim](<https://devfeed.tech/articles/rootless-jailbreak-detection-updating-the-signals-not-the-claim-19501.md>)

Original publisher: [Read original article](<https://www.codenameone.com/blog/rootless-jailbreak-detection/>)

Author: Shai Almog

Published: 2026-09-01T00:00:00Z

Content type: release

Language: en

Sources: [CodeName One](<https://devfeed.tech/sources/codename-one.md>)

Topics: [Jailbreak](<https://devfeed.tech/topics/jailbreak.md>), [integrity](<https://devfeed.tech/topics/integrity.md>), [iOS](<https://devfeed.tech/topics/ios.md>), [Filesystems](<https://devfeed.tech/topics/filesystems.md>), [mount](<https://devfeed.tech/topics/mount.md>), [Processes](<https://devfeed.tech/topics/processes.md>)

Tags: [filesystem](<https://devfeed.tech/tags/filesystem.md>), [images](<https://devfeed.tech/tags/images.md>), [integrity](<https://devfeed.tech/tags/integrity.md>), [ios](<https://devfeed.tech/tags/ios.md>), [jailbreak](<https://devfeed.tech/tags/jailbreak.md>), [mount](<https://devfeed.tech/tags/mount.md>), [process](<https://devfeed.tech/tags/process.md>)

### AI overview

Codename One updated its iOS integrity checks to detect current rootless jailbreak layouts. The changes cross-check potentially hooked APIs, inspect mounts and loaded images, and rerun detection when the application returns to the foreground.

### Source excerpt

Codename One's iOS integrity checks now detect current rootless jailbreak layouts, cross-check hooked APIs, inspect mounts and loaded images, and rerun on foreground entry.

## Onboarding roulette and recurring AI "Aha" meetings: ideas for reducing user friction and sharing team learning

DevFeed: [Onboarding roulette and recurring AI "Aha" meetings: ideas for reducing user friction and sharing team learning](<https://devfeed.tech/articles/onbarding-roulette-aha-ai-meetings-and-weekly-readings-39822.md>)

Original publisher: [Read original article](<https://refactoring.fm/p/onbarding-roulette-aha-ai-meetings>)

Author: Luca Rossi

Published: 2026-08-31T07:03:19Z

Content type: opinion

Language: en

Sources: [Refactoring](<https://devfeed.tech/sources/refactoring.md>)

Topics: [meetings](<https://devfeed.tech/topics/meetings.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [Users](<https://devfeed.tech/topics/users.md>), [account](<https://devfeed.tech/topics/account.md>), [App](<https://devfeed.tech/topics/app.md>), [Mobile](<https://devfeed.tech/topics/mobile.md>), [Support](<https://devfeed.tech/topics/support.md>)

Tags: [account](<https://devfeed.tech/tags/account.md>), [ai](<https://devfeed.tech/tags/ai.md>), [app](<https://devfeed.tech/tags/app.md>), [meetings](<https://devfeed.tech/tags/meetings.md>), [mobile](<https://devfeed.tech/tags/mobile.md>), [process](<https://devfeed.tech/tags/process.md>), [support](<https://devfeed.tech/tags/support.md>), [users](<https://devfeed.tech/tags/users.md>)

### AI overview

This newsletter presents two team practices. Graphite randomly deletes an employee's account so they repeatedly experience product onboarding and uncover friction. It also describes recurring AI "Aha" meetings where everyone shares an AI-related win, failure, surprise, or odd discovery.

### Source excerpt

Monday Ideas -- Edition #223

## Hyperloop B: the coroutine engine behind Appwrite 2.0

DevFeed: [Hyperloop B: the coroutine engine behind Appwrite 2.0](<https://devfeed.tech/articles/hyperloop-b-the-coroutine-engine-behind-appwrite-2-0-16482.md>)

Original publisher: [Read original article](<https://appwrite.io/blog/post/hyperloop-b>)

Author: Luke B. Silver

Published: 2026-08-31T00:00:00Z

Content type: article

Language: en

Sources: [Appwrite Blog](<https://devfeed.tech/sources/appwrite-blog.md>)

Topics: [Appwrite](<https://devfeed.tech/topics/appwrite.md>), [Coroutines](<https://devfeed.tech/topics/coroutines.md>), [Concurrency](<https://devfeed.tech/topics/concurrency.md>), [PHP](<https://devfeed.tech/topics/php.md>), [Benchmark](<https://devfeed.tech/topics/benchmark.md>)

Tags: [architectures](<https://devfeed.tech/tags/architectures.md>), [backend](<https://devfeed.tech/tags/backend.md>), [benchmark](<https://devfeed.tech/tags/benchmark.md>), [concurrency](<https://devfeed.tech/tags/concurrency.md>), [coroutine](<https://devfeed.tech/tags/coroutine.md>), [coroutines](<https://devfeed.tech/tags/coroutines.md>), [cpu](<https://devfeed.tech/tags/cpu.md>), [memory](<https://devfeed.tech/tags/memory.md>), [php](<https://devfeed.tech/tags/php.md>), [platform](<https://devfeed.tech/tags/platform.md>), [process](<https://devfeed.tech/tags/process.md>), [redis](<https://devfeed.tech/tags/redis.md>)

### AI overview

The article explains Hyperloop B, a coroutine-based engine behind Appwrite 2.0. It describes how yielding during I/O lets one process serve many concurrent requests, reporting 7x higher requests per second and 6x lower memory use on an I/O-bound benchmark.

### Source excerpt

Hyperloop B is the Swoole coroutine engine behind Appwrite 2.0. Here is what it is, the concurrency problem it solves, and the 7x I/O throughput it buys.

## Symfony 8.1.6 released

DevFeed: [Symfony 8.1.6 released](<https://devfeed.tech/articles/symfony-8-1-6-released-8580.md>)

Original publisher: [Read original article](<https://symfony.com/blog/symfony-8-1-6-released>)

Author: Fabien Potencier

Published: 2026-08-30T21:44:04Z

Content type: release

Language: en

Sources: [Symfony Blog](<https://devfeed.tech/sources/symfony-blog.md>)

Topics: [Symfony](<https://devfeed.tech/topics/symfony.md>), [bug](<https://devfeed.tech/topics/bug.md>), [Security](<https://devfeed.tech/topics/security.md>), [Process](<https://devfeed.tech/topics/process.md>), [Routing (disambiguation)](<https://devfeed.tech/topics/routing.md>), [cURL](<https://devfeed.tech/topics/curl.md>), [PHP](<https://devfeed.tech/topics/php.md>)

Tags: [bug](<https://devfeed.tech/tags/bug.md>), [php](<https://devfeed.tech/tags/php.md>), [process](<https://devfeed.tech/tags/process.md>), [release](<https://devfeed.tech/tags/release.md>), [routing](<https://devfeed.tech/tags/routing.md>), [security](<https://devfeed.tech/tags/security.md>), [symfony](<https://devfeed.tech/tags/symfony.md>)

### AI overview

Symfony 8.1.6 is released with fixes across HttpClient, HttpFoundation, Security, Process, Routing, and other components. The update addresses issues including decompression bombs, malformed security parameters, subprocess environment handling, URL matching, and cookie validation.

### Source excerpt

Symfony 8.1.6 has just been released. Read the Symfony upgrade guide to learn more about upgrading Symfony and use the SymfonyInsight upgrade reports to detect the code you will need to change in your project. Tip...

## Symfony 7.4.18 released

DevFeed: [Symfony 7.4.18 released](<https://devfeed.tech/articles/symfony-7-4-18-released-8579.md>)

Original publisher: [Read original article](<https://symfony.com/blog/symfony-7-4-18-released>)

Author: Fabien Potencier

Published: 2026-08-30T21:39:49Z

Content type: release

Language: en

Sources: [Symfony Blog](<https://devfeed.tech/sources/symfony-blog.md>)

Topics: [Symfony](<https://devfeed.tech/topics/symfony.md>), [bug](<https://devfeed.tech/topics/bug.md>), [Security](<https://devfeed.tech/topics/security.md>), [Processes](<https://devfeed.tech/topics/processes.md>), [Routing (disambiguation)](<https://devfeed.tech/topics/routing.md>)

Tags: [bug](<https://devfeed.tech/tags/bug.md>), [process](<https://devfeed.tech/tags/process.md>), [release](<https://devfeed.tech/tags/release.md>), [routing](<https://devfeed.tech/tags/routing.md>), [security](<https://devfeed.tech/tags/security.md>), [symfony](<https://devfeed.tech/tags/symfony.md>)

### AI overview

Symfony 7.4.18 has been released with fixes across components including HttpClient, Security, Process, Routing, HttpFoundation, and Filesystem.

### Source excerpt

Symfony 7.4.18 has just been released. Read the Symfony upgrade guide to learn more about upgrading Symfony and use the SymfonyInsight upgrade reports to detect the code you will need to change in your project. Tip...

## Winner: Identifying a Bandgap Voltage Reference Circuit in a Chip Micrograph

DevFeed: [Winner: Identifying a Bandgap Voltage Reference Circuit in a Chip Micrograph](<https://devfeed.tech/articles/winner-name-that-ware-july-2026-36620.md>)

Original publisher: [Read original article](<https://www.bunniestudios.com/blog/2026/winner-name-that-ware-july-2026/>)

Author: bunnie

Published: 2026-08-30T06:27:57Z

Content type: article

Language: en

Sources: [bunnie's blog](<https://devfeed.tech/sources/bunnie-s-blog.md>)

Topics: [circuit](<https://devfeed.tech/topics/circuit.md>), [standard](<https://devfeed.tech/topics/standard.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [baochip](<https://devfeed.tech/tags/baochip.md>), [circuit](<https://devfeed.tech/tags/circuit.md>), [name-that-ware](<https://devfeed.tech/tags/name-that-ware.md>), [process](<https://devfeed.tech/tags/process.md>)

### AI overview

The article identifies the featured chip structure as a bandgap voltage reference built around paired NPN transistors. It explains how the circuit maintains a near-constant voltage and why dummy transistors surround the active devices.

### Source excerpt

The structure in question for last month's ware are a pair of NPN transistors that form the core of a bandgap voltage reference circuit. As its name implies, a bandgap voltage reference generates a near-constant voltage for use inside chips. The voltage is intended to be fairly constant over process variations, temperature variations, and power [...]

## Electing new Project Directors 2026

DevFeed: [Electing new Project Directors 2026](<https://devfeed.tech/articles/electing-new-project-directors-2026-15105.md>)

Original publisher: [Read original article](<https://blog.rust-lang.org/inside-rust/2026/08/28/electing-new-project-directors-2026/>)

Author: Manish Goregaokar

Published: 2026-08-28T00:00:00Z

Content type: article

Language: en

Sources: [Inside Rust Blog](<https://devfeed.tech/sources/inside-rust-blog.md>)

Topics: [Rust](<https://devfeed.tech/topics/rust.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [process](<https://devfeed.tech/tags/process.md>), [project](<https://devfeed.tech/tags/project.md>), [rust](<https://devfeed.tech/tags/rust.md>)

### AI overview

The Rust Project has launched its 2026 process to elect two Project Directors to the Rust Foundation Board. Project members are invited to nominate candidates by September 21, with the election following candidate gathering.

### Source excerpt

Today we are launching the process to elect two Project Directors to the Rust Foundation Board of Directors. This is the fourth round of slots, following from last year's election. We will briefly explain the goals and procedures here, but this is mostly copy-pasted from last year's post and the official process documentation. We ask all Project members to begin working with their Leadership Council representative to nominate potential Project Directors. See the candidate gathering section for more details. Nominations are due by September 21. What are Project Directors? The Rust Foundation Board of Directors has five seats reserved for Project Directors. These Project Directors serve as representatives of the Rust Project itself on the Board. Like all directors on the Foundation board, the Project Directors are elected by the entity they represent, which in the case of the Rust Project means they are elected by the Rust Leadership Council. Project Directors serve for a term of two years and will have staggered terms. This year we will appoint two directors and next year we will appoint three directors. See the role description document for more details about what is involved in being a Project Director. The current Project Directors are Carol Nichols, David Wood, Jack Huey, Niko Matsakis, and Ryan Levick. This year, Carol Nichols and Ryan Levick's seats are up for reelection. We want to make sure the Project Directors can effectively represent the Project as a whole, so we are soliciting input from everyone on the team. The elections process will go through two phases: 1) candidate gathering and 2) election. Read on for more detail about how these work. Candidate gathering The first phase is beginning right now. In this phase, we are inviting the members of all of the top level Rust teams and their subteams to nominate people who would make good Project Directors. The goal is to bubble these up to the Council through each of the top-level teams. You should be heari

## The lingering legacy of 'reserved' ports

DevFeed: [The lingering legacy of 'reserved' ports](<https://devfeed.tech/articles/the-lingering-legacy-of-reserved-ports-10853.md>)

Original publisher: [Read original article](<https://blog.apnic.net/2026/08/28/the-lingering-legacy-of-reserved-ports/>)

Author: George Michaelson

Published: 2026-08-27T23:29:48Z

Content type: article

Language: en

Sources: [APNIC Blog](<https://devfeed.tech/sources/apnic-blog.md>)

Topics: [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [Network](<https://devfeed.tech/topics/network.md>), [Process](<https://devfeed.tech/topics/process.md>), [Operating system](<https://devfeed.tech/topics/operating-system.md>), [Unix](<https://devfeed.tech/topics/unix.md>), [ssh](<https://devfeed.tech/topics/ssh.md>), [Firewall](<https://devfeed.tech/topics/firewall.md>), [Internet](<https://devfeed.tech/topics/internet.md>)

Tags: [dns](<https://devfeed.tech/tags/dns.md>), [firewall](<https://devfeed.tech/tags/firewall.md>), [history](<https://devfeed.tech/tags/history.md>), [internet](<https://devfeed.tech/tags/internet.md>), [network](<https://devfeed.tech/tags/network.md>), [ntp](<https://devfeed.tech/tags/ntp.md>), [opinion](<https://devfeed.tech/tags/opinion.md>), [process](<https://devfeed.tech/tags/process.md>), [processes](<https://devfeed.tech/tags/processes.md>), [ssh](<https://devfeed.tech/tags/ssh.md>), [systems](<https://devfeed.tech/tags/systems.md>), [tech-matters](<https://devfeed.tech/tags/tech-matters.md>)

### AI overview

An exploration of why reserved TCP and UDP ports persist, tracing conventions such as ports 22, 53, 80, and 443 to early Internet services on multi-user systems. It explains the relationship between ports, protocol-specific daemons, operating-system administration, and modern firewall and service-discovery practices.

### Source excerpt

Modern service discovery mechanisms increasingly allow services to run on arbitrary ports, yet DNS may remain the one protocol that cannot fully escape its dependency on the long-established convention of port 53.

## How to Live Stream the Raspberry Pi Camera (2 Easy Ways)

DevFeed: [How to Live Stream the Raspberry Pi Camera (2 Easy Ways)](<https://devfeed.tech/articles/how-to-live-stream-the-raspberry-pi-camera-2-easy-ways-10796.md>)

Original publisher: [Read original article](<https://raspberrytips.com/how-to-live-stream-pi-camera/>)

Author: Dhairya Parikh

Published: 2026-08-27T04:21:36Z

Content type: tutorial

Language: en

Sources: [RaspberryTips](<https://devfeed.tech/sources/raspberrytips.md>)

Topics: [Streaming](<https://devfeed.tech/topics/streaming.md>), [webcam](<https://devfeed.tech/topics/webcam.md>), [real-time](<https://devfeed.tech/topics/real-time.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [Hardware](<https://devfeed.tech/topics/hardware.md>), [Web](<https://devfeed.tech/topics/web.md>), [Linux](<https://devfeed.tech/topics/linux.md>), [Terminal](<https://devfeed.tech/topics/terminal.md>), [Software](<https://devfeed.tech/topics/software.md>)

Tags: [guide](<https://devfeed.tech/tags/guide.md>), [hardware](<https://devfeed.tech/tags/hardware.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [how-to-tutorials](<https://devfeed.tech/tags/how-to-tutorials.md>), [linux](<https://devfeed.tech/tags/linux.md>), [live-stream](<https://devfeed.tech/tags/live-stream.md>), [process](<https://devfeed.tech/tags/process.md>), [raspberry-pi](<https://devfeed.tech/tags/raspberry-pi.md>), [raspberry-pi-os](<https://devfeed.tech/tags/raspberry-pi-os.md>), [real-time](<https://devfeed.tech/tags/real-time.md>), [software](<https://devfeed.tech/tags/software.md>), [streaming](<https://devfeed.tech/tags/streaming.md>), [video](<https://devfeed.tech/tags/video.md>), [web](<https://devfeed.tech/tags/web.md>)

### AI overview

A tutorial explaining two ways to live-stream video from a Raspberry Pi Camera to another device: using an RTSP stream or a web page on the local network. It covers the required Raspberry Pi hardware, camera module, SD card, Raspberry Pi OS, and the initial terminal command for starting an RTSP stream.

### Source excerpt

I've used Raspberry Pi cameras in many projects over the years, and live streaming is one of those features that sounds more complicated than it really is. Once the camera is working, there are a few simple ways to stream its feed to another device. Raspberry Pi Camera video can be live-streamed in two ways:...

## Restore LLM Inference Capacity in Seconds with Shadow Engine Recovery in NVIDIA Dynamo

DevFeed: [Restore LLM Inference Capacity in Seconds with Shadow Engine Recovery in NVIDIA Dynamo](<https://devfeed.tech/articles/restore-llm-inference-capacity-in-seconds-with-shadow-engine-recovery-in-nvidia-dynamo-6928.md>)

Original publisher: [Read original article](<https://developer.nvidia.com/blog/restore-llm-inference-capacity-in-seconds-with-shadow-engine-recovery-in-nvidia-dynamo/>)

Author: Michelle Horton

Published: 2026-08-25T20:57:54Z

Content type: article

Language: en

Sources: [NVIDIA Developer](<https://devfeed.tech/sources/nvidia-developer.md>), [NVIDIA Technical Blog](<https://devfeed.tech/sources/nvidia-technical-blog.md>)

Topics: [Large Language Model](<https://devfeed.tech/topics/llm.md>), [Inference](<https://devfeed.tech/topics/inference.md>), [model-deployment](<https://devfeed.tech/topics/model-deployment.md>), [Nvidia](<https://devfeed.tech/topics/nvidia.md>), [Optimization](<https://devfeed.tech/topics/optimization.md>), [CUDA](<https://devfeed.tech/topics/cuda.md>), [Processes](<https://devfeed.tech/topics/processes.md>), [GPU](<https://devfeed.tech/topics/gpu.md>), [NCCL](<https://devfeed.tech/topics/nccl.md>), [sglang](<https://devfeed.tech/topics/sglang.md>)

Tags: [agentic-ai-generative-ai](<https://devfeed.tech/tags/agentic-ai-generative-ai.md>), [cuda](<https://devfeed.tech/tags/cuda.md>), [cuda-x](<https://devfeed.tech/tags/cuda-x.md>), [data-science](<https://devfeed.tech/tags/data-science.md>), [deployment](<https://devfeed.tech/tags/deployment.md>), [developer-tools-techniques](<https://devfeed.tech/tags/developer-tools-techniques.md>), [gpu](<https://devfeed.tech/tags/gpu.md>), [inference](<https://devfeed.tech/tags/inference.md>), [llm](<https://devfeed.tech/tags/llm.md>), [models](<https://devfeed.tech/tags/models.md>), [nccl](<https://devfeed.tech/tags/nccl.md>), [nvidia](<https://devfeed.tech/tags/nvidia.md>), [optimization](<https://devfeed.tech/tags/optimization.md>), [process](<https://devfeed.tech/tags/process.md>)

### AI overview

This article explains NVIDIA Dynamo's shadow engine recovery for LLM inference. A fully initialized shadow engine shares weights with the active engine and takes over after a process failure, reducing recovery from a 283-second cold restart to 7.3 seconds in the described two-worker deployment.

### Source excerpt

When an LLM engine process fails, the standard recovery path involves a cold restart. This requires loading weights into HBM from storage, compiling kernels,...

## AAOS SDV - Secure by Design

DevFeed: [AAOS SDV - Secure by Design](<https://devfeed.tech/articles/aaos-sdv-secure-by-design-22687.md>)

Original publisher: [Read original article](<http://android-developers.googleblog.com/2026/08/aaos-sdv-secure-by-design.html>)

Author: Android Developers (noreply@blogger.com)

Published: 2026-08-24T16:00:31Z

Content type: article

Language: en

Sources: [Android Developers Blog](<https://devfeed.tech/sources/android-developers-blog-3.md>)

Topics: [Android](<https://devfeed.tech/topics/android.md>), [Security](<https://devfeed.tech/topics/security.md>), [virtualization](<https://devfeed.tech/topics/virtualization.md>), [virtual machines](<https://devfeed.tech/topics/virtual-machines.md>), [SELinux](<https://devfeed.tech/topics/selinux.md>), [POSIX](<https://devfeed.tech/topics/posix.md>), [Processes](<https://devfeed.tech/topics/processes.md>), [Google](<https://devfeed.tech/topics/google.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [android-security](<https://devfeed.tech/tags/android-security.md>), [article](<https://devfeed.tech/tags/article.md>), [google](<https://devfeed.tech/tags/google.md>), [posix](<https://devfeed.tech/tags/posix.md>), [process](<https://devfeed.tech/tags/process.md>), [security](<https://devfeed.tech/tags/security.md>), [selinux](<https://devfeed.tech/tags/selinux.md>), [virtual-machines](<https://devfeed.tech/tags/virtual-machines.md>), [virtualization](<https://devfeed.tech/tags/virtualization.md>)

### AI overview

This article explains the security design of Android Automotive Operating System for Software Defined Vehicle (AAOS SDV). It describes virtualization for domain isolation, UID-based application and service sandboxing, POSIX capabilities, SELinux deny-by-default enforcement, and Android's vulnerability management and disclosure processes.

### Source excerpt

Posted by Markus Vill, Software Engineer, Sean Keys, Security Engineer, and Istvan Nador, Software Engineer, Android Auto At Google, we believe our products should be secure by design, which is why we built the Android Automotive Operating System for Software Defined Vehicle (AAOS SDV) on existing, market-proven platforms, leveraging virtualization technologies like Cuttlefish. While our release announcements focused on the features, this blog post outlines some of the security concepts. Foundation: Domain IsolationVirtualization to isolate co-hosted instances The current trend of consolidating Electronic Control Units (ECUs) into a single chip reduces isolation by running multiple domains side-by-side. While AAOS SDV instances provide internal isolation mechanisms, it is often preferable to run logical domains independently. For instance, a cluster and an infotainment system have distinct requirements. We use virtual machines to run multiple instances in parallel, ensuring that sharing remains explicit and isolation is the default behavior. Inherited Android Security AAOS SDV evolved from Microdroid, a minimalistic Android version optimized for privacy virtual machines (pVM). This lineage provides Android platform engineers with established security features they already know. Process Isolation & Deny by Default AAOS SDV follows Android's User ID (UID)-based isolation model to set up a sandbox for each application. Each service runs in a dedicated process with a unique UID to manage access rights, data directories, and other restrictions. We employ Portable Operating System Interface (POSIX) capabilities to strictly limit operations and pair this with Security-Enhanced Linux (SELinux) to enforce a "deny-by-default" posture. This approach restricts each service to the absolute minimum required, meaning missing configurations block access rather than creating an over-permissive system. We apply this same strategy to our communication permission system, as explained l

## AAOS SDV - Secure by Design

DevFeed: [AAOS SDV - Secure by Design](<https://devfeed.tech/articles/aaos-sdv-secure-by-design-4230.md>)

Original publisher: [Read original article](<https://android-developers.googleblog.com/2026/08/aaos-sdv-secure-by-design.html>)

Author: Android Developers (noreply@blogger.com)

Published: 2026-08-24T16:00:31Z

Content type: article

Language: en

Sources: [Android Developers Blog](<https://devfeed.tech/sources/android-developers-blog.md>), [Android Developers Blog](<https://devfeed.tech/sources/android-developers-blog-2.md>)

Topics: [Android](<https://devfeed.tech/topics/android.md>), [Security](<https://devfeed.tech/topics/security.md>), [SELinux](<https://devfeed.tech/topics/selinux.md>), [virtualization](<https://devfeed.tech/topics/virtualization.md>), [vulnerability management](<https://devfeed.tech/topics/vulnerability-management.md>), [Process](<https://devfeed.tech/topics/process.md>), [Resilience](<https://devfeed.tech/topics/resilience.md>), [Google](<https://devfeed.tech/topics/google.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [android-security](<https://devfeed.tech/tags/android-security.md>), [article](<https://devfeed.tech/tags/article.md>), [automotive](<https://devfeed.tech/tags/automotive.md>), [blog](<https://devfeed.tech/tags/blog.md>), [deep-dive](<https://devfeed.tech/tags/deep-dive.md>), [google](<https://devfeed.tech/tags/google.md>), [process](<https://devfeed.tech/tags/process.md>), [resilience](<https://devfeed.tech/tags/resilience.md>), [security](<https://devfeed.tech/tags/security.md>), [selinux](<https://devfeed.tech/tags/selinux.md>), [virtualization](<https://devfeed.tech/tags/virtualization.md>), [vulnerabilities](<https://devfeed.tech/tags/vulnerabilities.md>), [vulnerability-management](<https://devfeed.tech/tags/vulnerability-management.md>)

### AI overview

AAOS SDV is presented as a secure-by-design platform for software-defined vehicles. The article explains how virtualization isolates co-hosted domains, while Android UID-based process sandboxes, POSIX capabilities, and SELinux enforce least privilege and deny-by-default access. It also describes vulnerability response, penetration testing, security audits, and architectural reviews.

### Source excerpt

Posted by Markus Vill, Software Engineer, Sean Keys, Security Engineer, and Istvan Nador, Software Engineer, Android Auto At Google, we believe our products should be secure by design, which is why we built the Android Automotive Operating System for Software Defined Vehicle (AAOS SDV) on existing, market-proven platforms, leveraging virtualization technologies like Cuttlefish. While our release announcements focused on the features, this blog post outlines some of the security concepts. Foundation: Domain IsolationVirtualization to isolate co-hosted instances The current trend of consolidating Electronic Control Units (ECUs) into a single chip reduces isolation by running multiple domains side-by-side. While AAOS SDV instances provide internal isolation mechanisms, it is often preferable to run logical domains independently. For instance, a cluster and an infotainment system have distinct requirements. We use virtual machines to run multiple instances in parallel, ensuring that sharing remains explicit and isolation is the default behavior. Inherited Android Security AAOS SDV evolved from Microdroid, a minimalistic Android version optimized for privacy virtual machines (pVM). This lineage provides Android platform engineers with established security features they already know. Process Isolation & Deny by Default AAOS SDV follows Android's User ID (UID)-based isolation model to set up a sandbox for each application. Each service runs in a dedicated process with a unique UID to manage access rights, data directories, and other restrictions. We employ Portable Operating System Interface (POSIX) capabilities to strictly limit operations and pair this with Security-Enhanced Linux (SELinux) to enforce a "deny-by-default" posture. This approach restricts each service to the absolute minimum required, meaning missing configurations block access rather than creating an over-permissive system. We apply this same strategy to our communication permission system, as explained l

## Increasing AI-Assisted Coding Throughput Without Losing Technical Judgment

DevFeed: [Increasing AI-Assisted Coding Throughput Without Losing Technical Judgment](<https://devfeed.tech/articles/don-t-become-a-proxy-between-ai-and-code-28463.md>)

Original publisher: [Read original article](<https://strategizeyourcareer.com/p/ai-assisted-software-engineering-skills>)

Author: Fran Soto

Published: 2026-08-23T04:01:03Z

Content type: opinion

Language: en

Sources: [Strategize Your Career](<https://devfeed.tech/sources/strategize-your-career.md>)

Topics: [AI-assisted coding](<https://devfeed.tech/topics/ai-assisted-coding.md>), [coding](<https://devfeed.tech/topics/coding.md>), [AI Agent](<https://devfeed.tech/topics/ai-agent.md>), [Software](<https://devfeed.tech/topics/software.md>)

Tags: [agent](<https://devfeed.tech/tags/agent.md>), [ai](<https://devfeed.tech/tags/ai.md>), [ai-assisted-coding](<https://devfeed.tech/tags/ai-assisted-coding.md>), [architecture](<https://devfeed.tech/tags/architecture.md>), [coding](<https://devfeed.tech/tags/coding.md>), [process](<https://devfeed.tech/tags/process.md>), [software](<https://devfeed.tech/tags/software.md>), [visibility](<https://devfeed.tech/tags/visibility.md>)

### AI overview

This article examines how AI-assisted software engineering can increase coding throughput while reducing an engineer's visibility into planning, implementation, testing, deployment, and review. It argues that engineers must maintain technical judgment by defining goals and architectural constraints while also understanding and optimizing the processes used by AI agents.

### Source excerpt

A zoom-in, zoom-out system for increasing AI-assisted coding throughput without losing the technical judgment needed to improve it

## What else runs on your Postgres server, and how do we stop it from taking the database down?

DevFeed: [What else runs on your Postgres server, and how do we stop it from taking the database down?](<https://devfeed.tech/articles/what-else-runs-on-your-postgres-server-and-how-do-we-stop-it-from-taking-the-database-down-5530.md>)

Original publisher: [Read original article](<https://clickhouse.com/blog/protect-postgres-from-supporting-processes>)

Author: Kaushik Iska

Published: 2026-08-21T14:11:30Z

Content type: article

Language: en

Sources: [ClickHouse Blog](<https://devfeed.tech/sources/clickhouse-blog.md>)

Topics: [Database](<https://devfeed.tech/topics/database.md>), [Availability](<https://devfeed.tech/topics/availability.md>), [Processes](<https://devfeed.tech/topics/processes.md>), [Server](<https://devfeed.tech/topics/server.md>), [Monitoring](<https://devfeed.tech/topics/monitoring.md>), [Go Language](<https://devfeed.tech/topics/go-language.md>), [systemd](<https://devfeed.tech/topics/systemd.md>)

Tags: [availability](<https://devfeed.tech/tags/availability.md>), [backup](<https://devfeed.tech/tags/backup.md>), [cpu](<https://devfeed.tech/tags/cpu.md>), [database](<https://devfeed.tech/tags/database.md>), [go](<https://devfeed.tech/tags/go.md>), [logging](<https://devfeed.tech/tags/logging.md>), [memory](<https://devfeed.tech/tags/memory.md>), [metrics](<https://devfeed.tech/tags/metrics.md>), [monitoring](<https://devfeed.tech/tags/monitoring.md>), [postgres](<https://devfeed.tech/tags/postgres.md>), [process](<https://devfeed.tech/tags/process.md>), [processes](<https://devfeed.tech/tags/processes.md>), [prometheus](<https://devfeed.tech/tags/prometheus.md>), [server](<https://devfeed.tech/tags/server.md>), [systemd](<https://devfeed.tech/tags/systemd.md>)

### AI overview

ClickHouse Managed Postgres isolates supporting services with runtime budgets and cgroup v2 limits so leaks, CPU saturation, and memory pressure do not compromise database availability.

### Source excerpt

ClickHouse Managed Postgres uses runtime budgets, cgroup limits, and disk-full session exemptions to keep supporting services from compromising database availability.

## Preparing your app for broader memory limits

DevFeed: [Preparing your app for broader memory limits](<https://devfeed.tech/articles/preparing-your-app-for-broader-memory-limits-4232.md>)

Original publisher: [Read original article](<https://android-developers.googleblog.com/2026/08/app-broader-memory-limits.html>)

Author: Android Developers (noreply@blogger.com)

Published: 2026-08-19T19:00:00Z

Content type: article

Language: en

Sources: [Android Developers Blog](<https://devfeed.tech/sources/android-developers-blog.md>), [Android Developers Blog](<https://devfeed.tech/sources/android-developers-blog-2.md>)

Topics: [App](<https://devfeed.tech/topics/app.md>), [Memory Leaks](<https://devfeed.tech/topics/memory-leaks.md>), [Processes](<https://devfeed.tech/topics/processes.md>), [cpu](<https://devfeed.tech/topics/cpu.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [app](<https://devfeed.tech/tags/app.md>), [cpu](<https://devfeed.tech/tags/cpu.md>), [memory](<https://devfeed.tech/tags/memory.md>), [memory-leaks](<https://devfeed.tech/tags/memory-leaks.md>), [metrics](<https://devfeed.tech/tags/metrics.md>), [monitoring](<https://devfeed.tech/tags/monitoring.md>), [optimization](<https://devfeed.tech/tags/optimization.md>), [os](<https://devfeed.tech/tags/os.md>), [performance](<https://devfeed.tech/tags/performance.md>), [process](<https://devfeed.tech/tags/process.md>), [user-experience](<https://devfeed.tech/tags/user-experience.md>)

### AI overview

Android 17 broadens per-app memory limits across devices. The article explains how exceeding a memory budget can cause zRAM swapping, slowdowns, and process termination, and recommends measuring and reducing an app's memory footprint.

### Source excerpt

Posted by Blair Harmon, Director of Product Management, Android Platform A great user experience is central to Android's mission, and delivering on that promise requires keeping devices fast, responsive, and reliable. This is why memory optimization is more critical than ever. Across the ecosystem, new devices are maintaining or even decreasing their physical memory capacity in response to memory price increases, yet users continue to expect the same seamless, high-performance app experience. In Android 17, we introduced per-app memory limits, starting with Pixel devices, to help protect the overall user experience from applications using excess memory and causing system-wide slowdowns. Over the coming year, an increasing number of manufacturers will leverage the Android per-app memory limits across their portfolio of device RAM configurations from 4GB to 16GB+ devices. If your app exceeds these limits, it will be slowed down and may be terminated. Optimizing your app's memory footprint is essential to preventing OS throttling and maintaining a seamless user experience. In this post, we'll explore how these limits work under the hood, how to measure your memory footprint using new Android vitals metrics, and actionable steps to optimize your app or game. Understanding Memory Limits When your app exceeds its memory budget, Android takes progressive action to protect device responsiveness: zRAM Swapping: If your app reaches its allocated limit, the system forces your app's pages into zRAM (compressed RAM). While zRAM prevents immediate eviction, compressing and decompressing pages adds CPU overhead, which can result in noticeable UI jank and experience slowdowns. Process Termination: If your app continues to increase its memory usage beyond the zRAM threshold, it will be terminated by the system. To determine if your app session was impacted by these constraints in the field, you can call getDescription() within ApplicationExitInfo. If the system applied a limit, the

## How we knew COVID was over (and what our models had to unlearn)

DevFeed: [How we knew COVID was over (and what our models had to unlearn)](<https://devfeed.tech/articles/how-we-knew-covid-was-over-and-what-our-models-had-to-unlearn-1218.md>)

Original publisher: [Read original article](<https://medium.com/airbnb-engineering/how-we-knew-covid-was-over-and-what-our-models-had-to-unlearn-c606b9bdb0ab?source=rss----53c7c27702d5---4>)

Author: Harrison Katz

Published: 2026-08-19T17:01:03Z

Content type: article

Language: en

Sources: [The Airbnb Tech Blog - Medium](<https://devfeed.tech/sources/the-airbnb-tech-blog-medium.md>)

Topics: [Data Science](<https://devfeed.tech/topics/data-science.md>), [data](<https://devfeed.tech/topics/data.md>), [datasets](<https://devfeed.tech/topics/datasets.md>), [Process](<https://devfeed.tech/topics/process.md>)

Tags: [company](<https://devfeed.tech/tags/company.md>), [data](<https://devfeed.tech/tags/data.md>), [data-modeling](<https://devfeed.tech/tags/data-modeling.md>), [data-science](<https://devfeed.tech/tags/data-science.md>), [machine-learning](<https://devfeed.tech/tags/machine-learning.md>), [models](<https://devfeed.tech/tags/models.md>), [process](<https://devfeed.tech/tags/process.md>), [technology](<https://devfeed.tech/tags/technology.md>)

### AI overview

An Airbnb forecasting data science team explains how it responds when production forecasts drift, distinguishing between refitting a model with newer data, respecifying its structure, and holding it unchanged. The article emphasizes diagnosing the source of persistent bias and managing the risks of model updates that influence company decisions.

### Source excerpt

When we retrain, when we rebuild, and when we leave a model alone. By: Harrison Katz A forecast that carries weight The Forecasting Data Science team at Airbnb produces many of the forecasts the rest of the company plans around: demand, bookings, cancellations, and a range of finer cuts by market and segment, refreshed continuously across thousands of markets. The targets differ, and the models differ, but they have one thing in common: Other teams build on top of them. This means a forecast that is casually wrong is not a clean miss, as it might be in an academic setting. That's because a small bias does not stay small once a lot of decisions are riding on it. So when one of those forecasts starts to drift, what to do about it is not really a methods question. It is a risk question, and an easy one to get wrong, which we have from time to time. One of these forecasts had been missing, compared to what actually happened after the forecast was released, in the same direction for a couple of quarters. This bias persisted after several routine refreshes. The usual solution would be to fully retrain the model: pull in the recent data, refit the model again, and ship. But we wanted to understand the source of the bias, rather than simply hoping an update would eliminate it. If you're interested in other posts on this topic, you can learn more about how COVID impacted Airbnb's financial models or how we dealt with disruption to our models during the pandemic. This post is about the discipline that came out of both: how we now decide whether a struggling forecast needs new data, a new model, or no changes at all. One word, three decisions The easy mistake is treating the choice to "retrain" a model as a single action. It is three separate actions -- refitting, respecifying, or holding -- and none of them is particularly similar to the others. Refitting is the cheaper option. Same model, same structure, same features, updated with newer data. This is what most people mean by

## \[CVE\] \[URGENT\] Squid v19.2.6 and Tentacle v20.2.4 released

DevFeed: [\[CVE\] \[URGENT\] Squid v19.2.6 and Tentacle v20.2.4 released](<https://devfeed.tech/articles/cve-urgent-squid-v19-2-6-and-tentacle-v20-2-4-released-12345.md>)

Original publisher: [Read original article](<https://ceph.io/en/news/blog/2026/v20-2-4-v19-2-6-combo-released/>)

Author: Patrick Donnelly

Published: 2026-08-19T00:00:00Z

Content type: release

Language: en

Sources: [Ceph Blog](<https://devfeed.tech/sources/ceph-blog.md>)

Topics: [releases](<https://devfeed.tech/topics/releases.md>), [Authentication](<https://devfeed.tech/topics/authentication.md>), [Linux](<https://devfeed.tech/topics/linux.md>), [client](<https://devfeed.tech/topics/client.md>), [monitor](<https://devfeed.tech/topics/monitor.md>)

Tags: [authentication](<https://devfeed.tech/tags/authentication.md>), [blog-post](<https://devfeed.tech/tags/blog-post.md>), [cve](<https://devfeed.tech/tags/cve.md>), [cves](<https://devfeed.tech/tags/cves.md>), [en-article](<https://devfeed.tech/tags/en-article.md>), [en-blog-post](<https://devfeed.tech/tags/en-blog-post.md>), [errors](<https://devfeed.tech/tags/errors.md>), [linux](<https://devfeed.tech/tags/linux.md>), [process](<https://devfeed.tech/tags/process.md>), [release](<https://devfeed.tech/tags/release.md>), [releases](<https://devfeed.tech/tags/releases.md>), [rest](<https://devfeed.tech/tags/rest.md>), [rgw](<https://devfeed.tech/tags/rgw.md>), [squid](<https://devfeed.tech/tags/squid.md>), [tentacle](<https://devfeed.tech/tags/tentacle.md>), [upgrade](<https://devfeed.tech/tags/upgrade.md>)

### AI overview

The Ceph project released Tentacle 20.2.4 and Squid 19.2.6 as hotfixes addressing four CVEs. The article urgently recommends upgrading and explains changes to CephX key types, daemon-key rotation, authentication controls, recovery procedures, and multisite RGW request signing.

### Source excerpt

The Ceph project has released Tentacle 20.2.4 and Squid 19.2.6 hotfixes for four CVEs across several components. This is the sixth backport release in the Squid series. This is the fourth backport release in the Tentacle series. We strongly recommend that all Ceph operators upgrade to one of these releases as soon as possible. Release Date ¶ August 19, 2026 Critical Upgrade Steps ¶ The fix for CVE-2025-30156 introduces a new CephX key type, aes256k. This is the first time Ceph has introduced a new key type for CephX credentials. Therefore, a new procedure exists for upgrading and rotating Ceph daemon keys as part of this CVE. Before upgrading a Ceph cluster, the operator should familiarize themselves with the procedure to upgrade CephX keys. These steps are for package-based deployments of Ceph. In other sections, the document also includes new information about key rotation procedures, monitor authentication controls, and emergency recovery procedures. Deployments using cephadm will automate the process except for client keys. You may notice that Cephadm spends more time than normal on the upgrade after updating all daemon images. This is due to a new process rotating the OSD and MDS keys. Please be patient. There are plans to improve this in the future. Deployments using Rook will also automate rotation of some client keys with some exclusions. Look to the Rook project's announcement for more details. Client and kernel upgrades are recommended to support aes256k. Note that upstream Linux kernel client support began in kernel 7.0 and has been backported to CentOS Stream 9 and 10. Check with your distribution vendor for backported key support before rotating client keys used by the kernel. As part of upgrading a Ceph cluster, six new health warnings and errors will be generated. This is normal. As part of the process to upgrade/rotate entity keys, you will address the warnings and errors as you go. These are documented beginning here. The CephX documentation has bee

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