# Parser

A parser is software that analyzes text and transforms it into another representation; it commonly serves as a component of a compiler or interpreter.

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## Babel in Khan Academy's i18n Toolchain

DevFeed: [Babel in Khan Academy's i18n Toolchain](<https://devfeed.tech/articles/babel-in-khan-academy-s-i18n-toolchain-27381.md>)

Original publisher: [Read original article](<http://engineering.khanacademy.org/posts/i18n-babel-plugin.htm>)

Author: Khan Academy

Published: 2015-06-22T22:00:00Z

Content type: tutorial

Language: en

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

Topics: [Babel](<https://devfeed.tech/topics/babel.md>), [Internationalization (i18n)](<https://devfeed.tech/topics/i18n.md>), [toolchain](<https://devfeed.tech/topics/toolchain.md>), [es6](<https://devfeed.tech/topics/es6.md>), [JavaScript](<https://devfeed.tech/topics/javascript.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [Universal Syntax Tree.](<https://devfeed.tech/topics/unist.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [architecture](<https://devfeed.tech/tags/architecture.md>), [babel](<https://devfeed.tech/tags/babel.md>), [build](<https://devfeed.tech/tags/build.md>), [build-system](<https://devfeed.tech/tags/build-system.md>), [code](<https://devfeed.tech/tags/code.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [es6](<https://devfeed.tech/tags/es6.md>), [eslint](<https://devfeed.tech/tags/eslint.md>), [frontend](<https://devfeed.tech/tags/frontend.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [news](<https://devfeed.tech/tags/news.md>), [plugin](<https://devfeed.tech/tags/plugin.md>), [source](<https://devfeed.tech/tags/source.md>), [structure](<https://devfeed.tech/tags/structure.md>), [syntax](<https://devfeed.tech/tags/syntax.md>), [tests](<https://devfeed.tech/tags/tests.md>), [toolchain](<https://devfeed.tech/tags/toolchain.md>), [types](<https://devfeed.tech/tags/types.md>), [web-frontend](<https://devfeed.tech/tags/web-frontend.md>), [workflow](<https://devfeed.tech/tags/workflow.md>)

### AI overview

Khan Academy describes switching its ES6 and JSX frontend compilation from jstransform to Babel. The article explains a custom Babel plugin for preserving the project's internationalization behavior and discusses matching generated output, line numbers, whitespace, and the existing build chain.

### Source excerpt

By Kevin Barabash We've been using ES6 (along with JSX) for sometime at Khan Academy. Right now, we're ... Read more

## SCIM directory sync: A deep dive into deprovisioning

DevFeed: [SCIM directory sync: A deep dive into deprovisioning](<https://devfeed.tech/articles/scim-directory-sync-a-deep-dive-into-deprovisioning-16057.md>)

Original publisher: [Read original article](<https://workos.com/blog/scim-directory-sync-deprovisioning-deep-dive>)

Author: WorkOS

Published: 2026-09-08T00:00:00Z

Content type: article

Language: en

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

Topics: [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [Security](<https://devfeed.tech/topics/security.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [Entra ID](<https://devfeed.tech/topics/entra-id.md>)

Tags: [audit](<https://devfeed.tech/tags/audit.md>), [deep-dive](<https://devfeed.tech/tags/deep-dive.md>), [filter](<https://devfeed.tech/tags/filter.md>), [protocol](<https://devfeed.tech/tags/protocol.md>), [provisioning](<https://devfeed.tech/tags/provisioning.md>), [reconciliation](<https://devfeed.tech/tags/reconciliation.md>), [security](<https://devfeed.tech/tags/security.md>)

### AI overview

This deep dive explains how SCIM directory deprovisioning reaches applications, why identity providers commonly deactivate users instead of deleting them, and how provider-specific payloads and missed events can create security risks. It covers normalization, reconciliation, session termination, and inspecting provider requests.

### Source excerpt

What actually happens when a user is removed: the event your app receives, the directories that never send one, and how to catch what gets dropped.

## Parquet File Write Support, Bloom Filters, Improved Performance: Hardwood 1.1.0.Beta1 Is Out

DevFeed: [Parquet File Write Support, Bloom Filters, Improved Performance: Hardwood 1.1.0.Beta1 Is Out](<https://devfeed.tech/articles/parquet-file-write-support-bloom-filters-improved-performance-hardwood-1-1-0-beta1-is-out-18856.md>)

Original publisher: [Read original article](<https://www.morling.dev/blog/parquet-file-write-support-bloom-filters-improved-performance-hardwood-1-1-0-beta1/>)

Published: 2026-08-31T19:36:00Z

Content type: release

Language: en

Sources: [Gunnar Morling](<https://devfeed.tech/sources/gunnar-morling.md>)

Topics: [parquet](<https://devfeed.tech/topics/parquet.md>), [Library](<https://devfeed.tech/topics/library.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [Command-line interface](<https://devfeed.tech/topics/cli.md>), [Compression](<https://devfeed.tech/topics/compression.md>)

Tags: [apache-parquet](<https://devfeed.tech/tags/apache-parquet.md>), [api](<https://devfeed.tech/tags/api.md>), [cli](<https://devfeed.tech/tags/cli.md>), [compression](<https://devfeed.tech/tags/compression.md>), [library](<https://devfeed.tech/tags/library.md>), [parquet](<https://devfeed.tech/tags/parquet.md>), [performance](<https://devfeed.tech/tags/performance.md>), [release](<https://devfeed.tech/tags/release.md>)

### AI overview

The first beta of Hardwood 1.1 introduces initial Parquet file-writing support through record-based and batch-oriented APIs. The release also adds Bloom filters, dictionary-based row-group pruning, performance improvements, and CLI enhancements.

### Source excerpt

Table of Contents Write Support Query Evaluation: Bloom Filters and Dictionary-Based Row-Group Pruning Performance Improvements Hardwood CLI Closing Thoughts "When is write support gonna land in Hardwood?" That's probably the most common question I got over the last few months. As of today, I am very happy to share that the answer has changed from "It's coming soon" to "A first cut is there, give it a try" -- the first Beta of Hardwood 1.1 is out! This is a major milestone for the project, marking the first step in evolving Hardwood from being solely a Parquet parser to a complete library for this widely used columnar file format. But there's more. This release also comes with significant enhancements to the query layer (Bloom filters, dictionary-based row-group pruning), many performance improvements such as a fast path for effectively fixed-length list columns, an even snappier CLI, and much more. Let's dig into some of the new features and changes!

## How Reasoning Traces Work in Language Models

DevFeed: [How Reasoning Traces Work in Language Models](<https://devfeed.tech/articles/what-is-reasoning-30732.md>)

Original publisher: [Read original article](<https://lucumr.pocoo.org/2026/8/19/what-is-reasoning/>)

Author: Armin Ronacher

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

Content type: article

Language: en

Sources: [Armin Ronacher](<https://devfeed.tech/sources/armin-ronacher.md>)

Topics: [Chain-of-thought](<https://devfeed.tech/topics/chain-of-thought.md>), [gpt-oss](<https://devfeed.tech/topics/gpt-oss.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [API](<https://devfeed.tech/topics/api.md>), [Cache](<https://devfeed.tech/topics/cache.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [api](<https://devfeed.tech/tags/api.md>), [chain-of-thought](<https://devfeed.tech/tags/chain-of-thought.md>), [gpt-oss](<https://devfeed.tech/tags/gpt-oss.md>), [reasoning](<https://devfeed.tech/tags/reasoning.md>), [token](<https://devfeed.tech/tags/token.md>)

### AI overview

The article explains reasoning traces as text emitted by a model into a scratchpad before its final answer. It discusses how GPT-OSS uses channel markers and a parser to route analysis into a separate stream, and argues that reasoning effort is shaped by system prompts and training rather than being solely a sampling-process property.

### Source excerpt

A few weeks ago a paper was shared that showed how to extract reasoning traces from closed-weight models. Together with online discussions about tricking models into leaking them, it made me investigate it more out of curiosity. Twitter seems full of half-truths and confusion about how this works, so perhaps this helps some to understand what is happening. Hiding Traces Reasoning traces are usually hidden from us. We have lamented this, but mostly have to accept it. Open-weight models thankfully reveal them, and from their behavior you can see that their traces can be long and confusing. This is probably a good reason to separate them from what is normally shown to users. At minimum, UIs need to detect them. The industry has done a good job at making reasoning traces sound special and exotic, but they really are just text: the model is trained to emit its thinking into a scratchpad as part of its response, before its final answer. GPT-OSS's Harmony response format makes this easy to see: <|channel|>analysis<|message|> I need to work this out ... <|end|><|start|>assistant<|channel|>final<|message|> The answer is ... <|return|> The markers are special tokens, but the reasoning between them uses "the same text" as the final answer (just that GPT chain-of-thought text sounds really funny). When the model samples the analysis channel token, a parser routes the following text into a separate stream exposed through the Responses API. For closed models, presumably a simple model redacts and summarizes it. Reasoning Effort How much budget goes to reasoning? Earlier APIs exposed reasoning token budgets, making it seem like a property of the sampling process. In reality, reasoning effort is baked into the system prompt. GPT-OSS puts this into the system prompt: Reasoning: low That's it. Training produces the resulting behavior, such as emitting the token sequence that switches to the analysis channel. This also explains why changing the effort invalidates the KV cache. I think

## DocLang: a markup language for LLMs

DevFeed: [DocLang: a markup language for LLMs](<https://devfeed.tech/articles/doclang-a-markup-language-for-llms-17332.md>)

Original publisher: [Read original article](<https://research.ibm.com/blog/doclang-ai-native-doc-standard>)

Author: Kim Martineau

Published: 2026-08-12T12:00:00Z

Content type: article

Language: en

Sources: [IBM Research](<https://devfeed.tech/sources/ibm-research.md>)

Topics: [XML](<https://devfeed.tech/topics/xml.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [Parsing](<https://devfeed.tech/topics/parsing.md>), [Large Language Model](<https://devfeed.tech/topics/llm.md>), [Generative AI](<https://devfeed.tech/topics/generative-ai.md>), [HTML](<https://devfeed.tech/topics/html.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [algorithms](<https://devfeed.tech/tags/algorithms.md>), [generative-ai](<https://devfeed.tech/tags/generative-ai.md>), [llms](<https://devfeed.tech/tags/llms.md>), [news](<https://devfeed.tech/tags/news.md>), [parsing](<https://devfeed.tech/tags/parsing.md>), [xml](<https://devfeed.tech/tags/xml.md>)

### AI overview

IBM researchers introduce DocLang, a constrained XML sub-language designed to help large language models interpret document structure. The article explains how it represents semantics, layout, bounding boxes, and reading order, and how it may reduce token use, latency, and inference costs in AI pipelines.

### Source excerpt

The lead researcher behind IBM's popular document parser, Docling, explains why generative AI needs its own document standard.

## The simplest interpreter: Write yourself a compiler, Part I

DevFeed: [The simplest interpreter: Write yourself a compiler, Part I](<https://devfeed.tech/articles/the-simplest-interpreter-write-yourself-a-compiler-part-i-38038.md>)

Original publisher: [Read original article](<https://nurkiewicz.com/2026/07/simplest-interpreter-write-yourself-a-compiler-part-i.html>)

Published: 2026-07-16T22:00:00Z

Content type: tutorial

Language: en

Sources: [Tomasz Nurkiewicz around Java and concurrency](<https://devfeed.tech/sources/tomasz-nurkiewicz-around-java-and-concurrency.md>)

Topics: [Compiler](<https://devfeed.tech/topics/compiler.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [Parsing](<https://devfeed.tech/topics/parsing.md>), [Software Engineering](<https://devfeed.tech/topics/software-engineering.md>), [Go Language](<https://devfeed.tech/topics/go-language.md>)

Tags: [code](<https://devfeed.tech/tags/code.md>), [compiler](<https://devfeed.tech/tags/compiler.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [go](<https://devfeed.tech/tags/go.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [interpreter](<https://devfeed.tech/tags/interpreter.md>), [lexer](<https://devfeed.tech/tags/lexer.md>), [writing-compiler](<https://devfeed.tech/tags/writing-compiler.md>)

### AI overview

This tutorial begins a series on building a compiler by implementing a simple interpreter in Go. The interpreter lexes and evaluates an input expression containing the addition of two numbers, using a regular expression to validate the structure and extract tokens.

### Source excerpt

I've always felt that writing a compiler is the most romantic software engineering task. You're writing a program that reads textual instructions describing precisely what a computer should do. Do not confuse this with prompting an LLM, where you write vague, verbose instructions that only loosely describe what a computer might do. But I digress.

## We compiled our TypeScript parser to WASM

DevFeed: [We compiled our TypeScript parser to WASM](<https://devfeed.tech/articles/we-compiled-our-typescript-parser-to-wasm-17859.md>)

Original publisher: [Read original article](<https://encore.dev/blog/typescript-parser-wasm>)

Author: Ivan Cernja

Published: 2026-07-15T00:00:00Z

Content type: article

Language: en

Sources: [Encore Updates](<https://devfeed.tech/sources/encore-updates.md>)

Topics: [Parser](<https://devfeed.tech/topics/parser.md>), [Rust](<https://devfeed.tech/topics/rust.md>), [wasm](<https://devfeed.tech/topics/wasm.md>), [browser](<https://devfeed.tech/topics/browser.md>), [TypeScript](<https://devfeed.tech/topics/typescript.md>)

Tags: [browser](<https://devfeed.tech/tags/browser.md>), [parsing](<https://devfeed.tech/tags/parsing.md>), [rust](<https://devfeed.tech/tags/rust.md>), [typescript](<https://devfeed.tech/tags/typescript.md>), [wasm](<https://devfeed.tech/tags/wasm.md>)

### AI overview

Encore describes compiling its Rust parser for TypeScript infrastructure declarations to WebAssembly so it can run in the browser. The browser-based parser supports reproducing parser errors from code snippets and shared links, and powers the tsparser.encore.dev playground.

### Source excerpt

How we compiled the Rust parser that reads infrastructure out of Encore code so it runs in the browser, and how we use it to reproduce the parser errors people report.

## @clickhouse/rowbinary: when your library is also a parser compiler

DevFeed: [@clickhouse/rowbinary: when your library is also a parser compiler](<https://devfeed.tech/articles/clickhouse-rowbinary-when-your-library-is-also-a-parser-compiler-5150.md>)

Original publisher: [Read original article](<https://clickhouse.com/blog/clickhouse-rowbinary-library-parser-compiler>)

Author: Peter Leonov

Published: 2026-07-14T20:59:26Z

Content type: article

Language: en

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

Topics: [clickhouse](<https://devfeed.tech/topics/clickhouse.md>), [Node.js](<https://devfeed.tech/topics/node-js.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [Agent Skill](<https://devfeed.tech/topics/agent-skill.md>), [Compiler](<https://devfeed.tech/topics/compiler.md>), [coding](<https://devfeed.tech/topics/coding.md>)

Tags: [agent-skill](<https://devfeed.tech/tags/agent-skill.md>), [bugs](<https://devfeed.tech/tags/bugs.md>), [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [coding](<https://devfeed.tech/tags/coding.md>), [cost](<https://devfeed.tech/tags/cost.md>), [generate](<https://devfeed.tech/tags/generate.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [node-js](<https://devfeed.tech/tags/node-js.md>)

### AI overview

@clickhouse/rowbinary is a Node.js library for reading and writing ClickHouse RowBinary formats. It also provides an Agent Skill that lets a coding agent generate query-specific parsers from the library's reading primitives, producing faster parsers with less runtime dispatch and reducing risks associated with handwritten binary decoders.

### Source excerpt

We've released @clickhouse/rowbinary a Node.js reader and writer for ClickHouse's RowBinary formats. You can import it and call its generic parser like any other library. But it also ships as an Agent Skill: point a coding agent at the bundled `SKILL.md`

## JulyReply - Re: Stuck in draft

DevFeed: [JulyReply - Re: Stuck in draft](<https://devfeed.tech/articles/julyreply-re-stuck-in-draft-38539.md>)

Original publisher: [Read original article](<https://msfjarvis.dev/posts/julyreply-re-stuck-in-draft/>)

Author: Harsh Shandilya

Published: 2026-07-09T18:52:00Z

Content type: opinion

Language: en

Sources: [Posts on Harsh Shandilya](<https://devfeed.tech/sources/posts-on-harsh-shandilya.md>)

Topics: [Learning](<https://devfeed.tech/topics/learning.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [REST API](<https://devfeed.tech/topics/rest-api.md>), [Containers](<https://devfeed.tech/topics/containers.md>), [Git](<https://devfeed.tech/topics/git.md>), [Cloudflare](<https://devfeed.tech/topics/cloudflare.md>), [Compose](<https://devfeed.tech/topics/compose.md>), [LLMs](<https://devfeed.tech/topics/llms.md>), [Command-line interface](<https://devfeed.tech/topics/cli.md>)

Tags: [blog](<https://devfeed.tech/tags/blog.md>), [blog-posts](<https://devfeed.tech/tags/blog-posts.md>), [blogging](<https://devfeed.tech/tags/blogging.md>), [cli](<https://devfeed.tech/tags/cli.md>), [cloudflare](<https://devfeed.tech/tags/cloudflare.md>), [compose](<https://devfeed.tech/tags/compose.md>), [containers](<https://devfeed.tech/tags/containers.md>), [git](<https://devfeed.tech/tags/git.md>), [julyreply](<https://devfeed.tech/tags/julyreply.md>), [llms](<https://devfeed.tech/tags/llms.md>), [rest-api](<https://devfeed.tech/tags/rest-api.md>), [technical-writing](<https://devfeed.tech/tags/technical-writing.md>)

### AI overview

The author reflects on managing unfinished blog drafts, explaining that feedback, public interest, curiosity, and motivation sometimes lead to completion while many drafts are abandoned. They invite readers to vote on several proposed technical topics, including Retrofit, an HTML parser, Git, Docker containers in NixOS, Cloudflare, Compose UI, and LLM-assisted development.

### Source excerpt

On drafts and being okay with them

## Crystal 1.20.3 is released!

DevFeed: [Crystal 1.20.3 is released!](<https://devfeed.tech/articles/crystal-1-20-3-is-released-22336.md>)

Original publisher: [Read original article](<https://crystal-lang.org/2026/07/02/1.20.3-released/>)

Author: Julien Portalier

Published: 2026-07-02T00:00:00Z

Content type: release

Language: en

Sources: [Crystal](<https://devfeed.tech/sources/crystal.md>)

Topics: [Crystal](<https://devfeed.tech/topics/crystal.md>), [releases](<https://devfeed.tech/topics/releases.md>), [Vulnerabilities](<https://devfeed.tech/topics/vulnerabilities.md>), [YAML](<https://devfeed.tech/topics/yaml.md>), [Parser](<https://devfeed.tech/topics/parser.md>)

Tags: [parsing](<https://devfeed.tech/tags/parsing.md>), [release](<https://devfeed.tech/tags/release.md>), [releases](<https://devfeed.tech/tags/releases.md>), [security](<https://devfeed.tech/tags/security.md>), [security-vulnerabilities](<https://devfeed.tech/tags/security-vulnerabilities.md>), [yaml](<https://devfeed.tech/tags/yaml.md>)

### AI overview

Crystal 1.20.3 is a release that fixes two security vulnerabilities in its YAML parsers. The fixes address excessive nesting that could cause stack overflows and excessive YAML alias expansion associated with billion laughs attacks. The article recommends upgrading when processing YAML files from unknown origins.

### Source excerpt

We are announcing a new Crystal release 1.20.3 with fixes for two security vulnerabilities in the YAML parsers. We recommend upgrading as soon as possible if your application processes YAML files from unknown origins.

## Designing GPU-Accelerated Query Engines with NVIDIA GQE

DevFeed: [Designing GPU-Accelerated Query Engines with NVIDIA GQE](<https://devfeed.tech/articles/designing-gpu-accelerated-query-engines-with-nvidia-gqe-6799.md>)

Original publisher: [Read original article](<https://developer.nvidia.com/blog/designing-gpu-accelerated-query-engines-with-nvidia-gqe/>)

Author: Michelle Horton

Published: 2026-06-30T17:36:43Z

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: [GPU](<https://devfeed.tech/topics/gpu.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [NCCL](<https://devfeed.tech/topics/nccl.md>), [CUDA](<https://devfeed.tech/topics/cuda.md>), [NVLink](<https://devfeed.tech/topics/nvlink.md>), [Compression](<https://devfeed.tech/topics/compression.md>), [IO](<https://devfeed.tech/topics/io.md>), [SQL](<https://devfeed.tech/topics/sql.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [Streaming](<https://devfeed.tech/topics/streaming.md>), [Hardware](<https://devfeed.tech/topics/hardware.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>)

Tags: [accelerate](<https://devfeed.tech/tags/accelerate.md>), [compression](<https://devfeed.tech/tags/compression.md>), [cpu](<https://devfeed.tech/tags/cpu.md>), [cuda](<https://devfeed.tech/tags/cuda.md>), [cuda-x](<https://devfeed.tech/tags/cuda-x.md>), [data](<https://devfeed.tech/tags/data.md>), [data-analytics-processing](<https://devfeed.tech/tags/data-analytics-processing.md>), [data-center-cloud](<https://devfeed.tech/tags/data-center-cloud.md>), [data-science](<https://devfeed.tech/tags/data-science.md>), [databases](<https://devfeed.tech/tags/databases.md>), [featured](<https://devfeed.tech/tags/featured.md>), [gpu](<https://devfeed.tech/tags/gpu.md>), [hardware](<https://devfeed.tech/tags/hardware.md>), [memory](<https://devfeed.tech/tags/memory.md>), [nvidia](<https://devfeed.tech/tags/nvidia.md>), [nvlink](<https://devfeed.tech/tags/nvlink.md>), [performance](<https://devfeed.tech/tags/performance.md>), [sql](<https://devfeed.tech/tags/sql.md>)

### AI overview

This article presents GQE, a reference architecture for executing SQL queries on GPUs. It explains how NVIDIA hardware and CUDA-X libraries address memory, I/O, data movement, decompression, and end-to-end performance challenges for large datasets.

### Source excerpt

GPU-accelerated query engines are often constrained by memory and I/O bandwidth. NVIDIA hardware advances--including high bandwidth memory (HBM), NVIDIA...

## Build the Lab Once, Test It Forever: A CML2 Spine-Leaf Wired for pyATS

DevFeed: [Build the Lab Once, Test It Forever: A CML2 Spine-Leaf Wired for pyATS](<https://devfeed.tech/articles/build-the-lab-once-test-it-forever-a-cml2-spine-leaf-wired-for-pyats-30867.md>)

Original publisher: [Read original article](<https://brent.leekley.me/blog/build-the-lab-once/>)

Author: Brent Leekley

Published: 2026-06-14T00:00:00Z

Content type: tutorial

Language: en

Sources: [brent.leekley.me blog](<https://devfeed.tech/sources/brent-leekley-me-blog.md>)

Topics: [Network](<https://devfeed.tech/topics/network.md>), [Testing](<https://devfeed.tech/topics/testing.md>), [Cisco](<https://devfeed.tech/topics/cisco.md>), [Code](<https://devfeed.tech/topics/code.md>), [API](<https://devfeed.tech/topics/api.md>), [Parser](<https://devfeed.tech/topics/parser.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [cisco](<https://devfeed.tech/tags/cisco.md>), [cisco-modeling-labs](<https://devfeed.tech/tags/cisco-modeling-labs.md>), [cml](<https://devfeed.tech/tags/cml.md>), [cml2](<https://devfeed.tech/tags/cml2.md>), [code](<https://devfeed.tech/tags/code.md>), [genie](<https://devfeed.tech/tags/genie.md>), [iol-xe](<https://devfeed.tech/tags/iol-xe.md>), [network-automation](<https://devfeed.tech/tags/network-automation.md>), [network-testing](<https://devfeed.tech/tags/network-testing.md>), [ospf](<https://devfeed.tech/tags/ospf.md>), [parsing](<https://devfeed.tech/tags/parsing.md>), [pyats](<https://devfeed.tech/tags/pyats.md>), [spine-leaf](<https://devfeed.tech/tags/spine-leaf.md>), [testbed](<https://devfeed.tech/tags/testbed.md>), [virl2-client](<https://devfeed.tech/tags/virl2-client.md>)

### AI overview

This tutorial describes a four-node spine-leaf lab in Cisco Modeling Labs 2 (CML2) that generates a Cisco pyATS testbed from the CML API. The approach treats the lab definition as the source of truth so regenerated inventories remain aligned with topology changes, and uses an OSPF underlay with a management network.

### Source excerpt

Stop hand-maintaining your pyATS testbed. Build a four-node spine-leaf in CML2 as code, then generate the testbed straight from the CML API so it never drifts from the lab, with live Genie-parsed proof over a System Bridge management network.

## Assumptions weaken properties

DevFeed: [Assumptions weaken properties](<https://devfeed.tech/articles/assumptions-weaken-properties-25481.md>)

Original publisher: [Read original article](<https://buttondown.com/hillelwayne/archive/assumptions-weaken-properties/>)

Author: Hillel Wayne

Published: 2026-05-20T15:13:16Z

Content type: tutorial

Language: en

Sources: [Newsletter feed for Hillel Wayne's Newsletter](<https://devfeed.tech/sources/newsletter-feed-for-hillel-wayne-s-newsletter.md>)

Topics: [Formal methods](<https://devfeed.tech/topics/formal-methods.md>), [Math and Logic](<https://devfeed.tech/topics/math-and-logic.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [JSON](<https://devfeed.tech/topics/json.md>)

Tags: [bug](<https://devfeed.tech/tags/bug.md>), [formal-methods](<https://devfeed.tech/tags/formal-methods.md>), [json](<https://devfeed.tech/tags/json.md>), [math](<https://devfeed.tech/tags/math.md>), [test](<https://devfeed.tech/tags/test.md>)

### AI overview

The article explains, using logical implication, why adding assumptions weakens a formal property. It illustrates the idea with tests, formal specifications, fairness constraints, and a JSON parser verified only for ASCII input.

### Source excerpt

In some tests are stronger than others, I defined STRONG => WEAK to mean "any system passing test STRONG is also guaranteed to pass WEAK". This uses the logical implication operator, defined as P => Q = !P || (P && Q). Implication may be the most overworked operator in logic. Among other things, it's also used in formal specification, where Spec => Prop means "any system satisfying Spec has property Prop" and ASSUME => Spec means "The assumption ASSUME must hold in order for the system to satisfy Spec." Now let's mush these all together and do some math. To start, "the system has property Prop" is the same as "the system passes the test that checks Prop", so test strength is also property strength. Now let "ASSUME => Prop" mean "the system passes Prop assuming ASSUME is true." In classic logic, if P is true, then obviously !Q || P is true. Further, that is equivalent (just draw the truth table!) to !Q || (P && Q). So for any propositions P and Q, P => (Q => P). In other words, Prop => (ASSUME => Prop). In other other words, "the system passes Prop" is a stronger property than "the system passes Prop whenever our assumptions hold." In other other other words, any assumption added makes a property weaker. This makes intuitive sense to me. A JSON parser that's only been verified with ASCII strings has the property "input only uses ASCII && is valid json => correctly parsed". A better JSON parser that works for all Unicode will have the property "is valid json => correctly parsed", which has fewer assumptions, meaning it's guaranteed to work in a strict superset of cases. It also matches the intuition that "more assumptions means more likely to go wrong". We have a bug whenever Prop is false. The only way for Spec => Prop to be true and Prop be false is if Spec is false, eg our system doesn't satisfy the specification we intended to implement. On the other hand, Spec => (ASSUME => Prop) && !Prop is true whenever Spec and/or ASSUME is false, meaning a correctly-implement

## Designing a custom AI agent for repetitive QA workflows

DevFeed: [Designing a custom AI agent for repetitive QA workflows](<https://devfeed.tech/articles/designing-a-custom-ai-agent-for-repetitive-qa-workflows-22591.md>)

Original publisher: [Read original article](<https://medium.com/amex-gbt-technology/designing-a-custom-ai-agent-for-repetitive-qa-workflows-6dcce6f9de10?source=rss----60a0578f4096---4>)

Author: Rimple Sharma

Published: 2026-05-18T06:01:01Z

Content type: tutorial

Language: en

Sources: [Amex GBT Technology](<https://devfeed.tech/sources/amex-gbt-technology.md>)

Topics: [AI Agent](<https://devfeed.tech/topics/ai-agent.md>), [Markdown](<https://devfeed.tech/topics/markdown.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [context](<https://devfeed.tech/topics/context.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [ai-agent](<https://devfeed.tech/tags/ai-agent.md>), [ai-skills](<https://devfeed.tech/tags/ai-skills.md>), [context](<https://devfeed.tech/tags/context.md>), [markdown](<https://devfeed.tech/tags/markdown.md>), [parsing](<https://devfeed.tech/tags/parsing.md>), [software-testing](<https://devfeed.tech/tags/software-testing.md>), [test-automation](<https://devfeed.tech/tags/test-automation.md>)

### AI overview

This tutorial explains how to design a custom AI agent for repetitive QA workflows. It focuses on encoding structured instructions in Markdown, including headers, rules, variables, examples, output schemas, and executable commands, and introduces the agent's processing loop.

### Source excerpt

Part 2: Markdown as agent logic and the ReAct loop in action. In Part 1, I walked through the problem, repetitive QA work that resists pure scripting and the three pillars of a useful agent: input validation, context awareness, and a decision engine. I also showed why structured instructions beat plain text. This part is about how that structure gets encoded, how the loop runs, and what the impact looked like in practice. Why agents use Markdown When writing instructions for an agent, Markdown isn't just a formatting choice, it acts as a bridge between human-readable text and machine-processable logic. It's become a common format for agent communication because both humans and machines can work with it efficiently. But what most people miss... When you write agent instructions in Markdown, you're creating a weighted logic map, as well as just writing text. A few patterns that matter: 1. Semantic headers (#, ##) act as anchors for the agent's attention. Wrapping your mandatory rules under a clear header makes it far less likely the agent will overlook them mid-task. 2. Horizontal rules ( -- -) separate identity from instructions. Without this boundary, rules from one section bleed into another and the agent loses track of what governs what. 3. Bold keywords (**NEVER**, **ALWAYS**, **MANDATORY**) tend to be treated as hard constraints. Bold is a hard constraint. Italics are treated as a soft suggestion. 4. Blockquotes (>) are useful for examples. Wrapping an example in a blockquote signals to the agent that this is a reference, not a direct command. 5. {{curly_braces}} mark dynamic variables. They tell the agent that this part of the input will be filled in at runtime -- things like {{TICKET_ID}} or {{DATASET_NAME}} -- so it never substitutes a generic placeholder into a production file. 6. Fenced code blocks define output schemas. If you want the agent to always respond in a specific format, put that format in a code block. It treats it as a contract. 7. Inline code signa

## Databricks brings GPT-5.5 to enterprise agent workflows

DevFeed: [Databricks brings GPT-5.5 to enterprise agent workflows](<https://devfeed.tech/articles/databricks-brings-gpt-5-5-to-enterprise-agent-workflows-6366.md>)

Original publisher: [Read original article](<https://openai.com/index/databricks>)

Published: 2026-05-15T00:00:00Z

Content type: news

Language: en

Sources: [OpenAI News](<https://devfeed.tech/sources/openai-news.md>)

Topics: [databricks](<https://devfeed.tech/topics/databricks.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [Benchmark](<https://devfeed.tech/topics/benchmark.md>), [Agent Harness](<https://devfeed.tech/topics/agent-harness.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [long-context](<https://devfeed.tech/topics/long-context.md>), [Orchestration](<https://devfeed.tech/topics/orchestration.md>), [API](<https://devfeed.tech/topics/api.md>)

Tags: [agents](<https://devfeed.tech/tags/agents.md>), [ai](<https://devfeed.tech/tags/ai.md>), [api](<https://devfeed.tech/tags/api.md>), [benchmark](<https://devfeed.tech/tags/benchmark.md>), [databricks](<https://devfeed.tech/tags/databricks.md>), [enterprise](<https://devfeed.tech/tags/enterprise.md>), [gpt](<https://devfeed.tech/tags/gpt.md>), [long-context](<https://devfeed.tech/tags/long-context.md>), [model](<https://devfeed.tech/tags/model.md>), [orchestration](<https://devfeed.tech/tags/orchestration.md>), [production](<https://devfeed.tech/tags/production.md>), [retrieval](<https://devfeed.tech/tags/retrieval.md>), [search](<https://devfeed.tech/tags/search.md>), [workflows](<https://devfeed.tech/tags/workflows.md>)

### AI overview

Databricks is making GPT-5.5 available for enterprise agent workflows through AI Unity Gateway, following its state-of-the-art result on the OfficeQA Pro benchmark. The article reports 50% accuracy and a 46% error reduction versus GPT-5.4, with gains in parsing scanned and legacy documents, retrieval, orchestration, and multi-step workflow execution.

### Source excerpt

Databricks uses GPT-5.5 for enterprise agent workflows after the model set a new state of the art on the OfficeQA Pro benchmark.

## VARIANT Support, Interactive Parquet File TUI: Hardwood 1.0.0.Beta2 Is Out

DevFeed: [VARIANT Support, Interactive Parquet File TUI: Hardwood 1.0.0.Beta2 Is Out](<https://devfeed.tech/articles/variant-support-interactive-parquet-file-tui-hardwood-1-0-0-beta2-is-out-18887.md>)

Original publisher: [Read original article](<https://www.morling.dev/blog/variant-support-interactive-parquet-file-tui-hardwood-1-0-0-beta2-is-out/>)

Published: 2026-04-29T17:45:00Z

Content type: release

Language: en

Sources: [Gunnar Morling](<https://devfeed.tech/sources/gunnar-morling.md>)

Topics: [parquet](<https://devfeed.tech/topics/parquet.md>), [Text-based user interface](<https://devfeed.tech/topics/tui.md>), [Command-line interface](<https://devfeed.tech/topics/cli.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [API](<https://devfeed.tech/topics/api.md>), [Amazon S3](<https://devfeed.tech/topics/amazon-s3.md>)

Tags: [apache-parquet](<https://devfeed.tech/tags/apache-parquet.md>), [cli](<https://devfeed.tech/tags/cli.md>), [compression](<https://devfeed.tech/tags/compression.md>), [parquet](<https://devfeed.tech/tags/parquet.md>), [performance](<https://devfeed.tech/tags/performance.md>), [release](<https://devfeed.tech/tags/release.md>), [s3](<https://devfeed.tech/tags/s3.md>), [screen](<https://devfeed.tech/tags/screen.md>), [storage](<https://devfeed.tech/tags/storage.md>)

### AI overview

Hardwood 1.0.0.Beta2 adds support for VARIANT columns, an interactive text-based UI for examining Parquet files, improved performance, and more efficient object-storage reads.

### Source excerpt

Table of Contents VARIANT Support Hardwood CLI TUI Unified Reader API Performance Improvements Wrapping Up I am happy to announce the release of Hardwood 1.0.0.Beta2! The latest version of this new parser for Apache Parquet comes with support for VARIANT columns, an interactive text-based UI (TUI) for examining and analysing the structure of Parquet files, significantly improved performance, more efficient reading of files from object storage, and much more.

## ClickHouse at FOSDEM 2026

DevFeed: [ClickHouse at FOSDEM 2026](<https://devfeed.tech/articles/clickhouse-at-fosdem-2026-5073.md>)

Original publisher: [Read original article](<https://clickhouse.com/blog/clickhouse-at-fosdem-2026>)

Author: Tyler Hannan

Published: 2026-04-08T18:00:47Z

Content type: article

Language: en

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

Topics: [clickhouse](<https://devfeed.tech/topics/clickhouse.md>), [data-processing](<https://devfeed.tech/topics/data-processing.md>), [real-time](<https://devfeed.tech/topics/real-time.md>), [debugging](<https://devfeed.tech/topics/debugging.md>), [LLVM](<https://devfeed.tech/topics/llvm.md>), [log management](<https://devfeed.tech/topics/log-management.md>), [Shell](<https://devfeed.tech/topics/shell.md>), [SQL](<https://devfeed.tech/topics/sql.md>), [dashboards](<https://devfeed.tech/topics/dashboards.md>), [observability](<https://devfeed.tech/topics/observability.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [Tooling](<https://devfeed.tech/topics/tooling.md>)

Tags: [bugs](<https://devfeed.tech/tags/bugs.md>), [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [community](<https://devfeed.tech/tags/community.md>), [conference](<https://devfeed.tech/tags/conference.md>), [data](<https://devfeed.tech/tags/data.md>), [debugging](<https://devfeed.tech/tags/debugging.md>), [llvm](<https://devfeed.tech/tags/llvm.md>), [logging](<https://devfeed.tech/tags/logging.md>), [performance](<https://devfeed.tech/tags/performance.md>), [real-time](<https://devfeed.tech/tags/real-time.md>), [sql](<https://devfeed.tech/tags/sql.md>), [visualization](<https://devfeed.tech/tags/visualization.md>)

### AI overview

ClickHouse at FOSDEM 2026 recaps the ClickHouse community dinner and technical talks on real-time visualization, production hotpatching with LLVM XRay, and inverted database indexes.

### Source excerpt

FOSDEM 2026 took place on 31 January and 1 February in Brussels, and it was a great weekend for the ClickHouse community, both inside the conference rooms and out.

## HTTP/1.1 Must Die: Conquering the 0.CL Challenge

DevFeed: [HTTP/1.1 Must Die: Conquering the 0.CL Challenge](<https://devfeed.tech/articles/http-1-1-must-die-conquering-the-0-cl-challenge-7725.md>)

Original publisher: [Read original article](<https://portswigger.net/blog/http-1-1-must-die-conquering-the-0-cl-challenge>)

Author: Fran Hutchings

Published: 2026-03-13T09:21:19Z

Content type: article

Language: en

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

Topics: [Security](<https://devfeed.tech/topics/security.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [payload](<https://devfeed.tech/topics/payload.md>), [Extension](<https://devfeed.tech/topics/extension.md>), [Script](<https://devfeed.tech/topics/script.md>)

Tags: [article](<https://devfeed.tech/tags/article.md>), [extension](<https://devfeed.tech/tags/extension.md>), [http](<https://devfeed.tech/tags/http.md>), [payload](<https://devfeed.tech/tags/payload.md>), [security](<https://devfeed.tech/tags/security.md>), [techniques](<https://devfeed.tech/tags/techniques.md>), [tools](<https://devfeed.tech/tags/tools.md>)

### AI overview

A technical guide to the 0.CL variant of HTTP request smuggling, explaining the front-end/back-end parsing discrepancy, four proof-of-concept approaches, and detection with PortSwigger's HTTP Request Smuggler extension in a controlled lab.

### Source excerpt

Note: This is a guest post by pentester Julen Garrido Estévez (@b3xal). 1. Acknowledgements 2. Intro 3. Required tools 4. Strategy to solve/exploit the lab 5. Detecting 0.CL 5.1. Practical confirmatio

## Vite 8.0 is out!

DevFeed: [Vite 8.0 is out!](<https://devfeed.tech/articles/vite-8-0-is-out-3022.md>)

Original publisher: [Read original article](<https://vite.dev/blog/announcing-vite8>)

Author: The Vite Team

Published: 2026-03-12T00:00:00Z

Content type: release

Language: en

Sources: [Vite](<https://devfeed.tech/sources/vite.md>)

Topics: [Vite](<https://devfeed.tech/topics/vite.md>), [Rust](<https://devfeed.tech/topics/rust.md>), [Optimization](<https://devfeed.tech/topics/optimization.md>), [Developer experience](<https://devfeed.tech/topics/developer-experience.md>), [Orchestration](<https://devfeed.tech/topics/orchestration.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [npm](<https://devfeed.tech/topics/npm.md>), [GitHub](<https://devfeed.tech/topics/github.md>)

Tags: [changelog](<https://devfeed.tech/tags/changelog.md>), [community](<https://devfeed.tech/tags/community.md>), [developer](<https://devfeed.tech/tags/developer.md>), [developer-experience](<https://devfeed.tech/tags/developer-experience.md>), [docs](<https://devfeed.tech/tags/docs.md>), [guide](<https://devfeed.tech/tags/guide.md>), [links](<https://devfeed.tech/tags/links.md>), [maintainers](<https://devfeed.tech/tags/maintainers.md>), [optimization](<https://devfeed.tech/tags/optimization.md>), [orchestration](<https://devfeed.tech/tags/orchestration.md>), [rust](<https://devfeed.tech/tags/rust.md>), [speed](<https://devfeed.tech/tags/speed.md>)

### AI overview

Vite 8 is a stable release that replaces Vite's separate esbuild and Rollup bundlers with Rolldown, a unified Rust-based bundler. The article highlights faster builds, plugin compatibility, a new searchable plugin registry, migration resources, and ways to contribute to the Vite ecosystem.

### Source excerpt

Vite 8.0 is out!  March 12, 2026 We're thrilled to announce the stable release of Vite 8! When Vite first launched, we made a pragmatic bet on two bundlers: esbuild for speed during development, and Rollup for optimized production builds. That bet served us well for years. We're very grateful to the Rollup and esbuild maintainers. Vite wouldn't have succeeded without them. Today, it resolves into one: Vite 8 ships with Rolldown as its single, unified, Rust-based bundler, delivering up to 10-30x faster builds while maintaining full plugin compatibility. This is the most significant architectural change since Vite 2. Vite is now being downloaded 65 million times a week, and the ecosystem continues to grow with every release. To help developers navigate the ever-expanding plugin landscape, we also launched registry.vite.dev, a searchable directory of plugins for Vite, Rolldown, and Rollup that collects plugin data from npm daily. Quick links: Docs Translations: 简体中文, 日本語, Español, Português, 한국어, Deutsch, فارسی Migration Guide GitHub Changelog Play online with Vite 8 using vite.new or scaffold a Vite app locally with your preferred framework running pnpm create vite. Check out the Getting Started Guide for more information. We invite you to help us improve Vite (joining the more than 1.2K contributors to Vite Core), our dependencies, or plugins and projects in the ecosystem. Learn more at our Contributing Guide. A good way to get started is by triaging issues, reviewing PRs, sending tests PRs based on open issues, and supporting others in Discussions or Vite Land's help forum. If you have questions, join our Discord community and talk to us in the #contributing channel. Stay updated and connect with others building on top of Vite by following us on Bluesky, X, or Mastodon. The Rolldown-Powered Vite  The problem  Since its earliest versions, Vite relied on two separate bundlers to serve different needs. esbuild handled fast compilation during development (dependency

## What Happens to an SQL Query?

DevFeed: [What Happens to an SQL Query?](<https://devfeed.tech/articles/what-happens-to-an-sql-query-34693.md>)

Original publisher: [Read original article](<https://newsletter.systemdesigncodex.com/p/what-happens-to-an-sql-query>)

Author: Saurabh Dashora

Published: 2026-03-04T03:14:28Z

Content type: tutorial

Language: en

Sources: [System Design Codex](<https://devfeed.tech/sources/system-design-codex.md>)

Topics: [SQL](<https://devfeed.tech/topics/sql.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [syntax](<https://devfeed.tech/topics/syntax.md>)

Tags: [database](<https://devfeed.tech/tags/database.md>), [diagram](<https://devfeed.tech/tags/diagram.md>), [errors](<https://devfeed.tech/tags/errors.md>), [execution](<https://devfeed.tech/tags/execution.md>), [locks](<https://devfeed.tech/tags/locks.md>), [rollback](<https://devfeed.tech/tags/rollback.md>), [sql](<https://devfeed.tech/tags/sql.md>), [syntax](<https://devfeed.tech/tags/syntax.md>)

### AI overview

This tutorial explains how an SQL query moves through a database. It covers transport and access checks, parsing and optimization into an execution plan, execution through the storage engine, and supporting components such as transactions, locks, buffering, and recovery.

### Source excerpt

The Journey Through the DB

## Python 3.12.13, 3.11.15 and 3.10.20 are now available!

DevFeed: [Python 3.12.13, 3.11.15 and 3.10.20 are now available!](<https://devfeed.tech/articles/python-3-12-13-3-11-15-and-3-10-20-are-now-available-2393.md>)

Original publisher: [Read original article](<https://blog.python.org/2026/03/python-31213-31115-31020/>)

Author: Thomas Wouters

Published: 2026-03-03T00:00:00Z

Content type: release

Language: en

Sources: [Python Insider](<https://devfeed.tech/sources/python-insider.md>)

Topics: [Python](<https://devfeed.tech/topics/python.md>), [releases](<https://devfeed.tech/topics/releases.md>), [Security](<https://devfeed.tech/topics/security.md>), [Python 3.10](<https://devfeed.tech/topics/python-3-10.md>), [XML](<https://devfeed.tech/topics/xml.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [HTML](<https://devfeed.tech/topics/html.md>), [SSL](<https://devfeed.tech/topics/ssl.md>)

Tags: [html](<https://devfeed.tech/tags/html.md>), [http](<https://devfeed.tech/tags/http.md>), [memory](<https://devfeed.tech/tags/memory.md>), [memory-safety](<https://devfeed.tech/tags/memory-safety.md>), [python](<https://devfeed.tech/tags/python.md>), [python-3-10](<https://devfeed.tech/tags/python-3-10.md>), [releases](<https://devfeed.tech/tags/releases.md>), [security](<https://devfeed.tech/tags/security.md>), [ssl](<https://devfeed.tech/tags/ssl.md>)

### AI overview

Python 3.12.13, 3.11.15, and 3.10.20 are security-only source releases addressing vulnerabilities and hardening email, HTTP, XML, HTML, denial-of-service, and SSL handling.

### Source excerpt

[Python Releases For Your Security!](https://discuss.python.org/t/python-3-12-13-3-11-15-and-3-10-20-are-now-available/106363) New security releases for 3.10, 3.11 and 3.12 are now available.

## Hardwood: A New Parser for Apache Parquet

DevFeed: [Hardwood: A New Parser for Apache Parquet](<https://devfeed.tech/articles/hardwood-a-new-parser-for-apache-parquet-18827.md>)

Original publisher: [Read original article](<https://www.morling.dev/blog/hardwood-new-parser-for-apache-parquet/>)

Published: 2026-02-26T12:30:00Z

Content type: release

Language: en

Sources: [Gunnar Morling](<https://devfeed.tech/sources/gunnar-morling.md>)

Topics: [parquet](<https://devfeed.tech/topics/parquet.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [Java](<https://devfeed.tech/topics/java.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [Compression](<https://devfeed.tech/topics/compression.md>), [DuckDB](<https://devfeed.tech/topics/duckdb.md>)

Tags: [apache-parquet](<https://devfeed.tech/tags/apache-parquet.md>), [compression](<https://devfeed.tech/tags/compression.md>), [dependencies](<https://devfeed.tech/tags/dependencies.md>), [java](<https://devfeed.tech/tags/java.md>), [maven-central](<https://devfeed.tech/tags/maven-central.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [parquet](<https://devfeed.tech/tags/parquet.md>), [parsing](<https://devfeed.tech/tags/parsing.md>), [performance](<https://devfeed.tech/tags/performance.md>), [release](<https://devfeed.tech/tags/release.md>)

### AI overview

The article announces Hardwood, an open-source Java 21+ parser for Apache Parquet. It is designed to minimize dependencies and improve parsing performance through a multithreaded decoding pipeline, with optional libraries for Parquet compression algorithms. The article also introduces Maven setup and row-oriented and columnar APIs.

### Source excerpt

Table of Contents Why Hardwood? Hello, Hardwood! Parsing Performance Built With AI, Not By AI What's Next? Today, it's my great pleasure to announce the first public release of Hardwood, a new parser for the Apache Parquet file format, optimized for minimal dependencies and great performance. Hardwood is open-source (Apache License 2.0) and supports Java 21 or newer. You can grab it from Maven Central and start parsing your Parquet files with ease and efficiency.

## Top 10 web hacking techniques of 2025

DevFeed: [Top 10 web hacking techniques of 2025](<https://devfeed.tech/articles/top-10-web-hacking-techniques-of-2025-7712.md>)

Original publisher: [Read original article](<https://portswigger.net/research/top-10-web-hacking-techniques-of-2025>)

Author: James Kettle

Published: 2026-02-05T15:28:08Z

Content type: article

Language: en

Sources: [PortSwigger Research](<https://devfeed.tech/sources/portswigger-research.md>)

Topics: [Security](<https://devfeed.tech/topics/security.md>), [Web](<https://devfeed.tech/topics/web.md>), [vulnerability](<https://devfeed.tech/topics/vulnerability.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [Chrome](<https://devfeed.tech/topics/chrome.md>), [Caching](<https://devfeed.tech/topics/caching.md>), [Tooling](<https://devfeed.tech/topics/tooling.md>)

Tags: [cache](<https://devfeed.tech/tags/cache.md>), [chrome](<https://devfeed.tech/tags/chrome.md>), [community](<https://devfeed.tech/tags/community.md>), [http](<https://devfeed.tech/tags/http.md>), [research](<https://devfeed.tech/tags/research.md>), [security](<https://devfeed.tech/tags/security.md>), [techniques](<https://devfeed.tech/tags/techniques.md>), [vulnerability](<https://devfeed.tech/tags/vulnerability.md>), [web](<https://devfeed.tech/tags/web.md>)

### AI overview

This annual, community-powered selection highlights ten innovative web-hacking techniques from 2025. The supplied excerpts discuss parser differentials, HTTP/2 CONNECT research and tooling, Chrome connection-pool prioritisation used to leak cross-origin redirect hostnames, and internal web cache poisoning.

### Source excerpt

Welcome to the Top 10 Web Hacking Techniques of 2025, the 19th edition of our annual community-powered effort to identify the most innovative must-read web security research published in the last year

## What's new in Svelte: February 2026

DevFeed: [What's new in Svelte: February 2026](<https://devfeed.tech/articles/what-s-new-in-svelte-february-2026-3079.md>)

Original publisher: [Read original article](<https://svelte.dev/blog/whats-new-in-svelte-february-2026>)

Author: Dani Sandoval

Published: 2026-02-01T00:00:00Z

Content type: article

Language: en

Sources: [Svelte blog](<https://devfeed.tech/sources/svelte-blog.md>)

Topics: [Svelte](<https://devfeed.tech/topics/svelte.md>), [releases](<https://devfeed.tech/topics/releases.md>), [changelog](<https://devfeed.tech/topics/changelog.md>), [Vulnerabilities](<https://devfeed.tech/topics/vulnerabilities.md>), [CSS](<https://devfeed.tech/topics/css.md>), [HTML](<https://devfeed.tech/topics/html.md>), [Parser](<https://devfeed.tech/topics/parser.md>), [observability](<https://devfeed.tech/topics/observability.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [Tauri](<https://devfeed.tech/topics/tauri.md>), [Transcodings](<https://devfeed.tech/topics/transcodings.md>)

Tags: [changelog](<https://devfeed.tech/tags/changelog.md>), [conversion](<https://devfeed.tech/tags/conversion.md>), [css](<https://devfeed.tech/tags/css.md>), [developers](<https://devfeed.tech/tags/developers.md>), [docs](<https://devfeed.tech/tags/docs.md>), [ffmpeg](<https://devfeed.tech/tags/ffmpeg.md>), [html](<https://devfeed.tech/tags/html.md>), [observability](<https://devfeed.tech/tags/observability.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [releases](<https://devfeed.tech/tags/releases.md>), [svelte](<https://devfeed.tech/tags/svelte.md>), [tauri](<https://devfeed.tech/tags/tauri.md>), [vulnerabilities](<https://devfeed.tech/tags/vulnerabilities.md>)

### AI overview

Svelte's February 2026 update introduces improvements across Svelte and SvelteKit, including richer select-element customization, an exported CSS parser, Shadow DOM configuration, remote form changes, configurable Node server timeouts, and improved Vercel observability. The article also highlights recent ecosystem vulnerability patches, changelogs, and community projects.

### Source excerpt

This month brings a few new features to Svelte and SvelteKit and quite a few new libraries from around the community. Also, in case you missed it last month, the Svelte maintainers released patches for 5 vulnerabilities across the Svelte ecosystem. So be sure you're up to date by reading the blog post, CVEs affecting the Svelte ecosystem. Now, without further ado, let's dive in... What's new in Svelte & SvelteKit To support newer browsers that allow it, you can now customize <select> elements using CSS and rich HTML content (svelte@5.47.0, Docs, #17429) Svelte's CSS parser is now exported from svelte/compiler as parseCss. It's a partial but lightweight CSS AST parser that is currently being used in SvelteKit (svelte@5.48.0, #17496) A ShadowRootInit object can now be passed to attachShadow() when shadow root is created with a customElement (svelte@5.49.0, Docs, #17088) A breaking change in SvelteKit's remote functions removes buttonProps from experimental remote form functions. Use <button {...myForm.fields.action.as('submit', 'register')}>Register</button> when creating mutliple submit buttons instead (kit@2.50.0, Docs, #15144) Node: The server's keepAliveTimeout and headersTimeout options can now be configured by setting the corresponding environment variable (sveltejs/adapter-node@5.5.0, Docs, #15125) Vercel: Remote function calls can now be found under the /_app/remote route in observability (sveltejs/adapter-vercel@6.3.1, #15098) For a full list of changes - including all the important bugfixes that went into the releases this month - check out the Svelte compiler's CHANGELOG and the SvelteKit / Adapter CHANGELOGs. Community ShowcaseApps & Sites built with Svelte Frame is a high-performance media conversion utility built on the Tauri v2 framework. It provides a native interface for FFmpeg operations, allowing for granular control over video and audio transcoding parameters LogTide is an open-source alternative to Datadog, Splunk, and ELK. Designed for developers

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