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How Cloudflare responded to the “Copy Fail” Linux vulnerability

When a critical Linux kernel privilege escalation was publicly disclosed, Cloudflare's security and engineering teams detected, investigated, and mitigated the threat across our global fleet, confirmi...

Building for the future

This afternoon, we sent the following email to our global team. One of our core values at Cloudflare is transparency, and we believe it's important that you hear this directly from us because it’s a m...

When "idle" isn't idle: how a Linux kernel optimization became a QUIC bug

We investigated a bug where CUBIC's congestion window became pinned at its minimum floor, causing a performance to plummet. The fix involved correctly measuring idle periods to distinguish RTT wait ti...

Browser Run: now running on Cloudflare Containers, it’s faster and more scalable

We’ve enabled higher usage limits, faster performance, better reliability, and increased shipping velocity for our Browser Run product by rebuilding on top of Cloudflare’s Containers. Here’s how....

Our billing pipeline was suddenly slow. The culprit was a hidden bottleneck in ClickHouse

When a partitioning change to our petabyte-scale ClickHouse cluster caused critical billing jobs to stall, standard metrics showed no obvious errors. This post explores how we identified severe lock c...

A new personal finance experience in ChatGPT

Preview a new personal finance experience in ChatGPT for Pro users in the U.S. Securely connect your financial accounts and get AI-powered insights and guidance grounded in your financial context, goa...

How data science teams use Codex

See how data science teams can use Codex to build root-cause briefs, impact readouts, KPI memos, scoped analyses, and dashboard specs from real work inputs....

Databricks brings GPT-5.5 to enterprise agent workflows

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

How business operations teams use Codex

See how business operations teams can use Codex to create initiative briefs, strategy updates, leadership decision packets, progress updates, and more from real work inputs....

OpenAI and Malta partner to bring ChatGPT Plus to all citizens

OpenAI and Malta partner to expand AI access, offering ChatGPT Plus and training to help citizens build practical AI skills and use AI responsibly....

Amazon RDS for PostgreSQL announces Extended Support minor versions 11.22-rds.20260224, 12.22-rds.20260224, and 13.23-rds.20260224

Amazon Relational Database Service (RDS) for PostgreSQL announces Amazon RDS Extended Support minor versions 11.22-rds.20260224, 12.22-rds.20260...

Amazon Connect Cases now lets you edit related items and delete cases from the agent workspace

Amazon Connect Cases now supports editing and deleting related items, and deleting cases directly from the agent workspace without administrator help. Agents can update comments, unlink contacts as...

AWS Partner Central agents now accelerates opportunity creation

Today, AWS announces that the AWS Partner Central agents now accelerate opportunity creation through natural language conversation. AWS News

Amazon EMR Serverless is now available in additional AWS Regions

Amazon EMR Serverless is now generally available in six additional AWS Regions - Asia Pacific (Hyderabad), Asia Pacific (Malaysia), Asia Pacific (New Zealand), Asia Pacific (Taipei), Asia Pacific (...

Amazon CloudWatch Logs announces increased query result limits

Amazon CloudWatch Logs now supports retrieving up to 100,000 results using the Logs Insights query language. Customers can specify the limit in their query using the LIMIT command.

Pre...

Building a safe, effective sandbox to enable Codex on Windows

Learn how OpenAI built a secure sandbox for Codex on Windows, enabling safe, efficient coding agents with controlled file access and network restrictions....

Helping ChatGPT better recognize context in sensitive conversations

Learn how new ChatGPT safety updates improve context awareness in sensitive conversations, helping detect risk over time and respond more safely....

Work with Codex from anywhere

Use Codex anywhere with the ChatGPT mobile app. Monitor, steer, and approve coding tasks in real time across devices and remote environments....

Sea's View on the Future of Agentic Software Development with Codex

Sea Limited's CPO explains why the company is deploying Codex across engineering teams to accelerate AI-native software development in Asia....

AWS Organizations now supports higher quotas for service control policies (SCPs)

AWS Organizations now supports higher quotas for service control policies (SCPs). The maximum number of SCPs that can be attached to a single nod...

Amazon Managed Grafana now supports in-place upgrade to Grafana version 12.4

Amazon Managed Grafana now supports in-place upgrade from Grafana version 10.4 to 12.4. You can upgrade with just a few clicks from the AWS Console or via AWS SDK...

How finance teams use Codex

See how finance teams can use Codex to build MBRs, reporting packs, variance bridges, model checks, and planning scenarios from real work inputs....

Our response to the TanStack npm supply chain attack

OpenAI details its response to the TanStack “Mini Shai-Hulud” supply chain attack, outlines protections taken to secure systems and signing certificates, and explains why macOS users must update OpenA...

AWS Transform agents now available in Kiro, Claude, Cursor, and Codex

Today, AWS announces that the AWS Transform agents — built on decades of AWS migration and modernization experience — are now accessible through a Kiro power, agent plugins, and via the AWS Transfo...

SageMaker AI now supports serverless model customization for Qwen3.6

Amazon SageMaker AI now supports serverless model customization for Qwen3.6 27B parameter model using supervised fine-tuning (SFT) and reinforcement fine-tuning (RFT). Qwen3.6 is a popular open-wei...

Announcing general availability of Amazon EC2 M3 Ultra Mac instances

Amazon Web Services announces general availability of Amazon EC2 M3 Ultra Mac instances, powered by the latest Mac Studio hardware. Amazon EC2 M3 Ultra Mac instances are the next-generati...

Amazon CloudFront announces Passthrough Mode for mutual TLS (Viewer)

Amazon CloudFront now supports passthrough mode for viewer mutual TLS (mTLS) authentication, enabling customers to forward client certificates to their origin for validation without requiring Cloud...

Amazon Bedrock Introduces Advanced Prompt Optimization and Migration Tool

Customers spend days to weeks optimizing prompts and evaluating responses when they want to migrate to a new model or just get better performance out of their current model. The...

When DNSSEC goes wrong: how we responded to the .de TLD outage

On May 5, 2026, DENIC published broken DNSSEC signatures for the .de TLD, making millions of domains unreachable. Here's what 1.1.1.1 saw, how serve stale cushioned the impact, and how we restored res...

How NVIDIA engineers and researchers build with Codex

Teams use Codex with GPT-5.5 to ship production systems and turn research ideas into runnable experiments....

What Parameter Golf taught us about AI-assisted research

Parameter Golf brought together 1,000+ participants and 2,000+ submissions to explore AI-assisted machine learning research, coding agents, quantization, and novel model design under strict constraint...

AutoScout24 scales engineering with AI-powered workflows

Learn how AutoScout24 Group uses Codex and ChatGPT to speed development cycles, improve code quality, and expand AI adoption....

AWS Security Agent now supports full repository code reviews

Today, AWS announces the release of full repository code review

Amazon EventBridge Scheduler adds 619 new SDK API actions, including Lambda Managed Instances

Amazon EventBridge Scheduler expands its AWS SDK integrations with 13 additional services and 619 new API actions across new and existing AWS services, including AWS Lambda Managed Instances. You c...

AWS Lambda supports scheduled scaling for functions on Lambda Managed Instances

AWS Lambda now supports scheduled scaling for functions running on Lambda Managed Instances, using Amazon EventBridge Scheduler. This capability allows you to define one-time or recurring schedules...

Amazon RDS for Oracle now supports M8i and R8i instances with Oracle SE2 License Included

Amazon RDS for Oracle now offers M8i and R8i instances with Oracle Database Standard Edition 2 (SE2) with the License Included (LI). M8i and R8i ins...

Amazon FSx for OpenZFS now supports creating Multi-AZ file systems in shared VPCs

Amazon FSx for OpenZFS now allows you to create Multi-AZ file systems in shared VPCs within your AWS organization, making it easier for you&nb...