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📰 Dev.to · daniel jeong

43 articles · Updated every 3 hours · View all reads

All Articles 92,217Blog Posts 110,362Tech Tutorials 23,174Research Papers 19,235News 14,893 ⚡ AI Lessons
Crossplane v2.3 Deep Dive — High-Fidelity Render Engine, Provider Deletion Protection, Reconciliation Annotations, and CLI Separation
Dev.to · daniel jeong 3w ago
Crossplane v2.3 Deep Dive — High-Fidelity Render Engine, Provider Deletion Protection, Reconciliation Annotations, and CLI Separation
On **May 21, 2026**, the Crossplane maintainers shipped **v2.3.0**, the quarterly release that — for the first time in the v2 series — turned the "pro
Spinnaker 2026.1.0 Emergency Patch — CVE-2026-32613 Echo SpEL RCE + CVE-2026-32604 Clouddriver Gitrepo Shell Injection
Dev.to · daniel jeong 3w ago
Spinnaker 2026.1.0 Emergency Patch — CVE-2026-32613 Echo SpEL RCE + CVE-2026-32604 Clouddriver Gitrepo Shell Injection
On April 20, 2026, the Spinnaker security team simultaneously disclosed two CVSS 9.9 Critical remote code execution vulnerabilities. The first is **CV
PostgreSQL 18.4 Deep Dive — 11 CVE Patches, io_uring Async I/O (3x Faster), OAuth 2.0, UUIDv7, and Temporal Constraints
Dev.to · daniel jeong 1mo ago
PostgreSQL 18.4 Deep Dive — 11 CVE Patches, io_uring Async I/O (3x Faster), OAuth 2.0, UUIDv7, and Temporal Constraints
On May 14, 2026, the PostgreSQL Global Development Group released **18.4** alongside 17.10, 16.14, 15.18, and 14.23. On the surface it looks like the
Istio 1.30 Deep Dive — Agentgateway, Ambient Multicluster, TrafficExtension API, and 4 CVE Patches (JWKS RSA Leak, XDS Debug Auth)
Dev.to · daniel jeong 1mo ago
Istio 1.30 Deep Dive — Agentgateway, Ambient Multicluster, TrafficExtension API, and 4 CVE Patches (JWKS RSA Leak, XDS Debug Auth)
On May 18, 2026, the Istio community shipped **Istio 1.30.0** alongside backports 1.29.3 and 1.28.7. On the surface it's a regular quarterly release,
Bun 1.3 + Anthropic Rust Rewrite — Bun.SQL, Bun.Image, HTTP/3 QUIC, and a 6-Day 960K-Line Zig Rust Port
Dev.to · daniel jeong ☁️ DevOps & Cloud ⚡ AI Lesson 1mo ago
Bun 1.3 + Anthropic Rust Rewrite — Bun.SQL, Bun.Image, HTTP/3 QUIC, and a 6-Day 960K-Line Zig Rust Port
On **May 14, 2026**, the Bun team — now part of Anthropic — merged a pull request that ported **roughly 960,000 lines of Zig code to Rust**. Work bega
CVE-2026-31431 'Copy Fail' Deep Dive — Linux Page-Cache Bug and AF_ALG Kubernetes Container Escape
Dev.to · daniel jeong 1mo ago
CVE-2026-31431 'Copy Fail' Deep Dive — Linux Page-Cache Bug and AF_ALG Kubernetes Container Escape
On April 29, 2026, Theori researcher Taeyang Lee disclosed **CVE-2026-31431 "Copy Fail"** — on the surface another Linux kernel LPE (CVSS 7.8), but in
Argo CD 3.4 Deep Dive — Cluster-Scoped Pause Reconciliation, Helm Value Globs, App List Filters, and Helm 3.19 Kubernetes-Version Label Migration
Dev.to · daniel jeong 1mo ago
Argo CD 3.4 Deep Dive — Cluster-Scoped Pause Reconciliation, Helm Value Globs, App List Filters, and Helm 3.19 Kubernetes-Version Label Migration
Argo CD 3.4 just went GA in early May 2026. We break down the cluster-scoped Pause Reconciliation annotation, Helm valueFiles wildcard glob patterns, Annotation
OpenTelemetry Profiles Public Alpha: eBPF Fourth Signal, Collector v0.151.0 and OpAMP Fleet Management for 2026
Dev.to · daniel jeong 1mo ago
OpenTelemetry Profiles Public Alpha: eBPF Fourth Signal, Collector v0.151.0 and OpAMP Fleet Management for 2026
On March 26, 2026 the CNCF announced **the Public Alpha of the OpenTelemetry Profiles signal**. After metrics, traces, and logs, **continuous profilin
Falco 0.43 Deep Dive — Legacy eBPF, gVisor, gRPC Deprecation and Cosign v3 Bundles Redefining 2026 Kubernetes Runtime Security
Dev.to · daniel jeong 1mo ago
Falco 0.43 Deep Dive — Legacy eBPF, gVisor, gRPC Deprecation and Cosign v3 Bundles Redefining 2026 Kubernetes Runtime Security
On January 26, 2026, the CNCF Graduated project **Falco** shipped 0.43.0, followed by patch release 0.43.1 on April 9. The previous minor 0.42.0 had a
Amazon EKS Hybrid Nodes Gateway Deep Dive: VXLAN, Cilium VTEP, and Lease-Based Leader Election Redefining Hybrid Kubernetes Networking
Dev.to · daniel jeong 1mo ago
Amazon EKS Hybrid Nodes Gateway Deep Dive: VXLAN, Cilium VTEP, and Lease-Based Leader Election Redefining Hybrid Kubernetes Networking
On April 28, 2026, alongside the OpenAI–Bedrock partnership announcement at the **What's Next with AWS 2026** keynote, AWS quietly delivered one of th
AWS Lambda S3 Files — The Complete Guide: EFS-Backed S3 Mounts Are Rewriting Serverless Architecture and the Agentic AI Workload Standard
Dev.to · daniel jeong ⚡ AI Lesson 1mo ago
AWS Lambda S3 Files — The Complete Guide: EFS-Backed S3 Mounts Are Rewriting Serverless Architecture and the Agentic AI Workload Standard
Lambda S3 Files (GA April 21, 2026) lets Lambda functions mount S3 buckets as POSIX file systems, dissolving the /tmp 10GB ceiling and the forced statelessness
OpenTelemetry eBPF Instrumentation (OBI) — The Complete Guide: KubeCon EU 2026 Beta Launch, Zero-Code Observability, and the 1.0 GA Roadmap
Dev.to · daniel jeong 1mo ago
OpenTelemetry eBPF Instrumentation (OBI) — The Complete Guide: KubeCon EU 2026 Beta Launch, Zero-Code Observability, and the 1.0 GA Roadmap
> **Published on the ManoIT Tech Blog (Korean original).** On April 2026 at KubeCon + CloudNativeCon Europe in Amsterdam, Splunk formally announced th
Terraform 1.14 — The Complete Guide to List Resources (.tfquery.hcl), Actions Block, and `terraform query`: IaC's First Paradigm Shift in 5 Years
Dev.to · daniel jeong 2mo ago
Terraform 1.14 — The Complete Guide to List Resources (.tfquery.hcl), Actions Block, and `terraform query`: IaC's First Paradigm Shift in 5 Years
Terraform 1.14 (Nov 2025 GA, patched to 1.14.9 in April 2026) introduces List Resources for bulk discovery/import and Actions Block with lifecycle triggers and
Flux 2.8 GA — Helm v4 Server-Side Apply, MTTR Cuts, CEL Health Checks, and the 2026 GitOps Standard
Dev.to · daniel jeong 2mo ago
Flux 2.8 GA — Helm v4 Server-Side Apply, MTTR Cuts, CEL Health Checks, and the 2026 GitOps Standard
> **Published on ManoIT Tech Blog (Korean original).** On February 24, 2026 the Flux project shipped v2.8.0 GA. This is not a minor release — Helm v4
Claude Managed Agents — The Complete Guide: Brain/Hands/Session Architecture, MCP Connectors, and Multi-Agent Orchestration
Dev.to · daniel jeong 2mo ago
Claude Managed Agents — The Complete Guide: Brain/Hands/Session Architecture, MCP Connectors, and Multi-Agent Orchestration
> **Published on ManoIT Tech Blog (Korean original).** On April 8, 2026 Anthropic launched Claude Managed Agents — a fully hosted agent harness that h
Complete Guide to Kubernetes 1.36: DRA GA, OCI VolumeSource, MutatingAdmissionPolicy, and Production Upgrade Checklist
Dev.to · daniel jeong 2mo ago
Complete Guide to Kubernetes 1.36: DRA GA, OCI VolumeSource, MutatingAdmissionPolicy, and Production Upgrade Checklist
Kubernetes v1.36 ships on April 22, 2026. This release brings **Dynamic Resource Allocation (DRA) to GA**, **OCI VolumeSource to Stable**, and **Mutat
Complete Guide to Valkey 8.1 vs Redis 8.0 — The 2026 In-Memory Datastore Fork War and Production Migration Strategy
Dev.to · daniel jeong 📣 Digital Marketing & Growth ⚡ AI Lesson 2mo ago
Complete Guide to Valkey 8.1 vs Redis 8.0 — The 2026 In-Memory Datastore Fork War and Production Migration Strategy
In March 2024, Redis Ltd. switched its open-source license from BSD-3-Clause to SSPL/RSALv2 dual licensing, sending shockwaves through the open-source
CVE-2026-33105 AKS CVSS 10.0 Emergency Analysis and Complete Guide to Managed Kubernetes Zero Trust Security
Dev.to · daniel jeong 2mo ago
CVE-2026-33105 AKS CVSS 10.0 Emergency Analysis and Complete Guide to Managed Kubernetes Zero Trust Security
On April 3, 2026, Microsoft disclosed **CVE-2026-33105** — a **CVSS 10.0 (Critical)** privilege escalation vulnerability in Azure Kubernetes Service (
Complete Guide to GitHub Actions 2026 Security Roadmap — Dependency Locking, Native Egress Firewall, and Scoped Secrets
Dev.to · daniel jeong 2mo ago
Complete Guide to GitHub Actions 2026 Security Roadmap — Dependency Locking, Native Egress Firewall, and Scoped Secrets
In March 2025, the **tj-actions/changed-files** supply chain attack compromised **over 23,000 repositories**. Attackers stole a PAT from reviewdog/act
Complete Guide to API Gateway Design Patterns in 2026 — Multi-Protocol Strategy and the Rise of MCP Gateways
Dev.to · daniel jeong 2mo ago
Complete Guide to API Gateway Design Patterns in 2026 — Multi-Protocol Strategy and the Rise of MCP Gateways
In 2026, the question in API architecture has shifted from "which protocol should we choose?" to "how do we manage multiple protocols together?" REST