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Safer GitOps 🦺, Rust 1.94 🦀, Observability Warehouse 🏗️

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DevOps newsletter featuring Argo CD 3.3, Rust 1.94, and observability warehouse trends.
  • Audience: DevOps professionals, SREs
  • Coverage: GitOps safety, cloud tools, AI in infrastructure
  • Format: News, tutorials, curated resources

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#professional#none#learn_more#sign_up#newsletter#saas#modular#en#us#brand_colors

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TLDR

Together With Harness

TLDR DevOps 2026-03-06

Anthropic, Google, and AWS talk DevOps modernization on one virtual stage (Sponsor)

AI is reshaping DevOps, and the impact goes far beyond code generation. At the DevOps Modernization Summit hosted by Harness, leaders from Anthropic, Google Cloud, United Airlines, AWS, and more will share their perspectives on how to:

✅ Embed AI across CI/CD

✅ Scale without added toil

✅ Govern AI-driven delivery in production

Don't miss the closing keynote with Matthew Skelton (Co-author of Team Topologies, 200K+ copies sold) on reducing cognitive load in the age of agentic development.

Join live on March 11 (10:00 AM PDT / CET).

Register now>

📱

News & Trends

Argo CD 3.3 Brings Safer GitOps Deletions and Smoother Day‑to‑Day Operations (4 minute read)

Argo CD 3.3 enhances GitOps with PreDelete hooks for safe deletions, background OIDC token refresh, optional shallow Git cloning, improved Source Hydrator, granular CRD access, and first-class KEDA support, streamlining operations for large-scale Kubernetes deployments.
Grafana 12.4 release: faster and easier data visualization, observability as code updates, and more (12 minute read)

Grafana 12.4 launched with major updates focused on dashboard management and building speed, including Git Sync (now in public preview) that enables native GitOps workflows for version control and pull requests, and Dynamic dashboards featuring flexible tabs, auto-hide functionality, and auto grid layouts. The release also introduced time-saving features like Suggested dashboards that recommend pre-built templates based on connected data sources, dashboard templates with sample data, and interactive time range controls that let users click and drag to pan and zoom through metrics data.
Announcing Rust 1.94.0 (3 minute read)

Rust 1.94.0 introduces array_windows, which lets slices iterate over fixed-size windows returning arrays instead of dynamically sized slices, improving ergonomics and potential performance. The release also adds Cargo configuration includes, TOML 1.1 support for manifests, several newly stabilized APIs (including LazyCell/LazyLock methods and iterator utilities), and additional constants and intrinsics.
🚀

Opinions & Tutorials

What is the Azure MCP Server? (3 minute read)

Azure MCP Server implements the Model Context Protocol to let AI agents such as GitHub Copilot interact with Azure resources via natural language, supporting tools like Azure CLI, editors including Visual Studio Code, languages such as Python and .NET, and secure access through Entra ID and RBAC.
Zalando Engineering Blog - Why We Ditched Flink Table API Joins: Cutting State by 75% with DataStream Unions (6 minute read)

Zalando engineers slashed their Apache Flink application state size by 75% (from 240GB to 56GB) by ditching Flink SQL's Table API in favor of a custom DataStream API solution that consolidated four chained joins into a single operator. The team's custom MultiStreamJoinProcessor approach cut snapshot times and restart durations dramatically while reducing AWS costs by 13%, though they noted that Flink 2.1's new experimental Multi-Way Join Operator would eventually address similar state amplification issues they encountered in Flink 1.20.
🧑‍💻

Resources & Tools

Your deployment is blocked…where? (Sponsor)

Dependencies buried in Jira. Release status in a spreadsheet. Bottlenecks nobody sees until they blow up in production. Planview's Digital Product Development solution pulls your full delivery pipeline into one place — so you can spot blockers before they become incidents. See how it works in this 7-minute on-demand demo
AReal (GitHub Repo)

AReaL is an open-source asynchronous reinforcement learning system for training large AI reasoning models and agents that achieves 2.77× faster training speeds than traditional synchronous systems. The project includes complete training code, datasets, and pre-trained models ranging from 1.5B to 235B parameters, with their largest model reportedly surpassing GPT-5 on certain benchmarks.
Shannon (GitHub Repo)

Shannon is an open-source AI penetration testing tool that autonomously analyzes web application source code and executes real exploits to identify vulnerabilities like SQL injection and authentication bypass before production deployment. The tool scored 96.15% on the XBOW security benchmark and identified over 20 vulnerabilities in OWASP Juice Shop. There is a commercial "Pro" version that offers integrated SAST, SCA, and secrets scanning that correlates static analysis with live exploitation attempts.
Unified Maintenance centralizes planned maintenance (Resource)

Google Cloud's Unified Maintenance is a centralized dashboard that lets users view and manage planned maintenance events across multiple services, including Compute Engine, GKE, Cloud SQL, Memorystore, AlloyDB, and Looker from a single interface. The new tool provides standardized alerts through Cloud Logging and clearly indicates which maintenance events offer user controls. Google plans to expand support to more services and add folder and organization-level visibility.
🎁

Miscellaneous

Why OpenTelemetry Is Paving the Way for the Rise of the Observability Warehouse (4 minute read)

Widespread OpenTelemetry adoption is driving a shift from siloed observability stacks to a centralized observability warehouse that unifies logs, metrics, and traces on scalable storage, enabling cost-efficient analytics and supporting growing AI-driven data consumption.
Run Pulumi Insights on Your Own Infrastructure (2 minute read)

Pulumi launched customer-managed workflow runners for Pulumi Insights, allowing enterprises to run cloud discovery scans and policy compliance checks on their own infrastructure rather than Pulumi-hosted systems to meet data residency and regulatory requirements. The lightweight agents work with both SaaS and self-hosted Pulumi Cloud installations, polling for tasks over HTTPS without requiring inbound network connectivity, and can use existing runner pools already deployed for Pulumi Deployments.
⚡

Quick Links

Code output up 17%. On-call headcount up…3% (Sponsor)

AI coding is driving a major capacity gap for SREs, and it's set to reach 41% next year. Read the full research by RunLLM →
devenv 2.0: A Fresh Interface to Nix (7 minute read)

devenv 2.0 improves the Nix developer experience with a faster architecture (via a Rust/C FFI backend), incremental evaluation caching, and an interactive terminal UI that shows evaluation/build progress.
Terraform Enterprise 1.2 upgrades workflows, visibility, and brownfield migration (3 minute read)

Terraform Enterprise 1.2 introduces UI-driven search for importing unmanaged resources, GA of the Explorer dashboard for workspace visibility, enhanced readiness and diagnostic APIs for faster node health checks, and Day 2 operations including Terraform Actions and resource replacement from the UI.

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Thanks for reading,
Kunal Desai & Martin Hauskrecht


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