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Rust 1.88 🆕, Ticket-Driven Development 🎫, Improving Apache Iceberg Performance ⏩

TLDR DevOps <dan@tldrnewsletter.com>

June 27, 11:09 am

TLDR DevOps
Rust 1.88.0 introduces let chains for more flexible conditional logic and naked functions for low-level control of assembly ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ 

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TLDR DevOps 2025-06-27

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News & Trends

OpenTofu 1.10: Major Updates for Modern IaC (9 minute read)

OpenTofu 1.10 introduces long-requested features like OCI registry support, native S3 backend locking, advanced resource migration, and improved PostgreSQL state management, reinforcing its position as a robust, open-source infrastructure-as-code tool. Now part of the Cloud Native Computing Foundation, OpenTofu is gaining rapid adoption with nearly 10 million GitHub downloads, 25,000 stars, and a revitalized governance model that strengthens its community-driven future.
Containers are available in public beta for simple, global, and programmable compute (6 minute read)

Cloudflare Containers are now in beta for all paid users, enabling powerful, flexible workloads to run alongside Workers with a familiar development workflow and tight integration across the Cloudflare Developer Platform. Containers spin up globally on demand, support custom logic and observability, and offer transparent, usage-based pricing with upcoming features like global autoscaling and enhanced intercommunication between Containers and Workers.
Announcing Rust 1.88.0 (4 minute read)

Rust 1.88.0 introduces let chains for more flexible conditional logic (available in the 2024 edition), naked functions for low-level control of assembly, boolean config predicates for clearer conditional compilation, and automatic cache cleanup in Cargo to reduce disk usage. It also stabilizes several APIs and const contexts, and demotes the i686-pc-windows-gnu target to Tier 2.
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Opinions & Tutorials

Who is Going to Pay For This? (7 minute read)

Observability tools often appear inexpensive per unit of data but can become extremely costly at production scale due to high volume telemetry ingestion and storage. OpenTelemetry reduces vendor lock-in but increases data size and costs, highlighting the need for careful planning on what telemetry to collect and how it will be used to control expenses.
Simplifying Network Management with Cilium's BGP Auto-Discovery (6 minute read)

Cilium's BGP implementation has been updated with a BGP Auto-Discovery feature that simplifies network automation in large Kubernetes environments by allowing Cilium's BGP control plane to automatically discover BGP peers without needing explicit peer IP addresses.
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Resources & Tools

Gartner's Recommendations for Controlling Observability Spend (Sponsor)

Gartner analysts predict that 80% of enterprises that fail to implement observability cost controls will overspend by more than 50% in the next two years. This report covers how to control observability costs, prioritize spending, and rationalize observability tools. Get your free copy from Chronosphere
GKE workload scheduling: Strategies for when resources get tight (6 minute read)

GKE enables efficient workload scheduling using a combination of autoscaling tools, workload configurations, and compute classes, but effective deployment still requires careful planning around cost, performance, flexibility, and capacity constraints. Solutions like workload priorities, placeholder pods, custom compute classes, and multi-cluster orchestration help platform engineers navigate scheduling challenges and optimize resource allocation across regions.
Gemini CLI (GitHub Repo)

The Gemini CLI, a command-line AI workflow tool, allows users to interact with the Gemini AI model directly from their terminal.
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Miscellaneous

Introducing the DataFrame API for Table-Valued Functions (2 minute read)

The DataFrame API for Table-Valued Functions (TVFs) in Databricks Runtime (DBR) 16.1 and above allows users to invoke TVFs directly within DataFrame operations, simplifying transformations.
Ticket-Driven Development: The Fastest Way to Go Nowhere (3 minute read)

Ticket-driven development prioritizes constant activity over thoughtful progress, reducing developers to task-completers instead of problem-solvers and eroding code quality, team morale, and long-term effectiveness. To escape this cycle, teams must reclaim autonomy, ask why, improve code incrementally, and remember that meaningful delivery means moving with purpose—not just moving fast.

Quick Links

New: Improve Apache Iceberg query performance in Amazon S3 with sort and z-order compaction (6 minute read)

Amazon S3 now supports sort and z-order compaction strategies, in addition to the default binpack compaction, to improve Apache Iceberg query performance in Amazon S3 Tables and general purpose S3 buckets.
Image Compatibility In Cloud Native Environments (5 minute read)

Kubernetes Node Feature Discovery (NFD) has implemented a specification for image compatibility metadata, enabling users to match containers to nodes based on hardware and software features.
Amazon FSx for OpenZFS now supports Amazon S3 access without any data movement (5 minute read)

Amazon FSx for OpenZFS file systems can now have Amazon S3 Access Points attached, which allows file data to be accessed as if it were in Amazon S3.

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Thanks for reading,
Kunal Desai & Martin Hauskrecht


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