InfoQ Homepage Architecture & Design Content on InfoQ
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DuckLake 1.0: Data Lake Format with SQL Catalog Metadata
DuckDB Labs recently released DuckLake 1.0, a data lake format that stores table metadata in a SQL database rather than across many files in object storage. The first implementation is available as a DuckDB extension and includes catalog-stored small updates, improved sorting and partitioning options, and compatibility with Iceberg-style data features.
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JobRunr Introduces ClawRunr, an Open-Source Java AI Agent
JobRunr has introduced ClawRunr, an open-source Java AI agent for scheduled, recurring, and one-off background tasks. Formerly JavaClaw, it runs on users' hardware and combines conversational interaction with persistent task execution, MCP tools, browser automation, and web, Telegram, and Discord channels, while using JobRunr for scheduling, retries, and monitoring.
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Confluent Moves Schema IDs to Kafka Headers to Simplify Schema Governance
Confluent introduces a new approach in Apache Kafka that moves schema IDs from message payloads to record headers, aiming to simplify schema governance and evolution. The update integrates with Schema Registry, improves compatibility across serialization formats, and reduces coupling between data and metadata in event-driven architectures.
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Cloudflare Announces Agent Memory, a Managed Persistent Memory Service for AI Agents
Cloudflare announced Agent Memory in private beta, a managed service that extracts structured memories from AI agent conversations and retrieves them on demand using five-channel parallel retrieval with Reciprocal Rank Fusion. Shared memory profiles let teams of agents access common knowledge. Competitors include Mem0, Zep, LangMem, and Letta.
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Meta's Approach to Migrating their Systems to Post-Quantum Cryptography
Meta has already begun preparing for the threats posed by quantum computing and migrating its systems to post-quantum cryptography, a complex process that will take multiple years to complete. In a recent article, Meta researchers outline their strategy and share key lessons learned along the way.
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Dropbox Redesigns Compaction to Reclaim Space from Underfilled Storage Volumes
Dropbox recently explained how it improved storage efficiency in Magic Pocket, the company's internal immutable blob store for storing user files at scale, by redesigning compaction strategies to reclaim space from severely underfilled storage volumes. The system now periodically reorganizes valid data into new volumes, allowing old, partially used ones to be cleared and reused.
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Netflix Scales "Human Infrastructure" to Manage Global Live Operations
Netflix has introduced a "human infrastructure" layer to manage live broadcasts at scale. Using a low-latency "telemetry hot path" and a Live Operations Centre, the company now balances automated scaling with human oversight. This shift, which mirrors strategies at AWS and Disney+, focuses on maintaining reliability through expert intervention during high-concurrency global events.
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AWS Interconnect Reaches General Availability with Managed Multicloud and Last-Mile Connectivity
AWS Interconnect reached general availability, offering managed private Layer 3 connections to Google Cloud and a last-mile capability via Lumen. Azure and OCI support is planned for later in 2026. AWS published the underlying specification on GitHub under Apache 2.0, which Forrester analysts read as a play to set a de facto standard for multicloud connectivity.
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Amazon CloudWatch Introduces OpenTelemetry Metrics Support in Preview
AWS has introduced the public preview of OpenTelemetry metrics support in Amazon CloudWatch. This update allows developers to send metrics directly to CloudWatch using the OpenTelemetry protocol and view them alongside existing AWS service metrics.
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How Slack Manages Context in Long-Running Multi-agent Systems
To sustain productivity in long-running agent systems, Slack engineers moved away from accumulating chat logs and started using structured memory, validation, and distilled truth to maintain coherence and accuracy of long-running agent systems.
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Java News Roundup: OpenJDK, Oracle Critical Patches, Open Liberty, Testcontainers, IntelliJ IDEA
This week's Java roundup for April 20th, 2026, features news highlighting: updates on OpenJDK JEPs; JDK 27 release schedule finalized; the Oracle Critical Patch Updates for April 2026 and corresponding patch updates from BellSoft and Azul; the April 2026 edition of Open Liberty; and maintenance releases of Testcontainers, Multik and IntelliJ IDEA.
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QCon San Francisco 2026: 12 Tracks Announced
The 12 tracks for QCon San Francisco 2026 (November 16-20) are now live. Four tracks cover AI in production. The other eight cover the rest of what senior engineering still demands: distributed systems, architecture teardowns, resilience, platform internals, API design, and Staff+ leadership. Early bird pricing runs until May 12th.
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Uber Migrates 75,000+ Test Classes from Junit 4 to Junit 5 Using Automated Code Transformation
Uber engineers migrated over 75,000 test classes from JUnit 4 to JUnit 5 using automated code transformation with OpenRewrite and internal orchestration. By enabling the JUnit Platform for dual execution with Bazel and validating changes through CI, the team modernized testing infrastructure while maintaining correctness at monorepo scale.
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Spring News Roundup: First Release Candidates of Boot, Security, Integration, Modulith, AMQP
There was a flurry of activity in the Spring ecosystem during the week of April 20th, 2026, highlighting the first release candidates of: Spring Boot, Spring Security, Spring Integration, Spring Modulith, Spring AMQP, Spring for Apache Kafka and Spring Vault.
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AWS Ends WorkMail and Moves App Runner to Maintenance Mode
AWS has recently announced that WorkMail will be discontinued and that App Runner will stop accepting new customers and move into maintenance mode. Several other less popular services and features are also entering maintenance or sunset phases, triggering concern and debate across the AWS community.