Developer changelog updates for January 2026

Summary

Added new features including mock API for node:test, FileHandle.readv, JSR support for @jsr scope, external socket‑based cron, V8 14.5 upgrade, and inspect publish UID flag for VSCode debugging.

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Release Bun v1.3.8 for Windows with upgrade instructions.

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Fixed memory leak in span map and ensured LRU cache items have a minimum size to prevent unbounded growth.

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Imported from changelog source; review and generate a concise summary before publishing.

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Introduces an open beta for building dashboard widgets directly from Metrics queries.

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Fix nil pointer dereference crash during terraform init when backend returns an error

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Updated agents to be built with Go 1.25.6.

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Backported bug fixes from the canary release.

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Fix numerous bugs across the runtime, including Intel‑Mac cross‑compilation for Deno, a fetch file‑descriptor leak, bundle name clashes and esbuild cleanup issues, and several Node compatibility fixes (process.argv, stdin TTY, crypto cip...

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Added missing dashboard scope checks and required sign‑in for avatars, improving security.

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Seer AI debugger now detects issues during pull request reviews

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Add missing dashboard scope check to API and require sign‑in for Avatar, tightening security;

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Added missing scope check for dashboard API calls and enforced sign‑in for avatar requests, improving security.

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Added missing scope check to the dashboard API.

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Add missing scope check to the dashboard API

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Adds Windows installation instructions for Bun v1.3.7

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Security update addressing CVE-2025-59471, CVE-2025-59472, and CVE-2026-23864.

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Addresses a critical security vulnerability.

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Fix security vulnerabilities identified in CVE-2025-59471 and CVE-2025-59472

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Imported from changelog source; review and generate a concise summary before publishing.

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Imported from changelog source; review and generate a concise summary before publishing.

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Applied security patch addressing identified vulnerabilities.

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Security patch released to address a vulnerability.

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Addresses security vulnerabilities in the application.

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Added LIEF dependency and tooling, introduced ignore option for fs.watch, enabled SQLite defensive mode by default, and added direct SEA build support with Node.js binary.

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Added DoS mitigation layers to Server Actions

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Add DoS mitigations to Server Actions to reduce attack surface.

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Add additional DoS mitigations to Server Actions

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CLI now shows a progress bar for TSGO downloads and inspector gains bare host/port support and a new /ws/events endpoint for watcher restarts.

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Added subagents, skills, and image generation capabilities for agents

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Added a `compilerBuild` option (fast or small) allowing users to choose between speed‑optimized or size‑optimized query compiler engines.

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Added many new capabilities: infrastructure mode for end‑user devices, Kafka Data Streams intake, APM edge mode, enhanced secret backend (Kubernetes, Docker, file secrets), system battery health checks, Azure IMDS version config, discove...

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Added metric sending support to Ruby, Rails, Java, Spring, and Spring Boot SDKs.

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Backports bug fixes without including pending canary features

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Added new stable APIs and utilities (require module handling, http.setGlobalProxyFromEnv, convertProcessSignalToExitCode, subpath imports with leading slash, V8.queryObjects)

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Backported key bug fixes to the stable release.

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Introduce CLI agent modes that bring popular editor features to the Cursor CLI

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Added new APIs: canvas now supports GIF/WebP in createImageBitmap, performance resource timing controls, and readable web streams for file handles.

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Introduced GitLab Duo Agent Platform and multiple agents (Planner, Security Analyst) now generally available with governance controls and per‑group enable/disable settings

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Update Turbopack's SWC core to v50.2.3, fixing crashes with MDX files containing multibyte characters

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Implemented multiple CVE fixes: added TLSSocket default error handler, network checks on pipe/wrap connect, stricter symlink read/write permissions, disabled futimes under permission model, rethrown stack overflow exceptions in async hoo...

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Add TLSSocket default error handler (CVE‑2025‑59465) and route TLS callback exceptions through error handlers (CVE‑2026‑21637).

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Imported from changelog source; review and generate a concise summary before publishing.

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Fixed multiple CVE vulnerabilities (disabled futimes with permission model, added TLSSocket default error handler, required full read/write for symlink APIs, rethrown stack overflow in async hooks, removed zero‑fill toggle from unsafe bu...

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Fixed Prisma Accelerate support issue in edge runtime configurations when the @prisma/client/edge entrypoint was not used.

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Bun v1.3.6 is now available for Windows installation and upgrade

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Fixed fatal concurrent map access errors in system probe when evaluating SSH monitoring security rules.

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Added new CLI controls for models, MCP management, rules, and commands

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Critical Netflow bug in 7.74.0 (missing flushConfig) can cause 2‑30× flush frequency and billing spikes; upgrade to 7.75.1+.

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Added ability to view attribute breakdowns for spans without manual queries

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Fix compilation with unstable npm lazy caching and various Node extension bugs (keepAlive reuse, sqlite session errors, Buffer.copy TypedArray support, inspector.url, numbered positional parameters).