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AI Dev Stack

Automated developer news — changelogs, deep dives, and workflow updates for AI coding tools.

Copilot SDK v0.2.0: Fine-Grained Prompts & OpenTelemetry

Copilot SDK v0.2.0: Fine-Grained Prompts & OpenTelemetry

Copilot SDK v0.2.0 ships fine-grained system prompt customization, OpenTelemetry tracing across all SDKs, blob attachments, and significant Python API overhaul. Breaking changes in Python and Go.

Copilot SDK v0.2.1-preview.0: Commands & Blob Attachments

Copilot SDK v0.2.1-preview.0: Commands & Blob Attachments

Node.js gets commands and UI prompts, all SDKs gain custom model listing, and blob attachments let you send images without disk writes. Go has breaking enum and struct naming changes.

Copilot SDK v0.2.1-preview.1: Ephemeral Events Fix

Copilot SDK v0.2.1-preview.1: Ephemeral Events Fix

Copilot SDK v0.2.1-preview.1 makes ephemeral events truly ephemeral—no longer returned by getMessages(). Use live listeners instead. Breaking change for session idle detection.

Copilot SDK v0.2.1-preview.2: Elicitation & Metadata

Copilot SDK v0.2.1-preview.2: Elicitation & Metadata

Copilot SDK v0.2.1-preview.2 adds elicitation request handling for Node, cross-SDK session metadata lookups, and Python async context managers. Fixes tool result serialization bugs.

Copilot Chat v0.43.2026040301: MCP & Claude 4.6

Copilot Chat v0.43.2026040301: MCP & Claude 4.6

MCP Insiders mode now configurable, Claude 4.6 gets optimized prompts by default, plus session tracking improvements and API updates.

Copilot Chat v0.43: MCP Insiders & Claude 4.6 Defaults

Copilot Chat v0.43: MCP Insiders & Claude 4.6 Defaults

Copilot Chat v0.43 adds MCP Insiders configuration, makes Claude 4.6 prompts the default, and improves session tracking with new system-initiated flags.

Claude Code 2.1.91: MCP Persistence, Shell Execution Control

Claude Code 2.1.91: MCP Persistence, Shell Execution Control

MCP results now persist up to 500K chars, shell execution can be disabled, and transcript resume no longer loses history. Plus fixes for plan mode in remote sessions and terminal editing.