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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.0.71

5 entries read diff v2.0.70 → v2.0.71 Markdown

This release introduces a new keyboard shortcut (alt+t / option+t) for toggling thinking mode directly from the prompt input, along with improved prompt suggestion handling that allows accepting suggestions by pressing Enter on an empty prompt. The internal MCP SDK has also been upgraded with protocol version 2025-11-25 support.

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Thinking Mode Toggle Hotkey#

What

New keyboard shortcut to toggle extended thinking mode on/off directly from the prompt input.

Usage

Press alt+t (or option+t on macOS) while focused on the prompt input to open the thinking toggle picker.

Details
  • Opens a dedicated picker UI showing "Enabled" and "Disabled" options
  • Displays a warning when changing mid-conversation: "Changing mid-conversation may reduce quality. For best results, set this at the start of a session."
  • Logs telemetry event tengu_thinking_toggled_hotkey for tracking usage
  • Press Enter to confirm selection, Esc to cancel
Evidence

$r2() at line 464580 (ThinkingPicker component, contains "Toggle thinking mode" and "Enable or disable thinking for this session") and HsA at line 179809 (hotkey definition, displayText: "alt+t")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

Accept Prompt Suggestion with Enter#

What

Pressing Enter on an empty prompt input now automatically accepts and submits a visible prompt suggestion.

Usage
  1. When Claude displays a prompt suggestion (gray placeholder text)
  2. Press Enter without typing anything
  3. The suggestion is automatically accepted and submitted
Details
  • Only triggers when a prompt suggestion is visible (promptSuggestion.shownAt > 0)
  • Calls markAccepted() before submission for telemetry tracking
  • Previously, pressing Enter on an empty prompt would do nothing
Evidence

Submit handler at line 32049-32056 (input handler, checks t.trim() === "" && JA.promptSuggestion.text && JA.promptSuggestion.shownAt > 0)

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

Improved Token Counting for Custom System Prompts#

The /context command now accurately accounts for custom system prompts and appended system prompts when calculating token usage. Previously, the system prompt token count didn't consider SDK users' custom prompts.

Evidence

NK0() at line 384355 (context calculation, now uses ySA() with customSystemPrompt and appendSystemPrompt parameters)

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Enhanced Teleportation Telemetry#

Session teleportation (resume from web) now tracks whether the first message after resuming succeeds or fails, helping diagnose issues with session transfers.

Evidence

obA() at line 2424 (sets teleportedSessionInfo.isTeleported and hasLoggedFirstMessage), with events tengu_teleport_first_message_success and tengu_teleport_first_message_error

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

MCP SDK Protocol Update#

The MCP SDK has been updated to support protocol version 2025-11-25, with the supported versions list now including: 2025-11-25, 2025-06-18, 2025-03-26, 2024-11-05, 2024-10-07.

Evidence

jn at line 255378 (protocol version constant "2025-11-25") and UB1 at line 255540 (supported versions array)

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

Verbatim
Official · Anthropic

Anthropic’s official release notes

Published verbatim by Anthropic for v2.0.71. Text is unmodified from the upstream changelog. Everything else on this page came out of the bundle instead, which is why the two lists don't match.

  • Added /config toggle to enable/disable prompt suggestions
  • Added /settings as an alias for the /config command
  • Fixed @ file reference suggestions incorrectly triggering when cursor is in the middle of a path
  • Fixed MCP servers from .mcp.json not loading when using --dangerously-skip-permissions
  • Fixed permission rules incorrectly rejecting valid bash commands containing shell glob patterns (e.g., ls .txt, for f in .png)
  • Bedrock: Environment variable ANTHROPIC_BEDROCK_BASE_URL is now respected for token counting and inference profile listing
  • New syntax highlighting engine for native build
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System prompt

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