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The AI Toolchain — issue -137, April 4, 2026

THE AI TOOLCHAIN NO. -137
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THE DAILY RELEASE FIREHOSE
PUBLISHED APRIL 4, 2026 · EVERY WEEKDAY
EDITIONS tail grep head diff uniq

The daily firehose — everything the toolchain shipped today, already filtered.

// HOW THIS ISSUE IS MADE

We read every release from the 174 tools on our watchlist at the source — GitHub and GitLab release notes, vendor release pages and changelogs, project blogs and feeds, vendor press releases, and the source code behind the tag. Bug-fix-only releases and non-product newsroom noise are dropped; what's left is summarized down to the new capability, how to try it, and any screenshots or videos the release itself published. Every entry links to the sources it was built from.

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$ tct list   # 5 tools matched
AI & LLM Tooling
◆  AI Coding Agents

Anthropic Claude Code

Sources Release notes → v2.1.92 NOTES

Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands.

Claude Code v2.1.92 adds fail-closed remote policy enforcement, an interactive Bedrock setup wizard, and richer cost breakdowns.

└──▷ GET THIS VERSION
$ git clone --branch v2.1.92 https://github.com/anthropics/claude-code.git
# already have the repo? check out this version:
$ git checkout v2.1.92
└──▷ TRY IT
Name a Remote Control session with your own prefix so it's identifiable across machines in a shared team environment.
$ claude --remote-control-session-name-prefix my-team
  • Adds forceRemoteSettingsRefresh policy setting that blocks CLI startup until remote managed settings are freshly fetched and exits on fetch failure (fail-closed).
  • Adds an interactive Bedrock setup wizard from the login screen ('3rd-party platform') guiding AWS auth, region config, credential verification, and model pinning.
  • Adds per-model and cache-hit cost breakdown to the /cost command for subscription users.
  • Upgrades /release-notes to an interactive version picker.
  • Remote Control session names now default to your hostname as prefix (e.g. myhost-graceful-unicorn), overridable with --remote-control-session-name-prefix.
+2 moreshow less
  • Pro users see a footer hint when returning to a session after prompt cache expiry, showing estimated uncached tokens for the next turn.
  • Write tool diff computation is 60% faster on large files containing tabs, &, or $.
└──▷ BREAKING ON UPGRADE
  • !The /tag command has been removed.
  • !The /vim command has been removed; vim mode must now be toggled via /config → Editor mode.
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GitHub Copilot CLI

Sources Release notes → v1.0.18 NOTES

GitHub Copilot CLI v1.0.18 adds a Critic agent, async notification hooks, and a preToolUse permission suppression flag.

└──▷ GET THIS VERSION
$ git clone --branch v1.0.18 https://github.com/github/copilot-cli.git
# already have the repo? check out this version:
$ git checkout v1.0.18
  • Sets permissionDecision: 'allow' in a preToolUse hook to suppress the tool approval prompt entirely.
  • Adds a notification hook event that fires asynchronously on shell completion, permission prompts, elicitation dialogs, and agent completion.
  • New Critic agent automatically reviews plans and complex implementations using a complementary model to catch errors early (experimental, Claude models only).
  • Session resume picker now groups sessions by branch and repository on first use.
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SST OpenCode

Sources Release notes → v1.3.14 NOTES

The open source coding agent.

OpenCode v1.3.14 adds Venice AI provider, macOS MDM config, theme-only plugins, and restored git-backed review modes.

└──▷ GET THIS VERSION
$ git clone --branch v1.3.14 https://github.com/sst/opencode.git
# already have the repo? check out this version:
$ git checkout v1.3.14
  • Adds Venice AI as a supported provider.
  • Adds macOS managed preferences support for enterprise MDM deployments.
  • Adds file mentions in review comments (Desktop).
  • Adds keyboard navigation and shortcuts to the question dock (Desktop).
  • Adds a one-time confirmation before sharing a session for the first time (TUI).
+1 moreshow less
  • Adds support for theme-only plugin packages (Extensions).
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◆  Local LLM Runtimes

llama.cpp

Sources Release notes → b8665 NOTES

llama.cpp b8665 adds a dedicated Gemma 4 chat-template parser with tool-call and interleaved-thinking support.

└──▷ GET THIS VERSION
$ git clone --branch b8665 https://github.com/ggml-org/llama.cpp.git
# already have the repo? check out this version:
$ git checkout b8665
  • Adds a specialized Gemma 4 Jinja chat-template parser (gemma4.jinja) that emits JSON from Gemma 4 tool-call ASTs and registers <|tool_response> as an end-of-generation token.
  • Adds a custom Gemma 4 template to support interleaved thinking, preserving reasoning content in model turns.
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oobabooga's Text Generation WebUI (textgen)

Sources Release notes → v4.3.3 NOTES

oobabooga textgen v4.3.3 adds ik_llama.cpp backend, Gemma 4 tool-calling, and token-level logprobs in the completions API.

└──▷ GET THIS VERSION
$ git clone --branch v4.3.3 https://github.com/oobabooga/textgen.git
# already have the repo? check out this version:
$ git checkout v4.3.3
└──▷ TRY IT
Run a full install using the ik_llama.cpp backend to get improved KV cache quantization and MoE/CPU optimizations.
$ python server.py --ik --model my-model.gguf
Retrieve token-level log probabilities for both the prompt and generated output via the completions API.
$ curl http://localhost:5000/v1/completions -H 'Content-Type: application/json' -d '{"model": "my-model", "prompt": "Explain KV cache", "max_tokens": 64, "echo": true, "logprobs": 5}'
  • Adds --ik flag for full installs to switch to the ik_llama.cpp backend, which brings new quant types, more accurate KV cache quantization via Hadamard rotation (enabled by default), and MoE/CPU inference optimizations.
  • Adds textgen-portable-ik portable builds as a no-install distribution of the ik_llama.cpp backend alongside the existing llama.cpp portables.
  • Adds echo and logprobs parameters to the /v1/completions endpoint, returning token-level log probabilities for both prompt and generated tokens; token IDs are also returned in a new top_logprobs_ids field.
  • Adds Gemma 4 support with tool-calling in both the API and UI.
  • Transformers backend now autodetects torch_dtype from model config instead of always forcing bfloat16/float16; --bf16 still works as a manual override.
+1 moreshow less
  • Removes the obsolete models/config.yaml file; instruction templates are now detected from model metadata.
└──▷ BREAKING ON UPGRADE
  • !The models/config.yaml file is removed; instruction templates are now auto-detected from model metadata, so any local customizations stored in that file will no longer be applied.
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