Oh My Diff changelog

Oh My Diff 1.0.0-rc.2

Mon, 19 Oct 2026 12:00:00 GMT

Second release candidate: a native mod settings panel, Claude subscription models inside the session, keyboard-first mod dialogs and faster mod status.

New

Claude subscription in the session (`omd_claude_cli`, opt-in): `/claude login` in a terminal pane, your plan's Claude models in `/model`, and switching a thread between Claude and OpenAI from the next turn without a relaunch.
`/mods` and `/statusline` open in Codex's native settings panel, with tabs, search and toggles, and redraw from real state after every change.
Mod API: `terminal.panel`, `providers.models` and `model_provider` on thread settings (experimental).

Changed

Mod dialogs work from the keyboard: arrows move between controls, held keys repeat, Space toggles, and `/mods` filters as you type with fuzzy matching.
`/mods` opens faster in OMD+: mod status is shared and the package listing is cached.

Fixed

Mods: `/mods` can't turn itself off or remove itself, an installed mod updates from its own panel instead of reinstalling, and `/omd`'s Reload mods works without an attached client.
Terminal UI: the welcome logo stays while you type a command and hides after the first history line; mod diagnostics wrap and no longer fire for Codex's internal threads.
Status line: a ChatGPT plan shows `included` instead of `unpriced · cost unknown`.
Install: `omd-package activate direct` no longer exits right after launch on a machine where packaged Codex never ran.
Mod runtime: a truncated evidence file is repaired instead of failing every later write; read-only agents accept only tools Codex has; one lead's new turn no longer drops another lead's tool outcomes.
Install: the installer ends with the next step, `hash -r` or a new terminal before `codex`, because a shell that already looked up `codex` keeps starting plain Codex.
Mods: a typed `/mods` action reports its own result while another change waits for `/mods apply`.

Oh My Diff 1.0.0-rc.1

Sat, 17 Oct 2026 12:00:00 GMT

Release candidate for Oh My Diff 1.0.0, the first public beta: Codex 0.163.0 with a TypeScript mod host, the OMD Core and OMD+ collections and a signed curl installer.

New

Installer: one curl command installs OMD Core or OMD+, with `omd update`, update channels, rollback, profile switching and an uninstall that restores upstream Codex.
Signed releases: the installer and `omd update` refuse a release whose manifest is unsigned or doesn't match its archive.
OMD+ mods on by default: status line above or below the prompt (`omd_statusline`), plan panel, tool lines, idle compaction before the prompt cache expires, and auto-continue for approvals and questions left unanswered for two minutes.
Opt-in mods: Claude subscription as a native provider with status, billing routes and extra usage (`omd_claude_cli`, Claude CLI 2.1.296), `/continue`, and a preview thumbnail strip.
Claude Code ports: `burn_meter`, `token_weather` and `blast_radius`, each installable with one command.
Mod API: multi-file packages, component modules on the draw path, live continuations, raw process streams and raw terminal frames.
Mod API: composer key interception, completion rows and mention reads; persisted-history interception, session tool records and prompt-cache marks.
Mod authors: typed mocks and an offline test kit, scaffold and reload workflows, manifest schema checks in `omd-mod`, and published mod index entries.
Managed mod policy that fails closed, with deployment sync and provenance checks.
Update channels `stable`, `prerelease` and `nightly` (`omd update channel`); release candidates install from `prerelease`.

Changed

Pinned to Codex 0.163.0.
The repository holds only the launch collection: OMD Core installs 3 mods; OMD+ adds 8 more on by default, 11 opt-in mods and 3 inert plugins.
Mod API `0.2.0-experimental.5`: entries marked frozen in the conformance registry keep their shape; experimental ones, such as `terminal.blit` and `process_raster_v1`, may change.
Mod callbacks reuse a warm runner per package with smaller requests; package listings and terminal views are cached.
Mod UI drops backdrops and glass effects; the package listing is narrower.
`/continue` is opt-in.
Docs: short install, collection, manage-mods and write-a-mod guides, an agent mod guide, and every mod README on one template.
Release archives include the licenses and third-party notices.
The mod API reference is split into topic pages.

Fixed

Security: mod realm containment, private store files, owner-only component events, config redaction, sealed provider port hand-off, a protected runner and an MCP approval gate.
Security: the broker binds stores and evidence to their owner; a runner memory watchdog stops runaway mods at 512 MiB.
Install: resumable uninstall and recovery, release asset URL and SHA-256 required together, and a warning when the `codex` on PATH isn't the OMD launcher.
Mod runtime: runner reuse and cancellation, transactional reloads, state migration on `state_version` changes, thread-scoped routes and state, and receipt budget edge cases.
Mod runtime: the idle watchdog no longer kills stateful runners; offline timers bind to the right thread.
Terminal UI: Esc closes mod completion popups on the first press; modal dialogs, button hotkeys, prompt wrapping, ASCII glyphs and pane scroll; host diagnostics are never clipped.
Terminal UI: raw-frame retries, hidden raster backoff and mouse-look motion capture.
Mods: status line startup and refresh timing, stale LSP answers and bounded resync of large or non-UTF-8 files, preview truncation notices and watch retries.
Mods: Claude route extra usage, billing reruns and error mapping; `/burn` and token usage in the ports.
Upstream-direct mode keeps upstream Codex behavior, with no footer status prefix.
Install: a piped install without `--profile` shows the profile prompt; Node 24 on `PATH` works without mise; the first thread after a reboot no longer fails with `protected_path_unavailable`; installed `omd-package` commands no longer look for mod sources; uninstall removes the installation's own Codex plugins and marketplace.
Security: the authority broker checks roles, refuses to pin an older signed release, and refreshes its root tooling only from the newest signed manifest.
Mod runtime: workspace folders that don't exist take no lease.
Terminal UI: `/config` in the surface list, rendered selections cleared each frame, Alt-key fallbacks; advisor route setup.

Decided

1.0.0 ships labeled beta: not every planned capability is in yet.
Packages outside the launch collection return in post-launch waves.

Launch scope and upstream pin

Thu, 08 Oct 2026 12:00:00 GMT

A smaller launch collection, a planned API freeze and refreshed Codex.

Changed

Pinned to Codex 0.161.0
Warm release targets across batch closeouts

Fixed

Untracked candidate files and tree parity

Decided

Core tooling and a smaller OMD+ launch
API freeze before release qualification
Remaining collection returns in two waves

Privacy and response previews

Wed, 07 Oct 2026 12:00:00 GMT

Opt-in redaction, richer previews and repairs across the mod ecosystem.

New

Opt-in secret and personal-data redaction
Image thumbnails and inline Mermaid diagrams
Output observer for advisor notes

Fixed

Secret-scan ordering and privacy policy
Mermaid rendering and stale advisor notes
Transcript pairing, notices and client isolation
Nightly validation and archived dependencies

Client views and package controls

Tue, 06 Oct 2026 12:00:00 GMT

Richer terminal controls, external clients and reviewed package installation.

New

Rich controls, notices and JSX
Rasters, pointer capture and image placement
External-client protocol and approval desk
Read-only GitHub PR and CI views
Reviewed npm, Git and folder installs

Fixed

Transcript rewrite ordering and idle-turn races
Client isolation and notice delivery
Terminal layout, focus and image rendering
Package protection, rollback and thread queues

History rewriting and updates

Mon, 05 Oct 2026 12:00:00 GMT

Mods gain composer controls, transcript rewriting and OMD update settings.

New

Composer drafts and prompt queues
Compaction and lifecycle interception
Durable transcript rewriting
Update notices and opt-in automatic updates

Changed

Pinned to Codex 0.160.1
Bounded request, ledger and rendering work

Fixed

Authority, accounting and request admission
Persistence, packaging and recovery

Interception, agents and provider routes

Sun, 04 Oct 2026 12:00:00 GMT

Mods gain request controls, agent lifecycles and provider usage views.

New

HTTP, command and config interception
Model controls and final-request policy
Agent lifecycles and autonomous turn queues
Agent-written session briefs
Usage HUD and Cursor subscription route

Fixed

Peer sessions and provider accounting

Mini mode and authority

Sat, 03 Oct 2026 12:00:00 GMT

Scrollback, composed panels and protected host authority for mods.

New

Scrollback-first omd mini interface
OMD Night palette
Foldable session, Git, LSP and MCP panels
Protected authority broker and credential gateway
Managed processes and delegated approvals

Changed

Composed workspace sidebar and session status
Mods can hide inline terminal sites
Continuation interceptors replace exclusive hooks

Fixed

Launcher keeps the current working directory
Mini interface switching and thread state
Worker startup and delegated approval scopes
Tool gates and rename guards

Host and mod repairs

Fri, 02 Oct 2026 12:00:00 GMT

Review fixes across the host, mods, installer and author tooling.

Changed

Installer accepts compatible upstream and Node versions
Host callback rules documented

Fixed

Host lifecycle, state and package controls
Mod permissions and terminal views
Installer launchers and code-mode host packaging
Author SDK imports

Workspace tools and provider profiles

Thu, 01 Oct 2026 12:00:00 GMT

More workspace tools, provider controls and interactive mod surfaces.

New

Interactive host calls and focused mod input
Approval framing and streamed message templates
Unix socket grants for mod commands
Provider profiles and live route reload
Workspace layouts and command palettes
Task worktrees and session port discovery
Herdr integration and MCP controls
Editor and shared checkout mods

Changed

Spare mod runner for callbacks
LSP context when reading files
Mod state scoped by repository and thread

Fixed

Secret redaction in config reads

Tools, panes and mod controls

Wed, 30 Sep 2026 12:00:00 GMT

New workflow tools, workspace panels and controls for managing mods.

New

/continue for interrupted work
/simplify review-policy plugin
Optional workflow procedures plugin
Opt-in /plan removal mod
Hashline edits and advisor triggers
Browser plugin and /preview Markdown mod
Experimental Muse agent route
Workspace panes, file tree and LSP view
Notes vault and pinned plan panel
/mods controls and native /omd recovery
First-run profile card
Frecency file ranking and powerline status

Changed

Debugger packaged as an optional plugin
Claude CLI provider rebuilt
LSP diagnostics after edits
Inspector command moved to /inspect

Fixed

Context, reactive rules and theme review findings
Host activity and workspace tracking
Debugger lifecycle and cleanup
Mod transports, sidecars and host review findings

Feature-agnostic host cleanup

Tue, 29 Sep 2026 12:00:00 GMT

Features move into mods as the host goes generic.

New

Generic host primitives for mods
Platform host task operations
Experimental API 0.2.0 builds .3 through .5
Theme palettes and backdrops
Reactive rules and programmable context mods

Changed

Features now owned by mods
Pinned to Codex 0.159.1
Only the current mod API kept
Welcome logo and OMD Core / OMD+ branding

Fixed

Review findings across four commits
Per-handle agent locks
Route and gate checks
Capacity versus slow-down API errors

Decided

Codex themes added to the roadmap

Shared APIs and host rework

Sun, 27 Sep 2026 12:00:00 GMT

Experimental API 0.2 adds generic host operations alongside review fixes.

New

Shared extension APIs between mods
Local feature packages for optional plugins
Experimental API 0.2 host primitives

Changed

One OMD mode replaces platform and enabled

Fixed

Git, LSP, Claude and installer review findings
Advisor lane, sessions and graph outputs

Decided

A feature-agnostic host: mods are the features

Git sidebar and terminal mods

Sat, 26 Sep 2026 12:00:00 GMT

OMD now builds on upstream Codex’s fullscreen terminal.

New

Git sidebar mod
Terminal visual treatment as mods

Changed

Dropped OMD’s own fullscreen TUI

Decided

A mod that removes /plan
A lean pass on tests
A guard against oversized shell output

Code cells, LSP sync, debugger

Fri, 25 Sep 2026 12:00:00 GMT

Three developer tools, all opt-in.

New

Persistent Python and Bun code cells
LSP sync after every edit
Python debugger (debugpy over DAP)

Changed

LSP sync rebuilt as a pure mod
Roadmap grouped into batches

Claude models and subagents

Thu, 24 Sep 2026 12:00:00 GMT

Both ship as mods, not runtime changes.

New

Claude models via the official Claude CLI
Typed subagent tasks

Decided

New features ship as mods, not Rust patches

Launch identity and installer

Wed, 23 Sep 2026 12:00:00 GMT

Packaging work, then a full review of the codebase.

New

OMD launch banner in the terminal
Terminal extension surface for mods
Apple Silicon prebuilt
One-line installer (private for now)

Changed

Rebased on the latest Codex CLI

Fixed

Findings from a three-branch code review

Everything becomes an extension

Tue, 22 Sep 2026 12:00:00 GMT

Built-in features rebuilt as skills, hooks, plugins and mods.

New

Recovery and terminal mods
Guidance, code graph and code health
LSP adapters for five languages
Review cadence and app bridges
Reading URLs, GitHub, PDFs and notebooks
Persistent JavaScript, optional Python
Theme and focus-flow mods
Curated extension index
First live first-party mods

Decided

What goes in the lean first release
Launch plan: proof first

Reproducible mod packages

Mon, 21 Sep 2026 12:00:00 GMT

Mods ship as versioned, reproducible packages.

New

Reproducible packages and updates
Integration coverage matrix
Full API conformance test
Extension types: skill, hook, plugin, mod

Changed

Coordination policy moved from Rust to TypeScript
Pinned to a newer Codex

Author tooling and rollback

Sun, 20 Sep 2026 12:00:00 GMT

Tools for people who write mods.

New

Versioned workflow contracts
Installable first-party mod preview
Public API coverage
Compatibility versions and rollback
TypeScript author tools

Rust meets TypeScript

Sat, 19 Sep 2026 12:00:00 GMT

Codex’s native extension points are now open to TypeScript mods.

New

Versioned mod API and loader
Example mods

First mod loader

Thu, 17 Sep 2026 12:00:00 GMT

TypeScript mods can load, add tools and keep state.

New

Mod loader with context, tools and state

The pivot

Wed, 16 Sep 2026 12:00:00 GMT

OMD becomes a moddable Codex, not a fixed feature set.

New

Bundled browser tooling
App bridge adapters

Decided

Product centers on TypeScript mods
Benchmarks move to the end

Guidance, code intel, review

Tue, 15 Sep 2026 12:00:00 GMT

The agent learns your repo and double-checks its work.

New

Communication modes and reactive rules
Repo knowledge and code graph
Code-health guard and LSP checks
Unified review system
Adversarial completion gate
Direct mode: plain upstream Codex
First local install

Delegation and recovery

Mon, 14 Sep 2026 12:00:00 GMT

The first patched Codex runtime.

New

Isolated worker delegation
Selectable worker contexts
Recovery controls
Durable task checkpoints
Fullscreen TUI
Versioned guidelines

Decided

First look at modding the harness

Hello, Oh My Diff

Sun, 13 Sep 2026 12:00:00 GMT

Measurement before claims. CAI is renamed Oh My Diff.

New

Benchmark infrastructure
Frozen evaluation protocol

Decided

Rename: CAI → Oh My Diff
No numbers until they’re measured

Pinned to upstream Codex

Sat, 12 Sep 2026 12:00:00 GMT

A custom build that still shares your Codex setup.

New

Upstream lock file
Compatibility checks
A skill for each roadmap task

Day zero

Fri, 11 Sep 2026 12:00:00 GMT

Started as CAI (“Cheaper AI”), a patch set for Codex.

New

Repo, PRD and roadmap