Latest published versions, checked against official release channels. These are upstream versions; research and installed clients may cover older versions.
| Release baseline | Codex CLI | Claude Code | Cursor Agent | OpenCode | pi |
|---|---|---|---|---|---|
| Latest published version |
Claude Code’s stable channel can lag its latest channel. OpenCode uses the 2.x release line (@opencode/cli). Cursor’s version comes from its official CLI installer, not the desktop app.
Historical release observations
- Harness
- codex
- Version
- 0.150.1
- Channel
- stable
- Released At
- 2026-08-27
- Observed At
- 2026-08-28
- Commit
- 9085439
- Source
- Kind
- first-party-release
- Harness
- codex
- Version
- 0.154.0
- Channel
- stable
- Observed At
- 2026-09-12
- Source
- Kind
- local-client
- Notes
- Version confirmed by the locally installed client; this is a local observation, not a claim that it is the globally latest release.
- Compared with the retained 0.151.0 binary, 0.154.0 adds --worktree to the root command and to exec, resume, fork, queue, archive, unarchive, and delete; plugin help expands add and list from configured marketplace snapshots to configured or remote marketplaces; and the top-level mcp-server command is no longer listed.
- Harness
- claude-code
- Version
- 2.1.248
- Channel
- stable
- Observed At
- 2026-08-28
- Source
- Kind
- community-archive
- Notes
- Version confirmed by the locally installed client; the archive is unofficial extracted release evidence.
- Harness
- claude-code
- Version
- 2.1.277
- Channel
- stable
- Released At
- 2026-09-18
- Observed At
- 2026-09-29
- Source
- Kind
- first-party-package
- Notes
- The npm stable dist-tag pointed at this version when observed; the latest dist-tag was 2.1.284.
- Harness
- claude-code
- Version
- 2.1.284
- Channel
- latest
- Released At
- 2026-09-28
- Observed At
- 2026-09-29
- Commit
- 8364969e9f5234ef3d9743cf7c790e9aab0ac3b1
- Source
- Kind
- local-client
- Notes
- Version confirmed by the locally installed client, which follows the latest release channel; the commit identifies the first-party changelog revision consulted, not a source build.
- Compared with a retained 2.1.251 install, this build adds plugin --json, --accept-command, and --registry options, a plugin eval init subcommand, and claude rm worktree recovery flags; see management.json.
- Between 2.1.252 and 2.1.284 the first-party changelog adds AGENTS.md project instructions (2.1.277, read when no CLAUDE.md or CLAUDE.local.md exists) and extends them to Bedrock, Vertex AI, Foundry, gateways, and telemetry-disabled sessions (2.1.281); interactive sessions without a configured permission mode now start in auto mode (2.1.284).
- Harness
- cursor-agent
- Version
- 2026.08.11-e8db854
- Channel
- stable
- Observed At
- 2026-08-28
- Source
- Kind
- local-client
- Notes
- Cursor Agent auto-updates; this is a locally observed client build, not a claim that it is the globally latest build.
- Harness
- pi
- Version
- 0.84.4
- Channel
- stable
- Observed At
- 2026-08-31
- Source
- Kind
- first-party-package
- Harness
- pi
- Version
- 0.99.1
- Channel
- stable
- Released At
- 2026-09-29
- Observed At
- 2026-09-30
- Commit
- d86654abb8862e201933517d6f1fce9f88dd117f
- Source
- Kind
- first-party-package
- Notes
- Native MCP support was added in 0.99.0 as a built-in extension.
- Harness
- opencode
- Version
- 2.0.20
- Channel
- latest
- Released At
- 2026-09-29
- Observed At
- 2026-10-01
- Commit
- 84c9be93a56304a108f1a22df0c5d62c26d5b6ca
- Source
- Kind
- first-party-package
- Notes
- Observed @opencode/cli latest dist-tag and isolated native binary reporting opencode v2.0.20; opencode-ai is a separate 1.x package.
- GitHub v2.0.20 tag resolves to the recorded commit; package integrity was verified before extracting the Darwin ARM64 binary. Binary-to-source reproducibility was not established.
- Harness
- codex
- Version
- 0.162.1
- Channel
- stable
- Released At
- 2026-10-09
- Observed At
- 2026-10-12
- Source
- Kind
- first-party-release
- Notes
- GitHub releases/latest resolved to rust-v0.162.1 on the observation date. The memory research source checkout separately tracks origin/main at a9b0815167c27ab13719dd12d13b63e02b70d221; this does not update the installed client.