/new and codex resume <session-uuid> are extremely slow after upgrading to 0.142.0
Open 💬 1 comment Opened Jun 24, 2026 by jadchene
What version of Codex CLI is running?
0.142.0
What subscription do you have?
plus
Which model were you using?
gpt-5.5
What platform is your computer?
x64
What terminal emulator and version are you using (if applicable)?
Windows Terminal PowerShell
Codex doctor report
{
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"generatedAt": "1782286927s since unix epoch",
"overallStatus": "warning",
"codexVersion": "0.142.0",
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"pid file": "C:\\Users\\jadch\\.codex\\app-server-daemon\\app-server.pid (missing)",
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"status": "not running",
"update-loop pid file": "C:\\Users\\jadch\\.codex\\app-server-daemon\\app-server-updater.pid (missing)"
},
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},
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"summary": "OpenAI auth is not required for the active model provider",
"details": {
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"auth storage mode": "File",
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},
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"details": {
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"config.toml": "C:\\Users\\jadch\\.codex\\config.toml",
"config.toml parse": "ok",
"cwd": "E:\\AI-Workspace",
"enabled feature flags": "<redacted>",
"feature flag overrides": "unified_exec=true, apps=false",
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"log dir": "C:\\Users\\jadch\\.codex\\log",
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},
"network.provider_reachability": {
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"summary": "active provider endpoints are reachable over HTTP",
"details": {
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},
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"network.websocket_reachability": {
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"details": {
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},
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"summary": "state paths and databases are inspectable",
"details": {
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"active rollout files": "37 files, 50247089 total bytes, 1358029 average bytes",
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"details": {
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"issues": [
{
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"expected": ">= 80 columns",
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"fields": [
"terminal size"
]
}
],
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"updates.status": {
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"details": {
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"check for update on startup": "true",
"last checked at": "2026-06-24T02:18:57.990794200Z",
"latest version probe": "curl: (35) schannel: failed to receive handshake, SSL/TLS connection failed",
"npm update target": "D:\\Work\\nodejs\\node_global\\node_modules\\@openai\\codex",
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"version cache": "C:\\Users\\jadch\\.codex\\version.json"
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"remediation": null,
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}
}
}What issue are you seeing?
After upgrading Codex CLI to 0.142.0, /new and codex resume <session-uuid> both became noticeably slower. They now take about 5 seconds to become usable.
What steps can reproduce the bug?
- Upgrade Codex CLI to
0.142.0. - Run:
``bash``
codex resume <session-uuid>
- Observe that resuming the specific session by UUID is very slow.
- Start Codex with
codex, then run/new. - Observe that creating a new session is also very slow.
What is the expected behavior?
- /new should open a new session quickly.
- codex resume <session-uuid> should resume the specified existing session quickly.
Additional information
I previously encountered a similar Codex slowdown, and disabling the apps feature fixed it. After upgrading to 0.142.0, the slowdown is back.
I rolled back Codex CLI from 0.142.0 to 0.141.0, and the issue disappeared. After downgrading to 0.141.0, both /new and codex resume <session-uuid> became responsive again.
So this looks like a regression introduced in 0.142.0.
This issue has 1 comment on GitHub. Read the full discussion on GitHub ↗