release: 1.16.0

[openai-sdks]

Automated Release PR

1.16.0 (2026-09-21)

Features

• api: add prompt-cache prewarming (#196) (9032f58)
• api: add webhook endpoint management (#201) (dea465a)
• cli: support custom request headers (#190) (07e3ed9)

Bug Fixes

• apiform: preserve float32 precision in comma arrays (#78) (774612f)
• apiform: strip path components from upload filenames (#120) (a92e143)
• apiform: support primitive pointers in comma arrays (#119) (9d146cd)
• apiquery: preserve narrow numeric parameters (#76) (b152780)
• apiquery: reject complex elements in comma arrays (#118) (46faf2c)
• apiquery: reject non-string map keys (#88) (687a097)
• autocomplete: omit hidden flags from suggestions (#122) (137d59b)
• cmd: include backslash in path detection for @ file references (#38) (f984eb1)
• debug: redact sensitive response headers (#32) (ee62f85)
• explore: avoid panic when printing an empty result set (#68) (f74838c)
• install Linux package binaries under /usr/bin (#34) (ac4e7cb)
• jsonview: avoid width underflow in static string rendering (#117) (cbdf265)
• jsonview: preserve literal object keys in pretty output and explorer (#143) (25664bf)
• omit redirect destinations from multipart upload errors (#189) (642d511)
• output: stop pagination at max items (#43) (552840e)
• requestflag: preserve JSON numbers written in exponent form (#195) (20db45e)

Chores

• api: clarify Live SIP call help (#193) (79435c4)
• api: document MCP connector deprecation (#202) (1d4e76c)
• api: update image request examples (#197) (4b75e9b)
• deps: bump the codeql group across 1 directory with 2 updates (#161) (97734f3)
• deps: bump the go-minor-and-patch group across 1 directory with 2 updates (#144) (aa1158d)
• deps: update openai-go to v3.61.0 (#184) (de52b2e)
• deps: update openai-go to v3.63.0 (#198) (3f2c883)
• deps: update openai-go to v3.63.1 (#204) (eb415e5)
• deps: update openai-go to v3.64.0 (#206) (0169bff)

Documentation

• correct bootstrap dependency check description (#181) (4aa657c)

---

This PR was generated with Release Please. See documentation.

[github-actions]

Castiron custom code

✅ No new custom-code files detected.

5 mixed files remain; 0 existing customizations changed.

Compared 0169bff050ff → 952661e0cdca. Generated baselines verified.

5 existing customizations unchanged

• pkg/cmd/adminorganizationcertificate.go
• pkg/cmd/cmd.go
• scripts/castiron/README.md
• scripts/castiron/custom_code_report.py
• scripts/castiron/test_custom_code_report.py

A changed generated baseline means this report cannot reliably identify which handwritten lines changed.

Inspect the custom-code diff

Download the exact patch produced by this run (requires repository access):

gh run download 35563284620 --repo openai/openai-cli \
  --name castiron-custom-code-35563284620-1 --dir /tmp/castiron-custom-code-35563284620-1
git apply --stat /tmp/castiron-custom-code-35563284620-1/custom-code.patch
cat /tmp/castiron-custom-code-35563284620-1/custom-code.patch

Or reproduce it from an SDK checkout containing the vendored reporter:

git fetch --no-tags origin 0169bff050ff9c05c4609b669c06709306d464fa 952661e0cdca21c2dce517fd2b5c944ac65222cb
python3 scripts/castiron/custom_code_report.py report \
  --base 0169bff050ff9c05c4609b669c06709306d464fa \
  --head 952661e0cdca21c2dce517fd2b5c944ac65222cb --fetch --require-head-hash --public \
  --out /tmp/castiron-custom-code-952661e0cdca
cat /tmp/castiron-custom-code-952661e0cdca/custom-code.patch

This is the current full custom patch for mixed files, not an attribution of only the handwritten lines changed by this PR.

Full report and patch

[chatgpt-codex-connector]

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[saioai]

i double checked the latest release head. #76 and #117 are on main but still missing from Bug Fixes. the release bot says it can't parse the Go examples in their commit messages, and its refresh after #34 skipped them again. can we add simple commit overrides to those merged PRs and rerun it before tagging 1.16.0?

[saioai]

i submitted my last comment as an approval by mistake. requesting changes until #76 and #117 appear in the 1.16.0 Bug Fixes section.

[saioai]

requesting changes. #76 and #117 are included in this release but still missing from its notes. please add both entries before tagging 1.16.0.

[dpiet-oai]

Please include #202 before merging this 1.16.0 release. It adds the built-in MCP connector deprecation and remote-MCP migration guidance to Responses CLI help and the API reference, while preserving compatibility with older models. The update is generated against current main, including the merged webhook commands and Go 3.63.0. Local compile/build and both help pages are verified; public CI and review are still pending.

[dpiet-oai]

@saioai both missing fixes are now in the 1.16.0 Bug Fixes section and CHANGELOG.md: #76 (narrow numeric query parameters) and #117 (static string width underflow).

Added Release Please commit overrides to the two merged PRs and reran the release bot successfully. Verified the refreshed head f9b65c3 adds only those two changelog entries; the version and MCP update #202 are preserved. Could you re-review the release-note fix?