docs: prepare baml_language 0.18.0 changelog by sxlijin · Pull Request #4628 · BoundaryML/baml

sxlijin · 2026-08-28T23:01:58Z

Changes

Add the reviewed 0.18.0 release notes with feature, compatibility, and fix summaries linked to their PRs.
Restore the 0.17.0 section to its finalized release contents, excluding the later fix: harden runtime compilation boundaries #4460 changelog addition.

Testing

mise run validate-markdown
git diff --check

Screenshots

Not applicable; documentation-only change.

Summary by CodeRabbit

Documentation
- Added release notes for version 0.18.0.
- Documented LLM introspection, asynchronous stream iteration, trace querying, expanded reflection APIs, file I/O, lazy iterators, optional random-number controls, and improved error reporting.
- Documented breaking changes involving reflection, encoding, templates, output formatting, test blocks, and SDK generation.
- Updated version 0.17.0 notes to reflect revised breaking-change and bug-fix details.

vercel · 2026-08-28T23:02:03Z

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chatgpt-codex-connector · 2026-08-28T23:02:09Z

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-08-28T23:05:25.790392Z	`fcb4b5f`	PR opened

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github-actions · 2026-08-28T23:02:26Z

⏭️ Performance benchmarks were skipped

Perf benchmarks (CodSpeed) are opt-in on pull requests — they no longer run on every push. They always run automatically after merge to canary/main.

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coderabbitai · 2026-08-28T23:03:35Z

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 0a4800f7-6998-480a-8d24-51b6c99014b7

📥 Commits

Reviewing files that changed from the base of the PR and between fcb4b5f and 8fe0115.

📒 Files selected for processing (1)

baml_language/CHANGELOG.md

🚧 Files skipped from review as they are similar to previous changes (1)

baml_language/CHANGELOG.md

Included review availability: Your plan provides up to 8 included reviews per hour; 6 remain after this review.

📝 Walkthrough

Walkthrough

The changelog adds release notes for version 0.18.0 and removes selected entries from version 0.17.0.

Changes

Release notes

Layer / File(s)	Summary
Release history update `baml_language/CHANGELOG.md`	Adds the 0.18.0 features, breaking changes, compatibility changes, and fixes. Removes selected 0.17.0 entries.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to 8fe01

This documentation-only changelog update introduces no actionable merge-blocking risk; it is merge-ready after normal checks and review.

Poem

A rabbit reads the changelog bright
New APIs hop into sight
Old notes leave the page
Fresh release marks a new stage
Carrots cheer the version change

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: preparing the baml_language 0.18.0 changelog. This matches the documented release-note updates.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

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🧪 Generate unit tests (beta)

Create PR with unit tests
Commit unit tests in branch sxlijin/prepare-baml-language-0.18.0

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Actionable comments posted: 1

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Inline comments:
In `@baml_language/CHANGELOG.md`:
- Line 37: Correct the changelog inline formatting by removing the extra
parenthesis before the PR link in the eval() entry and inserting a space between
“Bring” and the inline `ctx.output_format()` code in the referenced entry.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 44daa6c0-bfb4-4c63-8e7b-30361e690ae8

📥 Commits

Reviewing files that changed from the base of the PR and between eaf7cab and fcb4b5f.

📒 Files selected for processing (1)

baml_language/CHANGELOG.md

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github-actions · 2026-08-28T23:33:33Z

Binary size checks passed

✅ 7 passed

	Artifact	Platform	File	Gzip	Gated on	Baseline	Delta	Status
✅	`baml-cli`	Linux	🔒 72.7 MB	27.4 MB	file	72.9 MB	-167.8 KB (-0.2%)	OK
✅	`packed-program`	Linux	🔒 28.6 MB	10.9 MB	file	28.6 MB	+19.2 KB (+0.1%)	OK
✅	`baml-cli`	macOS	🔒 63.2 MB	25.1 MB	file	63.3 MB	-132.3 KB (-0.2%)	OK
✅	`packed-program`	macOS	🔒 25.8 MB	10.2 MB	file	25.8 MB	+38.5 KB (+0.1%)	OK
✅	`baml-cli`	Windows	🔒 82.9 MB	27.8 MB	file	83.0 MB	-167.2 KB (-0.2%)	OK
✅	`packed-program`	Windows	🔒 30.9 MB	10.7 MB	file	30.9 MB	-23.9 KB (-0.1%)	OK
✅	`bridge_wasm`	WASM	22.2 MB	🔒 5.7 MB	gzip	5.7 MB	+13.0 KB (+0.2%)	OK

🔒 = the size this artifact is GATED on (ceiling + delta). Binaries gate on file size (installed binary); WASM gates on gzip (download size). The other size is shown for information only.

Generated by cargo size-gate · workflow run

docs: prepare baml_language 0.18.0 changelog

fcb4b5f

vercel Bot deployed to Preview – beps August 28, 2026 23:03 View deployment

coderabbitai Bot requested changes Aug 28, 2026

View reviewed changes

Comment thread baml_language/CHANGELOG.md Outdated

docs: fix changelog formatting

8fe0115

vercel Bot deployed to Preview – beps August 28, 2026 23:11 View deployment

coderabbitai Bot approved these changes Aug 28, 2026

View reviewed changes

vercel Bot deployed to Preview – promptfiddle2 August 28, 2026 23:19 View deployment

sxlijin added this pull request to the merge queue Aug 28, 2026

Merged via the queue into canary with commit 8e8d886 Aug 28, 2026
70 of 88 checks passed

sxlijin deleted the sxlijin/prepare-baml-language-0.18.0 branch August 28, 2026 23:35

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docs: prepare baml_language 0.18.0 changelog - #4628

docs: prepare baml_language 0.18.0 changelog#4628
sxlijin merged 2 commits into
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sxlijin/prepare-baml-language-0.18.0

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