# BentoML changelog

> A framework for packaging and serving machine learning models as production APIs.

- Vendor: BentoML
- Category: AI
- Official site: https://www.bentoml.com
- Tracked by: What's New (https://whatsnew.fyi/product/bentoml)
- Harvested from: GitHub (bentoml/BentoML)
- Entries below: 10 (newest first)

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

## Releases

### v1.4.39

- Date: 2026-05-07
- Version: v1.4.39
- Original notes: https://github.com/bentoml/BentoML/releases/tag/v1.4.39
- Permalink: https://whatsnew.fyi/product/bentoml/releases/v1.4.39

- **fixed** — Prevent following symlinks when copying files in BentoStore
- **fixed** — Add sharing=locked to BuildKit cache mounts for multi-arch builds
- **fixed** — Enhance Dockerfile generation by normalizing base image lines and adding tests
- **fixed** — Defer prometheus_client import in bentoml.metrics to fix histogram collection in multiprocess mode
- **fixed** — Handle string input in FileSchema by encoding to UTF-8

##### What's Changed
* ci: pre-commit autoupdate [skip ci] by @pre-commit-ci[bot] in https://github.com/bentoml/BentoML/pull/5593
* fix: prevent following symlinks when copying files in BentoStore by @frostming in https://github.com/bentoml/BentoML/pull/5598
* fix: add sharing=locked to BuildKit cache mounts for multi-arch builds by @lawrence3699 in https://github.com/bentoml/BentoML/pull/5597
* fix: enhance Dockerfile generation by normalizing base image lines and adding tests by @frostming in https://github.com/bentoml/BentoML/pull/5603
* fix: defer prometheus_client import in bentoml.metrics to fix histogram collection in multiprocess mode by @ramkrishs in https://github.com/bentoml/BentoML/pull/5602
* ci: pre-commit autoupdate [skip ci] by @pre-commit-ci[bot] in https://github.com/bentoml/BentoML/pull/5605
* fix: handle string input in FileSchema by encoding to UTF-8 by @frostming in https://github.com/bentoml/BentoML/pull/5606

##### New Contributors
* @lawrence3699 made their first contribution in https://github.com/bentoml/BentoML/pull/5597
* @ramkrishs made their first contribution in https://github.com/bentoml/BentoML/pull/5602

**Full Changelog**: https://github.com/bentoml/BentoML/compare/v1.4.38...v1.4.39

### v1.4.38

- Date: 2026-04-02
- Version: v1.4.38
- Original notes: https://github.com/bentoml/BentoML/releases/tag/v1.4.38
- Permalink: https://whatsnew.fyi/product/bentoml/releases/v1.4.38

- **added** — Native support for src-layout projects
- **fixed** — Switch to SandboxedEnvironment and remove unused Jinja2 extensions
- **fixed** — Use correct NVIDIA CUDA base images for debian distro

##### What's Changed
* feat: native support for src-layout projects by @VedantMadane in https://github.com/bentoml/BentoML/pull/5555
* fix: switch to SandboxedEnvironment and remove unused Jinja2 extensions by @frostming in https://github.com/bentoml/BentoML/pull/5591
* fix: use correct NVIDIA CUDA base images for debian distro by @mattmorganpdx in https://github.com/bentoml/BentoML/pull/5590

##### New Contributors
* @mattmorganpdx made their first contribution in https://github.com/bentoml/BentoML/pull/5590

**Full Changelog**: https://github.com/bentoml/BentoML/compare/v1.4.37...v1.4.38

### v1.4.37

- Date: 2026-03-25
- Version: v1.4.37
- Original notes: https://github.com/bentoml/BentoML/releases/tag/v1.4.37
- Permalink: https://whatsnew.fyi/product/bentoml/releases/v1.4.37

- **fixed** — Correctly load bentoml.models.HuggingFaceModel in container
- **fixed** — Resolve SQLite 'database is locked' errors under high concurrency
- **fixed** — Shell quote system package names in Dockerfile templates and image commands
- **fixed** — Reorder histogram samples in multiprocess prometheus output

##### What's Changed
* docs: Update slack to forum link by @Sherlock113 in https://github.com/bentoml/BentoML/pull/5567
* fix: correctly load `bentoml.models.HuggingFaceModel` in container by @nickthegroot in https://github.com/bentoml/BentoML/pull/5582
* chore(deps): bump docker/setup-qemu-action from 3 to 4 by @dependabot[bot] in https://github.com/bentoml/BentoML/pull/5564
* chore(deps): bump marocchino/sticky-pull-request-comment from 2 to 3 by @dependabot[bot] in https://github.com/bentoml/BentoML/pull/5571
* chore(deps): bump docker/setup-buildx-action from 3 to 4 by @dependabot[bot] in https://github.com/bentoml/BentoML/pull/5565
* fix: resolve SQLite 'database is locked' errors under high concurrency by @VedantMadane in https://github.com/bentoml/BentoML/pull/5558
* fix: shell quote system package names in Dockerfile templates and image commands by @frostming in https://github.com/bentoml/BentoML/pull/5583
* fix: reorder histogram samples in multiprocess prometheus output by @saivedant169 in https://github.com/bentoml/BentoML/pull/5570

##### New Contributors
* @nickthegroot made their first contribution in https://github.com/bentoml/BentoML/pull/5582
* @saivedant169 made their first contribution in https://github.com/bentoml/BentoML/pull/5570

**Full Changelog**: https://github.com/bentoml/BentoML/compare/v1.4.36...v1.4.37

### v1.4.36

- Date: 2026-03-06
- Version: v1.4.36
- Original notes: https://github.com/bentoml/BentoML/releases/tag/v1.4.36
- Permalink: https://whatsnew.fyi/product/bentoml/releases/v1.4.36

- **added** — Add new image API: build_include
- **fixed** — Correct typo 'seperators' to 'separators'
- **fixed** — Set SQLite busy_timeout and WAL mode to prevent 'database is locked' under concurrency
- **fixed** — Fix memory leak in readiness checks with remote dependencies
- **fixed** — Validate symlink targets in safe_extract_tarfile

##### What's Changed
* fix: correct typo 'seperators' to 'separators' by @thecaptain789 in https://github.com/bentoml/BentoML/pull/5546
* Reapply "feat: new image API: build_include" (#5531) by @frostming in https://github.com/bentoml/BentoML/pull/5539
* fix: resolve AnyIO NoEventLoopError when calling sync API from async API by @paipeline in https://github.com/bentoml/BentoML/pull/5550
* fix: Set SQLite busy_timeout and WAL mode to prevent 'database is locked' under concurrency by @VedantMadane in https://github.com/bentoml/BentoML/pull/5551
* Fix memory leak in readiness checks with remote dependencies by @paipeline in https://github.com/bentoml/BentoML/pull/5553
* fix: validate symlink targets in safe_extract_tarfile by @q1uf3ng in https://github.com/bentoml/BentoML/pull/5548
* Revert "fix: resolve AnyIO NoEventLoopError when calling sync API from async API" by @frostming in https://github.com/bentoml/BentoML/pull/5554
* chore: update AWS BYOC doc to v10 by @sauyon in https://github.com/bentoml/BentoML/pull/5559
* chore(deps): bump actions/download-artifact from 7 to 8 by @dependabot[bot] in https://github.com/bentoml/BentoML/pull/5561
* chore(deps): bump actions/upload-artifact from 6 to 7 by @dependabot[bot] in https://github.com/bentoml/BentoML/pull/5560
* ci: pre-commit autoupdate [skip ci] by @pre-commit-ci[bot] in https://github.com/bentoml/BentoML/pull/5562

##### New Contributors
* @thecaptain789 made their first contribution in https://github.com/bentoml/BentoML/pull/5546
* @paipeline made their first contribution in https://github.com/bentoml/BentoML/pull/5550
* @VedantMadane made their first contribution in https://github.com/bentoml/BentoML/pull/5551
* @q1uf3ng made their first contribution in https://github.com/bentoml/BentoML/pull/5548

**Full Changelog**: https://github.com/bentoml/BentoML/compare/v1.4.35...v1.4.36

### v1.4.35

- Date: 2026-02-03
- Version: v1.4.35
- Original notes: https://github.com/bentoml/BentoML/releases/tag/v1.4.35
- Permalink: https://whatsnew.fyi/product/bentoml/releases/v1.4.35

- **fixed** — Recreate connector on session refresh to prevent closed session errors
- **fixed** — Support importing multiple Bentos with shared models

##### What's Changed
* fix(client): recreate connector on session refresh to prevent closed session errors by @Wirg in https://github.com/bentoml/BentoML/pull/5541
* ci: pre-commit autoupdate [skip ci] by @pre-commit-ci[bot] in https://github.com/bentoml/BentoML/pull/5542
* fix: Support importing multiple Bentos with shared models by @frostming in https://github.com/bentoml/BentoML/pull/5543

##### New Contributors
* @Wirg made their first contribution in https://github.com/bentoml/BentoML/pull/5541

**Full Changelog**: https://github.com/bentoml/BentoML/compare/v1.4.34...v1.4.35

### v1.4.34

- Date: 2026-01-26
- Version: v1.4.34
- Original notes: https://github.com/bentoml/BentoML/releases/tag/v1.4.34
- Permalink: https://whatsnew.fyi/product/bentoml/releases/v1.4.34

- **security** — Fixed a security issue when resolving file paths input by user

- Fixed a security issue when resolving file paths input by user.

**Full Changelog**: https://github.com/bentoml/BentoML/compare/v1.4.33...v1.4.34

### v1.4.33

- Date: 2026-01-12
- Version: v1.4.33
- Original notes: https://github.com/bentoml/BentoML/releases/tag/v1.4.33
- Permalink: https://whatsnew.fyi/product/bentoml/releases/v1.4.33

- **fixed** — update installation logic for Python packages in Dockerfile template

##### What's Changed
* fix: update installation logic for Python packages in Dockerfile template by @frostming in https://github.com/bentoml/BentoML/pull/5534


**Full Changelog**: https://github.com/bentoml/BentoML/compare/v1.4.32...v1.4.33

### v1.4.32

- Date: 2026-01-09
- Version: v1.4.32
- Original notes: https://github.com/bentoml/BentoML/releases/tag/v1.4.32
- Permalink: https://whatsnew.fyi/product/bentoml/releases/v1.4.32

- **fixed** — Ensure at least one CPU worker is assigned when CPU resources are zero
- **fixed** — Update installation path logic for Python packages in Dockerfile template
- **removed** — Remove new image API: build_include
- **fixed** — Sanitize filename with path separators in FileSchema.decode

##### What's Changed
* fix: ensure at least one CPU worker is assigned when CPU resources are zero by @frostming in https://github.com/bentoml/BentoML/pull/5528
* fix: update installation path logic for Python packages in Dockerfile template by @frostming in https://github.com/bentoml/BentoML/pull/5529
* Revert "feat: new image API: build_include" by @frostming in https://github.com/bentoml/BentoML/pull/5531
* ci: pre-commit autoupdate [skip ci] by @pre-commit-ci[bot] in https://github.com/bentoml/BentoML/pull/5530
* fix: sanitize filename with path separators in FileSchema.decode by @Anri-Lombard in https://github.com/bentoml/BentoML/pull/5533

##### New Contributors
* @Anri-Lombard made their first contribution in https://github.com/bentoml/BentoML/pull/5533

**Full Changelog**: https://github.com/bentoml/BentoML/compare/v1.4.31...v1.4.32

### v1.4.31

- Date: 2025-12-23
- Version: v1.4.31
- Original notes: https://github.com/bentoml/BentoML/releases/tag/v1.4.31
- Permalink: https://whatsnew.fyi/product/bentoml/releases/v1.4.31

- **added** — Add build time secrets
- **added** — Add API token SDK
- **added** — Add new image API: build_include
- **added** — Add native prefix routing (root_path) support for BentoML
- **added** — Support stage in secret CLI
- **fixed** — Support max age and max requests for runner connections
- **fixed** — Improve the error message for importing bento

##### What's Changed
* chore: update pre-commit config and fix lint errors by @frostming in https://github.com/bentoml/BentoML/pull/5511
* ci: pre-commit autoupdate [skip ci] by @pre-commit-ci[bot] in https://github.com/bentoml/BentoML/pull/5512
* doc(gateway): add gateway documentation by @ssheng in https://github.com/bentoml/BentoML/pull/5513
* docs: Add gateway screenshots by @Sherlock113 in https://github.com/bentoml/BentoML/pull/5515
* feat: add build time secrets by @jianshen92 in https://github.com/bentoml/BentoML/pull/5514
* feat: API token sdk by @jianshen92 in https://github.com/bentoml/BentoML/pull/5516
* docs: API token SDK documentation by @jianshen92 in https://github.com/bentoml/BentoML/pull/5517
* feat: new image API: build_include by @frostming in https://github.com/bentoml/BentoML/pull/5518
* feature: Add native prefix routing (root_path) support for BentoML by @frostming in https://github.com/bentoml/BentoML/pull/5521
* fix: support max age and max requets for runner connections by @frostming in https://github.com/bentoml/BentoML/pull/5522
* fix: improve the error message for importing bento by @frostming in https://github.com/bentoml/BentoML/pull/5523
* chore(deps): bump actions/download-artifact from 6 to 7 by @dependabot[bot] in https://github.com/bentoml/BentoML/pull/5520
* chore(deps): bump actions/upload-artifact from 5 to 6 by @dependabot[bot] in https://github.com/bentoml/BentoML/pull/5519
* feat: support stage in secret CLI by @jianshen92 in https://github.com/bentoml/BentoML/pull/5526


**Full Changelog**: https://github.com/bentoml/BentoML/compare/v1.4.30...v1.4.31

### v1.4.30

- Date: 2025-11-27
- Version: v1.4.30
- Original notes: https://github.com/bentoml/BentoML/releases/tag/v1.4.30
- Permalink: https://whatsnew.fyi/product/bentoml/releases/v1.4.30

- **fixed** — Fix aiohttp implementation of RemoteProxy for dependency call
- **fixed** — Improve process termination handling in create_proxy_app
- **fixed** — Fix CLI deploy to inject deployment environment variables
- **fixed** — Set default worker count based on available CPU resources
- **fixed** — Ensure at least one worker is set based on CPU resources

##### What's Changed
* chore(deps): bump actions/checkout from 5 to 6 by @dependabot[bot] in https://github.com/bentoml/BentoML/pull/5505
* fix: aiohttp impl of RemoteProxy for dependency call by @frostming in https://github.com/bentoml/BentoML/pull/5502
* docs: update AWS CloudFormation template URL to v9 by @sauyon in https://github.com/bentoml/BentoML/pull/5506
* fix: improve process termination handling in create_proxy_app by @frostming in https://github.com/bentoml/BentoML/pull/5508
* fix: cli deploy to inject deployment env by @jianshen92 in https://github.com/bentoml/BentoML/pull/5507
* fix: set default worker count based on available CPU resources by @frostming in https://github.com/bentoml/BentoML/pull/5509
* fix: ensure at least one worker is set based on CPU resources by @frostming in https://github.com/bentoml/BentoML/pull/5510


**Full Changelog**: https://github.com/bentoml/BentoML/compare/v1.4.29...v1.4.30