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bifrost/docs/changelogs/v1.4.19.mdx
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2026-04-26 21:52:23 +03:00

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---
title: "v1.4.19"
description: "v1.4.19 changelog - 2026-03-31"
---
<Tabs>
<Tab title="NPX">
```bash
npx -y @maximhq/bifrost --transport-version v1.4.19
```
</Tab>
<Tab title="Docker">
```bash
docker pull maximhq/bifrost:v1.4.19
docker run -p 8080:8080 maximhq/bifrost:v1.4.19
```
</Tab>
</Tabs>
<Update label="Bifrost(HTTP)" description="1.4.19">
## ✨ Features
- **Model Details API** — Added /api/models/details endpoint for model capability metadata
- **Anthropic Beta Headers** — Support for Anthropic beta feature headers in requests
## 🐞 Fixed
- **Reasoning Content Leak** — Prevented reasoning text from leaking into Gemini response content
- **Timeout Status Code** — Fixed timeout status code handling across all providers
- **Cross-Provider Cache** — Preserved cached provider metadata on cross-provider cache hits
- **Governance Virtual Keys** — Populated customer virtual_keys in governance APIs
- **List Models Integration** — Removed default provider override on list models request in integrations
- **Client Settings Headers** — Fixed Client settings UI to accept * as allowed headers
## 🔧 Maintenance
- **FIPS Docker Image** — Switched to FIPS-compliant base image for Docker builds
- **Security Hardening** — Applied StepSecurity best practices to CI/CD pipeline (thanks [@step-security-bot](https://github.com/step-security-bot)!)
- **Snyk Fixes** — Addressed Snyk vulnerability findings in Docker configuration
</Update>
<Update label="Core" description="1.4.16">
- fix: fixed timeout status code handling across all providers
- fix: preserve cached provider metadata on cross-provider cache hits
- fix: prevent reasoning text from leaking into Gemini response content
- feat: added Anthropic beta headers support
</Update>
<Update label="Framework" description="1.2.35">
- feat: added /api/models/details endpoint with model capability metadata
- fix: populate customer virtual_keys in governance APIs
- fix: enterprise model catalog sync improvements
</Update>
<Update label="governance" description="1.4.35">
- fix: populate customer virtual_keys in governance APIs
</Update>
<Update label="jsonparser" description="1.4.34">
- chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>
<Update label="litellmcompat" description="0.0.24">
- chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>
<Update label="logging" description="1.4.35">
- chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>
<Update label="maxim" description="1.5.34">
- chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>
<Update label="mocker" description="1.4.34">
- chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>
<Update label="otel" description="1.1.34">
- chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>
<Update label="semanticcache" description="1.4.33">
- fix: preserve cached provider metadata on cross-provider cache hits
</Update>
<Update label="telemetry" description="1.4.35">
- chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>