---
title: "v1.4.18"
description: "v1.4.18 changelog - 2026-03-29"
---
<Tabs>
  <Tab title="NPX">
    ```bash
    npx -y @maximhq/bifrost --transport-version v1.4.18
    ```
  </Tab>
  <Tab title="Docker">
    ```bash
    docker pull maximhq/bifrost:v1.4.18
    docker run -p 8080:8080 maximhq/bifrost:v1.4.18
    ```
  </Tab>
</Tabs>

<Update label="Bifrost(HTTP)" description="1.4.18">
## ✨ Features

- **Calendar-Aligned Budgets** — Added calendar alignment support for budget periods in governance

## 🐞 Fixed

- **SSE Error Events** — Handle SSE error events for 429 rate-limit and other error status codes during streaming
- **Anthropic Max Tokens** — Pick max tokens for Anthropic from model params cache instead of hardcoded values
- **Anthropic Streaming Usage** — Fixed usage token reporting for Anthropic streaming responses
- **Anthropic Cache Tokens** — Fixed Anthropic cache token reporting in non-streaming responses
- **Embedding Precision** — Preserved provider precision in embedding responses instead of truncating float values
- **Provider Caching** — Removed pending marshal-to-map to fix caching issues at provider level
- **Claude Office Suite** — Fixed support for Claude office suite add-on model routing
- **Semantic Cache Config** — Hardened direct-only config handling and aligned UI types for semantic cache
- **Semantic Cache Count Tokens** — Skip unsupported count_tokens requests in semantic cache plugin
- **Telemetry Events** — Removed reason field from telemetry events
- **CORS Headers** — Fixed wildcard allowed headers for CORS
- **UI Routing Display** — Shows selected virtual key and routing rule in UI

</Update>
<Update label="Core" description="1.4.15">
- fix: handle SSE error events for 429s and other error status codes during streaming
- fix: pick max tokens for Anthropic from model params cache
- fix: fixed Anthropic streaming usage token reporting
- fix: fixed Anthropic cache token reporting
- fix: preserved provider precision in embedding responses
- fix: removed pending marshal-to-map to fix caching issues at provider level
- fix: fixed support for Claude office suite add-on model routing

</Update>
<Update label="Framework" description="1.2.34">
- feat: added CalendarAligned budget field, GetCalendarPeriodStart and IsCalendarAlignableDuration helpers
- fix: pick max tokens for Anthropic from model params cache (model catalog)
- fix: preserved provider precision in embedding responses (log store)
- fix: added migration for calendar_aligned field

</Update>
<Update label="governance" description="1.4.34">
- feat: snap LastReset to calendar boundary for calendar-aligned budgets
- feat: added calendar alignment support for budget periods

</Update>
<Update label="jsonparser" description="1.4.33">
- chore: upgraded core to v1.4.15 and framework to v1.2.34

</Update>
<Update label="litellmcompat" description="0.0.23">
- chore: upgraded core to v1.4.15 and framework to v1.2.34

</Update>
<Update label="logging" description="1.4.34">
- chore: upgraded core to v1.4.15 and framework to v1.2.34

</Update>
<Update label="maxim" description="1.5.33">
- chore: upgraded core to v1.4.15 and framework to v1.2.34

</Update>
<Update label="mocker" description="1.4.33">
- chore: upgraded core to v1.4.15 and framework to v1.2.34

</Update>
<Update label="otel" description="1.1.33">
- chore: upgraded core to v1.4.15 and framework to v1.2.34

</Update>
<Update label="semanticcache" description="1.4.32">
- fix: hardened direct-only config handling and aligned UI types
- fix: preserved provider precision in embedding responses
- fix: skip unsupported count_tokens requests

</Update>
<Update label="telemetry" description="1.4.34">
- fix: removed reason field from telemetry events

</Update>