> ## Documentation Index > Fetch the complete documentation index at: https://docs.getbifrost.ai/llms.txt > Use this file to discover all available pages before exploring further. # v1.5.0-prerelease1 > v1.5.0-prerelease1 changelog - 2026-04-01 ```bash theme={null} npx -y @maximhq/bifrost --transport-version v1.5.0-prerelease1 ``` ```bash theme={null} docker pull maximhq/bifrost:v1.5.0-prerelease1 docker run -p 8080:8080 maximhq/bifrost:v1.5.0-prerelease1 ``` * feat: dedicated provider keys API - keys are now managed via `/api/providers/{provider}/keys` endpoints instead of being embedded in provider create/update payloads * feat: VK provider config key\_ids now supports \["\*"] wildcard to allow all keys; empty key\_ids denies all; handler resolves wildcard to AllowAllKeys flag without DB key lookups * feat: now plugins can start injecting logs at trace level. Just use `ctx.Log(schemas.LogLevelInfo, "Test log")` * feat: add option to disable automatic MCP tool injection per request * feat: virtual key MCP configs now act as an execution-time allow-list - tools not permitted by the VK are blocked at inference and MCP tool execution * refactor: standardize empty array conventions in bifrost. Empty array means no tools/keys are allowed, \["\*"] means all tools/keys are allowed. * feat: add support for request level extra headers in MCP tool execution. * fix: add support for `x-bf-mcp-include-clients` and `x-bf-mcp-include-tools` request headers to filter MCP tools/list response when using bifrost as an MCP gateway. * refactor: parallelize model listing for providers to speed up startup time. * fix: send back accumulated usage in MCP agent mode. * feat: MCP configuration now supports assigning virtual keys with per-tool access control. * feat: adds option to allow MCP clients to run on all virtual keys without explicit assignment. * feat: add support for pricing overrides. * feat: add StabilityAI provider support to Bedrock. * fix: handle text, vtt, srt response formats in OpenAI transcription response. **v1.5.0 contains multiple breaking changes.** See the [v1.5.0 Migration Guide](/migration-guides/v1.5.0) for full before/after examples and a migration checklist. ## Breaking Changes in This Release This prerelease introduces 9 breaking changes. See the **[v1.5.0 Migration Guide](/migration-guides/v1.5.0)** for full before/after examples, automatic migration details, and a step-by-step checklist. | # | Breaking Change | Affected | | ------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------- | ----------------------- | | [1](/migration-guides/v1.5.0#breaking-change-1-empty-array-now-means-deny-all) | Empty array (`[]`) now means "deny all" on all allow-list fields | `config.json`, REST API | | [2](/migration-guides/v1.5.0#breaking-change-2-allowed_keys-renamed-to-key_ids) | `allowed_keys` renamed to `key_ids` in VK provider configs | `config.json`, REST API | | [3](/migration-guides/v1.5.0#breaking-change-3-virtual-key-provider_configs-is-deny-by-default) | Virtual Key `provider_configs` is deny-by-default (empty = no providers) | `config.json`, REST API | | [4](/migration-guides/v1.5.0#breaking-change-4-whitelist-validation) | WhiteList validation: wildcard cannot be mixed, no duplicates | REST API | | [5](/migration-guides/v1.5.0#breaking-change-5-weight-is-now-nullable) | `weight` is now nullable (`*float64`) on VK provider configs | REST API, Go SDK | | [6](/migration-guides/v1.5.0#breaking-change-6-provider-keys-api-separated) | Provider keys API separated - `keys` removed from provider payloads | REST API | | [7](/migration-guides/v1.5.0#breaking-change-7-compact-plugin-restructured) | Compact plugin: `enable_litellm_fallbacks` replaced by three granular options | Plugin config | | [8](/migration-guides/v1.5.0#breaking-change-8-replicate-image-edits-removed-from-generations-endpoint) | Replicate image edits removed from `/v1/images/generations` | REST API | | [9](/migration-guides/v1.5.0#breaking-change-9-ollama-and-sgl-per-key-url-configuration) | Ollama and SGL moved to per-key URL configuration | `config.json`, REST API | | [10](/migration-guides/v1.5.0#breaking-change-10-go-sdk-changes) | Go SDK: `HuggingFaceKeyConfig` removed, `providerRequiresKey()` signature changed | Go SDK | *** * feat: add DisableAutoToolInject to MCPToolManagerConfig to suppress automatic MCP tool injection per request * feat: add BifrostContextKeyMCPAddedTools to context to track MCP tools added to the request * refactor: standardize empty array conventions in bifrost. Empty array means deny all, \["\*"] means allow all for models/tools/keys. * feat: add support for request-level extra headers in MCP tool execution using BifrostContextKeyMCPExtraHeaders key in context. * fix: send back accumulated usage in MCP agent mode. * feat: add StabilityAI provider support to Bedrock. * fix: handle text, vtt, srt response formats in OpenAI transcription response. * feat: add provider keys CRUD to configstore and in-memory store * feat: add virtual key access management for MCP clients * feat: adds option to allow MCP clients to run on all virtual keys * feat: add image edit input view on logs * refactor: replace string slice with WhiteList type for model restrictions * refactor: blacklist models on new convention * fix: add blacklisted model field in tableKeyFromSchemaKey * feat: logging in plugins * chore: adds migration guide for 1.5 and test fixes * refactor: standardize empty array conventions for VK Provider & MCP Configs, and makes Provider Config weight optional for routing * feat: VK MCP config now works as an AllowList * refactor: standardize empty array conventions for VK Provider Config Allowed Keys * refactor: standardize empty array conventions for allowed models * refactor: replace string slices with WhiteList for allowlist fields * feat: implement scoped pricing override * refactor: custom pricing refactor * feat: adds option to allow MCP clients to run on all virtual keys * refactor: blacklist models on new convention * chore: upgraded core to v1.5.0 and framework to v1.3.0 * chore: upgraded core to v1.5.0 and framework to v1.3.0 * feat: add image edit input view on logs * feat: logging in plugins * feat: implement scoped pricing override * refactor: custom pricing refactor * chore: upgraded core to v1.5.0 and framework to v1.3.0 * chore: upgraded core to v1.5.0 and framework to v1.3.0 * chore: upgraded core to v1.5.0 and framework to v1.3.0 * chore: upgraded core to v1.5.0 and framework to v1.3.0 * feat: implement scoped pricing override * refactor: custom pricing refactor