---
title: "v1.3.15"
description: "v1.3.15 changelog"
---

<Update label="Bifrost Enterprise" description="v1.3.15">

## Changelog

This release pins Bifrost OSS dependencies to stable release tags (transports/v1.4.18), includes calendar-aligned budgets along with numerous streaming and caching fixes.

## ✨ 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

## 📀 Base OSS version

`transports/v1.4.18`

## 🔌 If you are compiling plugin against this release - use following deps

```
module github.com/maximhq/bifrost-enterprise

go 1.26.1

require (
	cloud.google.com/go/bigquery v1.73.1
	github.com/DataDog/datadog-go/v5 v5.6.0
	github.com/DataDog/dd-trace-go/v2 v2.4.0
	github.com/aws/aws-sdk-go-v2/config v1.32.11
	github.com/aws/aws-sdk-go-v2/credentials v1.19.11
	github.com/aws/aws-sdk-go-v2/service/bedrockruntime v1.50.1
	github.com/bytedance/sonic v1.15.0
	github.com/coreos/go-oidc/v3 v3.12.0
	github.com/fasthttp/router v1.5.4
	github.com/golang-jwt/jwt/v5 v5.3.0
	github.com/google/cel-go v0.26.1
	github.com/google/uuid v1.6.0
	github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674
	github.com/grandcat/zeroconf v1.0.0
	github.com/hashicorp/consul/api v1.22.0
	github.com/hashicorp/memberlist v0.5.4
	github.com/maximhq/bifrost/core v1.4.15
	github.com/maximhq/bifrost/framework v1.2.34
	github.com/maximhq/bifrost/plugins/governance v1.4.34
	github.com/maximhq/bifrost/plugins/logging v1.4.34
	github.com/maximhq/bifrost/transports v1.4.18
	github.com/nakabonne/tstorage v0.3.6
	github.com/stretchr/testify v1.11.1
	github.com/testcontainers/testcontainers-go v0.40.0
	github.com/tetratelabs/wazero v1.11.0
	github.com/valyala/fasthttp v1.68.0
	go.etcd.io/etcd/client/v3 v3.6.6
	golang.org/x/crypto v0.49.0
	golang.org/x/oauth2 v0.35.0
	google.golang.org/api v0.265.0
	google.golang.org/protobuf v1.36.11
	gorm.io/driver/sqlite v1.6.0
	gorm.io/gorm v1.31.1
	k8s.io/api v0.34.1
	k8s.io/apimachinery v0.34.1
	k8s.io/client-go v0.34.1
)

require (
	cel.dev/expr v0.25.1 // indirect
	cloud.google.com/go v0.123.0 // indirect
	cloud.google.com/go/auth v0.18.1 // indirect
	cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
	cloud.google.com/go/compute/metadata v0.9.0 // indirect
	cloud.google.com/go/iam v1.5.3 // indirect
	dario.cat/mergo v1.0.2 // indirect
	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.20.0 // indirect
	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.13.1 // indirect
	github.com/Azure/azure-sdk-for-go/sdk/internal v1.11.2 // indirect
	github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c // indirect
	github.com/AzureAD/microsoft-authentication-library-for-go v1.6.0 // indirect
	github.com/DataDog/datadog-agent/comp/core/tagger/origindetection v0.71.0 // indirect
	github.com/DataDog/datadog-agent/pkg/obfuscate v0.71.0 // indirect
	github.com/DataDog/datadog-agent/pkg/opentelemetry-mapping-go/otlp/attributes v0.71.0 // indirect
	github.com/DataDog/datadog-agent/pkg/proto v0.71.0 // indirect
	github.com/DataDog/datadog-agent/pkg/remoteconfig/state v0.73.0-rc.1 // indirect
	github.com/DataDog/datadog-agent/pkg/trace v0.71.0 // indirect
	github.com/DataDog/datadog-agent/pkg/util/log v0.71.0 // indirect
	github.com/DataDog/datadog-agent/pkg/util/scrubber v0.71.0 // indirect
	github.com/DataDog/datadog-agent/pkg/version v0.71.0 // indirect
	github.com/DataDog/go-libddwaf/v4 v4.6.1 // indirect
	github.com/DataDog/go-runtime-metrics-internal v0.0.4-0.20250721125240-fdf1ef85b633 // indirect
	github.com/DataDog/go-sqllexer v0.1.8 // indirect
	github.com/DataDog/go-tuf v1.1.1-0.5.2 // indirect
	github.com/DataDog/sketches-go v1.4.7 // indirect
	github.com/Masterminds/semver/v3 v3.3.1 // indirect
	github.com/Microsoft/go-winio v0.6.2 // indirect
	github.com/andybalholm/brotli v1.2.0 // indirect
	github.com/antlr4-go/antlr/v4 v4.13.0 // indirect
	github.com/apache/arrow/go/v15 v15.0.2 // indirect
	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
	github.com/armon/go-metrics v0.4.1 // indirect
	github.com/aws/aws-sdk-go-v2 v1.41.3 // indirect
	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.6 // indirect
	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.19 // indirect
	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.19 // indirect
	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.19 // indirect
	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.5 // indirect
	github.com/aws/aws-sdk-go-v2/internal/v4a v1.4.16 // indirect
	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.6 // indirect
	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.9.7 // indirect
	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.19 // indirect
	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.16 // indirect
	github.com/aws/aws-sdk-go-v2/service/s3 v1.94.0 // indirect
	github.com/aws/aws-sdk-go-v2/service/signin v1.0.7 // indirect
	github.com/aws/aws-sdk-go-v2/service/sso v1.30.12 // indirect
	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.16 // indirect
	github.com/aws/aws-sdk-go-v2/service/sts v1.41.8 // indirect
	github.com/aws/smithy-go v1.24.2 // indirect
	github.com/bahlo/generic-list-go v0.2.0 // indirect
	github.com/beorn7/perks v1.0.1 // indirect
	github.com/buger/jsonparser v1.1.2 // indirect
	github.com/bytedance/gopkg v0.1.3 // indirect
	github.com/bytedance/sonic/loader v0.5.0 // indirect
	github.com/cenkalti/backoff v2.2.1+incompatible // indirect
	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
	github.com/cespare/xxhash/v2 v2.3.0 // indirect
	github.com/cihub/seelog v0.0.0-20170130134532-f561c5e57575 // indirect
	github.com/cloudwego/base64x v0.1.6 // indirect
	github.com/containerd/errdefs v1.0.0 // indirect
	github.com/containerd/errdefs/pkg v0.3.0 // indirect
	github.com/containerd/log v0.1.0 // indirect
	github.com/containerd/platforms v0.2.1 // indirect
	github.com/coreos/go-semver v0.3.1 // indirect
	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
	github.com/cpuguy83/dockercfg v0.3.2 // indirect
	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
	github.com/distribution/reference v0.6.0 // indirect
	github.com/docker/docker v28.5.2+incompatible // indirect
	github.com/docker/go-connections v0.6.0 // indirect
	github.com/docker/go-units v0.5.0 // indirect
	github.com/dustin/go-humanize v1.0.1 // indirect
	github.com/ebitengine/purego v0.9.1 // indirect
	github.com/emicklei/go-restful/v3 v3.12.2 // indirect
	github.com/fasthttp/websocket v1.5.12 // indirect
	github.com/fatih/color v1.17.0 // indirect
	github.com/felixge/httpsnoop v1.0.4 // indirect
	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
	github.com/go-jose/go-jose/v4 v4.1.3 // indirect
	github.com/go-logr/logr v1.4.3 // indirect
	github.com/go-logr/stdr v1.2.2 // indirect
	github.com/go-ole/go-ole v1.3.0 // indirect
	github.com/go-openapi/analysis v0.24.2 // indirect
	github.com/go-openapi/errors v0.22.5 // indirect
	github.com/go-openapi/jsonpointer v0.22.4 // indirect
	github.com/go-openapi/jsonreference v0.21.4 // indirect
	github.com/go-openapi/loads v0.23.2 // indirect
	github.com/go-openapi/runtime v0.29.2 // indirect
	github.com/go-openapi/spec v0.22.2 // indirect
	github.com/go-openapi/strfmt v0.25.0 // indirect
	github.com/go-openapi/swag v0.25.4 // indirect
	github.com/go-openapi/swag/cmdutils v0.25.4 // indirect
	github.com/go-openapi/swag/conv v0.25.4 // indirect
	github.com/go-openapi/swag/fileutils v0.25.4 // indirect
	github.com/go-openapi/swag/jsonname v0.25.4 // indirect
	github.com/go-openapi/swag/jsonutils v0.25.4 // indirect
	github.com/go-openapi/swag/loading v0.25.4 // indirect
	github.com/go-openapi/swag/mangling v0.25.4 // indirect
	github.com/go-openapi/swag/netutils v0.25.4 // indirect
	github.com/go-openapi/swag/stringutils v0.25.4 // indirect
	github.com/go-openapi/swag/typeutils v0.25.4 // indirect
	github.com/go-openapi/swag/yamlutils v0.25.4 // indirect
	github.com/go-openapi/validate v0.25.1 // indirect
	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
	github.com/goccy/go-json v0.10.5 // indirect
	github.com/gogo/protobuf v1.3.2 // indirect
	github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 // indirect
	github.com/golang/protobuf v1.5.4 // indirect
	github.com/google/btree v1.1.3 // indirect
	github.com/google/flatbuffers v23.5.26+incompatible // indirect
	github.com/google/gnostic-models v0.7.0 // indirect
	github.com/google/pprof v0.0.0-20251213031049-b05bdaca462f // indirect
	github.com/google/s2a-go v0.1.9 // indirect
	github.com/googleapis/enterprise-certificate-proxy v0.3.11 // indirect
	github.com/googleapis/gax-go/v2 v2.17.0 // indirect
	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.7 // indirect
	github.com/hashicorp/errwrap v1.1.0 // indirect
	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
	github.com/hashicorp/go-hclog v1.6.3 // indirect
	github.com/hashicorp/go-immutable-radix v1.3.1 // indirect
	github.com/hashicorp/go-metrics v0.5.4 // indirect
	github.com/hashicorp/go-msgpack/v2 v2.1.5 // indirect
	github.com/hashicorp/go-multierror v1.1.1 // indirect
	github.com/hashicorp/go-rootcerts v1.0.2 // indirect
	github.com/hashicorp/go-sockaddr v1.0.7 // indirect
	github.com/hashicorp/go-version v1.7.0 // indirect
	github.com/hashicorp/golang-lru v1.0.2 // indirect
	github.com/hashicorp/serf v0.10.1 // indirect
	github.com/invopop/jsonschema v0.13.0 // indirect
	github.com/jackc/pgpassfile v1.0.0 // indirect
	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
	github.com/jackc/pgx/v5 v5.7.6 // indirect
	github.com/jackc/puddle/v2 v2.2.2 // indirect
	github.com/jaswdr/faker/v2 v2.8.0 // indirect
	github.com/jinzhu/inflection v1.0.0 // indirect
	github.com/jinzhu/now v1.1.5 // indirect
	github.com/json-iterator/go v1.1.12 // indirect
	github.com/klauspost/compress v1.18.2 // indirect
	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
	github.com/kylelemons/godebug v1.1.0 // indirect
	github.com/lufia/plan9stats v0.0.0-20251013123823-9fd1530e3ec3 // indirect
	github.com/magiconair/properties v1.8.10 // indirect
	github.com/mailru/easyjson v0.9.1 // indirect
	github.com/mark3labs/mcp-go v0.43.2 // indirect
	github.com/mattn/go-colorable v0.1.14 // indirect
	github.com/mattn/go-isatty v0.0.20 // indirect
	github.com/mattn/go-sqlite3 v1.14.32 // indirect
	github.com/maximhq/bifrost/plugins/litellmcompat v0.0.23 // indirect
	github.com/maximhq/bifrost/plugins/maxim v1.5.33 // indirect
	github.com/maximhq/bifrost/plugins/mocker v1.4.33 // indirect
	github.com/maximhq/bifrost/plugins/otel v1.1.33 // indirect
	github.com/maximhq/bifrost/plugins/semanticcache v1.4.32 // indirect
	github.com/maximhq/bifrost/plugins/telemetry v1.4.34 // indirect
	github.com/maximhq/maxim-go v0.2.0 // indirect
	github.com/miekg/dns v1.1.68 // indirect
	github.com/minio/simdjson-go v0.4.5 // indirect
	github.com/mitchellh/go-homedir v1.1.0 // indirect
	github.com/mitchellh/mapstructure v1.5.0 // indirect
	github.com/moby/docker-image-spec v1.3.1 // indirect
	github.com/moby/go-archive v0.1.0 // indirect
	github.com/moby/patternmatcher v0.6.0 // indirect
	github.com/moby/sys/sequential v0.6.0 // indirect
	github.com/moby/sys/user v0.4.0 // indirect
	github.com/moby/sys/userns v0.1.0 // indirect
	github.com/moby/term v0.5.2 // indirect
	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
	github.com/morikuni/aec v1.0.0 // indirect
	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
	github.com/oapi-codegen/runtime v1.1.1 // indirect
	github.com/oklog/ulid v1.3.1 // indirect
	github.com/opencontainers/go-digest v1.0.0 // indirect
	github.com/opencontainers/image-spec v1.1.1 // indirect
	github.com/outcaste-io/ristretto v0.2.3 // indirect
	github.com/philhofer/fwd v1.2.0 // indirect
	github.com/pierrec/lz4/v4 v4.1.21 // indirect
	github.com/pinecone-io/go-pinecone/v5 v5.3.0 // indirect
	github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c // indirect
	github.com/pkg/errors v0.9.1 // indirect
	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
	github.com/prometheus/client_golang v1.23.2 // indirect
	github.com/prometheus/client_model v0.6.2 // indirect
	github.com/prometheus/common v0.66.1 // indirect
	github.com/prometheus/procfs v0.17.0 // indirect
	github.com/puzpuzpuz/xsync/v3 v3.5.1 // indirect
	github.com/qdrant/go-client v1.16.2 // indirect
	github.com/redis/go-redis/v9 v9.17.2 // indirect
	github.com/rs/zerolog v1.34.0 // indirect
	github.com/santhosh-tekuri/jsonschema/v6 v6.0.2 // indirect
	github.com/savsgio/gotils v0.0.0-20250408102913-196191ec6287 // indirect
	github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529 // indirect
	github.com/secure-systems-lab/go-securesystemslib v0.9.0 // indirect
	github.com/shirou/gopsutil/v4 v4.25.10 // indirect
	github.com/sirupsen/logrus v1.9.4 // indirect
	github.com/spf13/cast v1.10.0 // indirect
	github.com/stoewer/go-strcase v1.3.0 // indirect
	github.com/theckman/httpforwarded v0.4.0 // indirect
	github.com/tidwall/gjson v1.18.0 // indirect
	github.com/tidwall/match v1.1.1 // indirect
	github.com/tidwall/pretty v1.2.0 // indirect
	github.com/tidwall/sjson v1.2.5 // indirect
	github.com/tinylib/msgp v1.3.0 // indirect
	github.com/tklauser/go-sysconf v0.3.16 // indirect
	github.com/tklauser/numcpus v0.11.0 // indirect
	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
	github.com/valyala/bytebufferpool v1.0.0 // indirect
	github.com/weaviate/weaviate v1.36.5 // indirect
	github.com/weaviate/weaviate-go-client/v5 v5.7.1 // indirect
	github.com/wk8/go-ordered-map/v2 v2.1.8 // indirect
	github.com/x448/float16 v0.8.4 // indirect
	github.com/yosida95/uritemplate/v3 v3.0.2 // indirect
	github.com/yusufpapurcu/wmi v1.2.4 // indirect
	github.com/zeebo/xxh3 v1.0.2 // indirect
	go.etcd.io/etcd/api/v3 v3.6.6 // indirect
	go.etcd.io/etcd/client/pkg/v3 v3.6.6 // indirect
	go.mongodb.org/mongo-driver v1.17.6 // indirect
	go.opencensus.io v0.24.0 // indirect
	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
	go.opentelemetry.io/collector/component v1.39.0 // indirect
	go.opentelemetry.io/collector/featuregate v1.39.0 // indirect
	go.opentelemetry.io/collector/internal/telemetry v0.133.0 // indirect
	go.opentelemetry.io/collector/pdata v1.39.0 // indirect
	go.opentelemetry.io/contrib/bridges/otelzap v0.12.0 // indirect
	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.63.0 // indirect
	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.63.0 // indirect
	go.opentelemetry.io/otel v1.40.0 // indirect
	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.40.0 // indirect
	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.40.0 // indirect
	go.opentelemetry.io/otel/log v0.14.0 // indirect
	go.opentelemetry.io/otel/metric v1.40.0 // indirect
	go.opentelemetry.io/otel/sdk v1.40.0 // indirect
	go.opentelemetry.io/otel/sdk/metric v1.40.0 // indirect
	go.opentelemetry.io/otel/trace v1.40.0 // indirect
	go.opentelemetry.io/proto/otlp v1.9.0 // indirect
	go.starlark.net v0.0.0-20260102030733-3fee463870c9 // indirect
	go.uber.org/atomic v1.11.0 // indirect
	go.uber.org/multierr v1.11.0 // indirect
	go.uber.org/zap v1.27.0 // indirect
	go.yaml.in/yaml/v2 v2.4.2 // indirect
	go.yaml.in/yaml/v3 v3.0.4 // indirect
	golang.org/x/arch v0.23.0 // indirect
	golang.org/x/exp v0.0.0-20251113190631-e25ba8c21ef6 // indirect
	golang.org/x/mod v0.33.0 // indirect
	golang.org/x/net v0.52.0 // indirect
	golang.org/x/sync v0.20.0 // indirect
	golang.org/x/sys v0.42.0 // indirect
	golang.org/x/telemetry v0.0.0-20260209163413-e7419c687ee4 // indirect
	golang.org/x/term v0.41.0 // indirect
	golang.org/x/text v0.35.0 // indirect
	golang.org/x/time v0.14.0 // indirect
	golang.org/x/tools v0.42.0 // indirect
	golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da // indirect
	google.golang.org/genproto v0.0.0-20260128011058-8636f8732409 // indirect
	google.golang.org/genproto/googleapis/api v0.0.0-20260203192932-546029d2fa20 // indirect
	google.golang.org/genproto/googleapis/rpc v0.0.0-20260319201613-d00831a3d3e7 // indirect
	google.golang.org/grpc v1.79.3 // indirect
	gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect
	gopkg.in/inf.v0 v0.9.1 // indirect
	gopkg.in/ini.v1 v1.67.0 // indirect
	gopkg.in/yaml.v3 v3.0.1 // indirect
	gorm.io/driver/postgres v1.6.0 // indirect
	k8s.io/klog/v2 v2.130.1 // indirect
	k8s.io/kube-openapi v0.0.0-20250710124328-f3f2b991d03b // indirect
	k8s.io/utils v0.0.0-20250604170112-4c0f3b243397 // indirect
	sigs.k8s.io/json v0.0.0-20241014173422-cfa47c3a1cc8 // indirect
	sigs.k8s.io/randfill v1.0.0 // indirect
	sigs.k8s.io/structured-merge-diff/v6 v6.3.0 // indirect
	sigs.k8s.io/yaml v1.6.0 // indirect
)
```

</Update>
