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Merged
stainless-app merged 2 commits into from
Feb 19, 2026
Merged

release: 1.25.1 #281

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9115a61
fix(client): use correct format specifier for header serialization
stainless-app[bot] Feb 18, 2026
59b50f0
release: 1.25.1
stainless-app[bot] Feb 19, 2026
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2 changes: 1 addition & 1 deletion .release-please-manifest.json
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@@ -1,3 +1,3 @@
{
".": "1.25.0"
".": "1.25.1"
}
8 changes: 8 additions & 0 deletions CHANGELOG.md
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@@ -1,5 +1,13 @@
# Changelog

## 1.25.1 (2026-02-19)

Full Changelog: [v1.25.0...v1.25.1](https://github.com/anthropics/anthropic-sdk-go/compare/v1.25.0...v1.25.1)

### Bug Fixes

* **client:** use correct format specifier for header serialization ([9115a61](https://github.com/anthropics/anthropic-sdk-go/commit/9115a6154d0b1ba94370911822986b2ef8584e9a))

## 1.25.0 (2026-02-18)

Full Changelog: [v1.24.0...v1.25.0](https://github.com/anthropics/anthropic-sdk-go/compare/v1.24.0...v1.25.0)
Expand Down
2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -26,7 +26,7 @@ Or to pin the version:
<!-- x-release-please-start-version -->

```sh
go get -u 'github.com/anthropics/anthropic-sdk-go@v1.25.0'
go get -u 'github.com/anthropics/anthropic-sdk-go@v1.25.1'
```

<!-- x-release-please-end -->
Expand Down
10 changes: 5 additions & 5 deletions betafile.go
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Expand Up @@ -48,7 +48,7 @@ func NewBetaFileService(opts ...option.RequestOption) (r BetaFileService) {
func (r *BetaFileService) List(ctx context.Context, params BetaFileListParams, opts ...option.RequestOption) (res *pagination.Page[FileMetadata], err error) {
var raw *http.Response
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "files-api-2025-04-14"), option.WithResponseInto(&raw)}, opts...)
Expand All @@ -73,7 +73,7 @@ func (r *BetaFileService) ListAutoPaging(ctx context.Context, params BetaFileLis
// Delete File
func (r *BetaFileService) Delete(ctx context.Context, fileID string, body BetaFileDeleteParams, opts ...option.RequestOption) (res *DeletedFile, err error) {
for _, v := range body.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "files-api-2025-04-14")}, opts...)
Expand All @@ -89,7 +89,7 @@ func (r *BetaFileService) Delete(ctx context.Context, fileID string, body BetaFi
// Download File
func (r *BetaFileService) Download(ctx context.Context, fileID string, query BetaFileDownloadParams, opts ...option.RequestOption) (res *http.Response, err error) {
for _, v := range query.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "files-api-2025-04-14"), option.WithHeader("Accept", "application/binary")}, opts...)
Expand All @@ -105,7 +105,7 @@ func (r *BetaFileService) Download(ctx context.Context, fileID string, query Bet
// Get File Metadata
func (r *BetaFileService) GetMetadata(ctx context.Context, fileID string, query BetaFileGetMetadataParams, opts ...option.RequestOption) (res *FileMetadata, err error) {
for _, v := range query.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "files-api-2025-04-14")}, opts...)
Expand All @@ -121,7 +121,7 @@ func (r *BetaFileService) GetMetadata(ctx context.Context, fileID string, query
// Upload File
func (r *BetaFileService) Upload(ctx context.Context, params BetaFileUploadParams, opts ...option.RequestOption) (res *FileMetadata, err error) {
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "files-api-2025-04-14")}, opts...)
Expand Down
6 changes: 3 additions & 3 deletions betamessage.go
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Expand Up @@ -53,7 +53,7 @@ func NewBetaMessageService(opts ...option.RequestOption) (r BetaMessageService)
// Note: If you choose to set a timeout for this request, we recommend 10 minutes.
func (r *BetaMessageService) New(ctx context.Context, params BetaMessageNewParams, opts ...option.RequestOption) (res *BetaMessage, err error) {
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)

Expand Down Expand Up @@ -86,7 +86,7 @@ func (r *BetaMessageService) NewStreaming(ctx context.Context, params BetaMessag
err error
)
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append(opts, option.WithJSONSet("stream", true))
Expand All @@ -104,7 +104,7 @@ func (r *BetaMessageService) NewStreaming(ctx context.Context, params BetaMessag
// [user guide](https://docs.claude.com/en/docs/build-with-claude/token-counting)
func (r *BetaMessageService) CountTokens(ctx context.Context, params BetaMessageCountTokensParams, opts ...option.RequestOption) (res *BetaMessageTokensCount, err error) {
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
path := "v1/messages/count_tokens?beta=true"
Expand Down
12 changes: 6 additions & 6 deletions betamessagebatch.go
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Expand Up @@ -52,7 +52,7 @@ func NewBetaMessageBatchService(opts ...option.RequestOption) (r BetaMessageBatc
// [user guide](https://docs.claude.com/en/docs/build-with-claude/batch-processing)
func (r *BetaMessageBatchService) New(ctx context.Context, params BetaMessageBatchNewParams, opts ...option.RequestOption) (res *BetaMessageBatch, err error) {
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "message-batches-2024-09-24")}, opts...)
Expand All @@ -69,7 +69,7 @@ func (r *BetaMessageBatchService) New(ctx context.Context, params BetaMessageBat
// [user guide](https://docs.claude.com/en/docs/build-with-claude/batch-processing)
func (r *BetaMessageBatchService) Get(ctx context.Context, messageBatchID string, query BetaMessageBatchGetParams, opts ...option.RequestOption) (res *BetaMessageBatch, err error) {
for _, v := range query.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "message-batches-2024-09-24")}, opts...)
Expand All @@ -90,7 +90,7 @@ func (r *BetaMessageBatchService) Get(ctx context.Context, messageBatchID string
func (r *BetaMessageBatchService) List(ctx context.Context, params BetaMessageBatchListParams, opts ...option.RequestOption) (res *pagination.Page[BetaMessageBatch], err error) {
var raw *http.Response
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "message-batches-2024-09-24"), option.WithResponseInto(&raw)}, opts...)
Expand Down Expand Up @@ -125,7 +125,7 @@ func (r *BetaMessageBatchService) ListAutoPaging(ctx context.Context, params Bet
// [user guide](https://docs.claude.com/en/docs/build-with-claude/batch-processing)
func (r *BetaMessageBatchService) Delete(ctx context.Context, messageBatchID string, body BetaMessageBatchDeleteParams, opts ...option.RequestOption) (res *BetaDeletedMessageBatch, err error) {
for _, v := range body.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "message-batches-2024-09-24")}, opts...)
Expand All @@ -152,7 +152,7 @@ func (r *BetaMessageBatchService) Delete(ctx context.Context, messageBatchID str
// [user guide](https://docs.claude.com/en/docs/build-with-claude/batch-processing)
func (r *BetaMessageBatchService) Cancel(ctx context.Context, messageBatchID string, body BetaMessageBatchCancelParams, opts ...option.RequestOption) (res *BetaMessageBatch, err error) {
for _, v := range body.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "message-batches-2024-09-24")}, opts...)
Expand All @@ -179,7 +179,7 @@ func (r *BetaMessageBatchService) ResultsStreaming(ctx context.Context, messageB
err error
)
for _, v := range query.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "message-batches-2024-09-24"), option.WithHeader("Accept", "application/x-jsonl")}, opts...)
Expand Down
4 changes: 2 additions & 2 deletions betamodel.go
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Expand Up @@ -46,7 +46,7 @@ func NewBetaModelService(opts ...option.RequestOption) (r BetaModelService) {
// model or resolve a model alias to a model ID.
func (r *BetaModelService) Get(ctx context.Context, modelID string, query BetaModelGetParams, opts ...option.RequestOption) (res *BetaModelInfo, err error) {
for _, v := range query.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
if modelID == "" {
Expand All @@ -65,7 +65,7 @@ func (r *BetaModelService) Get(ctx context.Context, modelID string, query BetaMo
func (r *BetaModelService) List(ctx context.Context, params BetaModelListParams, opts ...option.RequestOption) (res *pagination.Page[BetaModelInfo], err error) {
var raw *http.Response
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithResponseInto(&raw)}, opts...)
Expand Down
8 changes: 4 additions & 4 deletions betaskill.go
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Expand Up @@ -47,7 +47,7 @@ func NewBetaSkillService(opts ...option.RequestOption) (r BetaSkillService) {
// Create Skill
func (r *BetaSkillService) New(ctx context.Context, params BetaSkillNewParams, opts ...option.RequestOption) (res *BetaSkillNewResponse, err error) {
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "skills-2025-10-02")}, opts...)
Expand All @@ -59,7 +59,7 @@ func (r *BetaSkillService) New(ctx context.Context, params BetaSkillNewParams, o
// Get Skill
func (r *BetaSkillService) Get(ctx context.Context, skillID string, query BetaSkillGetParams, opts ...option.RequestOption) (res *BetaSkillGetResponse, err error) {
for _, v := range query.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "skills-2025-10-02")}, opts...)
Expand All @@ -76,7 +76,7 @@ func (r *BetaSkillService) Get(ctx context.Context, skillID string, query BetaSk
func (r *BetaSkillService) List(ctx context.Context, params BetaSkillListParams, opts ...option.RequestOption) (res *pagination.PageCursor[BetaSkillListResponse], err error) {
var raw *http.Response
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "skills-2025-10-02"), option.WithResponseInto(&raw)}, opts...)
Expand All @@ -101,7 +101,7 @@ func (r *BetaSkillService) ListAutoPaging(ctx context.Context, params BetaSkillL
// Delete Skill
func (r *BetaSkillService) Delete(ctx context.Context, skillID string, body BetaSkillDeleteParams, opts ...option.RequestOption) (res *BetaSkillDeleteResponse, err error) {
for _, v := range body.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "skills-2025-10-02")}, opts...)
Expand Down
8 changes: 4 additions & 4 deletions betaskillversion.go
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Expand Up @@ -45,7 +45,7 @@ func NewBetaSkillVersionService(opts ...option.RequestOption) (r BetaSkillVersio
// Create Skill Version
func (r *BetaSkillVersionService) New(ctx context.Context, skillID string, params BetaSkillVersionNewParams, opts ...option.RequestOption) (res *BetaSkillVersionNewResponse, err error) {
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "skills-2025-10-02")}, opts...)
Expand All @@ -61,7 +61,7 @@ func (r *BetaSkillVersionService) New(ctx context.Context, skillID string, param
// Get Skill Version
func (r *BetaSkillVersionService) Get(ctx context.Context, version string, params BetaSkillVersionGetParams, opts ...option.RequestOption) (res *BetaSkillVersionGetResponse, err error) {
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "skills-2025-10-02")}, opts...)
Expand All @@ -82,7 +82,7 @@ func (r *BetaSkillVersionService) Get(ctx context.Context, version string, param
func (r *BetaSkillVersionService) List(ctx context.Context, skillID string, params BetaSkillVersionListParams, opts ...option.RequestOption) (res *pagination.PageCursor[BetaSkillVersionListResponse], err error) {
var raw *http.Response
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "skills-2025-10-02"), option.WithResponseInto(&raw)}, opts...)
Expand Down Expand Up @@ -111,7 +111,7 @@ func (r *BetaSkillVersionService) ListAutoPaging(ctx context.Context, skillID st
// Delete Skill Version
func (r *BetaSkillVersionService) Delete(ctx context.Context, version string, params BetaSkillVersionDeleteParams, opts ...option.RequestOption) (res *BetaSkillVersionDeleteResponse, err error) {
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithHeader("anthropic-beta", "skills-2025-10-02")}, opts...)
Expand Down
4 changes: 2 additions & 2 deletions completion.go
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Expand Up @@ -48,7 +48,7 @@ func NewCompletionService(opts ...option.RequestOption) (r CompletionService) {
// Note: If you choose to set a timeout for this request, we recommend 10 minutes.
func (r *CompletionService) New(ctx context.Context, params CompletionNewParams, opts ...option.RequestOption) (res *Completion, err error) {
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
path := "v1/complete"
Expand All @@ -72,7 +72,7 @@ func (r *CompletionService) NewStreaming(ctx context.Context, params CompletionN
err error
)
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append(opts, option.WithJSONSet("stream", true))
Expand Down
2 changes: 1 addition & 1 deletion internal/version.go
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Expand Up @@ -2,4 +2,4 @@

package internal

const PackageVersion = "1.25.0" // x-release-please-version
const PackageVersion = "1.25.1" // x-release-please-version
4 changes: 2 additions & 2 deletions model.go
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Expand Up @@ -46,7 +46,7 @@ func NewModelService(opts ...option.RequestOption) (r ModelService) {
// model or resolve a model alias to a model ID.
func (r *ModelService) Get(ctx context.Context, modelID string, query ModelGetParams, opts ...option.RequestOption) (res *ModelInfo, err error) {
for _, v := range query.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
if modelID == "" {
Expand All @@ -65,7 +65,7 @@ func (r *ModelService) Get(ctx context.Context, modelID string, query ModelGetPa
func (r *ModelService) List(ctx context.Context, params ModelListParams, opts ...option.RequestOption) (res *pagination.Page[ModelInfo], err error) {
var raw *http.Response
for _, v := range params.Betas {
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%s", v)))
opts = append(opts, option.WithHeaderAdd("anthropic-beta", fmt.Sprintf("%v", v)))
}
opts = slices.Concat(r.Options, opts)
opts = append([]option.RequestOption{option.WithResponseInto(&raw)}, opts...)
Expand Down
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