# Changelog

## 0.36.0 (2026-07-02)

Full Changelog: [v0.35.1...v0.36.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.35.1...v0.36.0)

### Features

* **api:** add agent-memory-2026-07-22 beta header ([96ec8ca](https://github.com/anthropics/anthropic-sdk-php/commit/96ec8ca5dbacc91ff1123f44593a6439fd6a4be1))

## 0.35.1 (2026-07-01)

Full Changelog: [v0.35.0...v0.35.1](https://github.com/anthropics/anthropic-sdk-php/compare/v0.35.0...v0.35.1)

### Chores

* **api:** remove some nonfunctional types from the SDKs ([3750760](https://github.com/anthropics/anthropic-sdk-php/commit/3750760ea1a628d04db04eb9880a8941c4cdd5a8))

## 0.35.0 (2026-07-01)

Full Changelog: [v0.34.0...v0.35.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.34.0...v0.35.0)

### Features

* **client:** add client-side fallbacks middleware for API providers that do not support server-side fallbacks ([#54](https://github.com/anthropics/anthropic-sdk-php/issues/54)) ([bd05781](https://github.com/anthropics/anthropic-sdk-php/commit/bd05781e193c3a900fe4e6d7e8f4014d5a1b7dd7))
* **client:** optionally pass the attempt's RequestOptions to middleware ([#97](https://github.com/anthropics/anthropic-sdk-php/issues/97)) ([64de73e](https://github.com/anthropics/anthropic-sdk-php/commit/64de73e39808ab6e00116e6a11a6c82253a06250))

## 0.34.0 (2026-06-30)

Full Changelog: [v0.33.0...v0.34.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.33.0...v0.34.0)

### Features

* **api:** add support for Managed Agents event delta streaming, agent overrides, reverse pagination, vault credential injection scoping, and agent and deployment webhook events ([a0e1ba3](https://github.com/anthropics/anthropic-sdk-php/commit/a0e1ba3a8ce813c630877856887eb203008e8be3))
* **api:** api update ([#90](https://github.com/anthropics/anthropic-sdk-php/issues/90)) ([17348ea](https://github.com/anthropics/anthropic-sdk-php/commit/17348ea838874b12e79cd542e103149c045634f4))

## 0.33.0 (2026-06-30)

Full Changelog: [v0.32.0...v0.33.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.32.0...v0.33.0)

### Features

* **api:** add support for claude-sonnet-5 ([e86ff3c](https://github.com/anthropics/anthropic-sdk-php/commit/e86ff3c25c412a81f6bdfedde651c84606a8cc5a))

## 0.32.0 (2026-06-29)

Full Changelog: [v0.31.0...v0.32.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.31.0...v0.32.0)

### Features

* **api:** add support for 20260318 web fetch and support tools ([7656043](https://github.com/anthropics/anthropic-sdk-php/commit/76560439368b96c2e302f711a01d3112f87c49b3))


### Bug Fixes

* **bedrock,vertex:** run provider rewrites as middleware (reapply) ([#77](https://github.com/anthropics/anthropic-sdk-php/issues/77)) ([0961a4d](https://github.com/anthropics/anthropic-sdk-php/commit/0961a4d9f1571ecde9b7799cefcfc406050258a8))


### Chores

* **api:** accept user profile ID's when counting tokens ([12154bd](https://github.com/anthropics/anthropic-sdk-php/commit/12154bd893bbd1790d5e087ddeb2b313f6007cb4))
* **docs:** updates to descriptions and example values ([a0b6eb7](https://github.com/anthropics/anthropic-sdk-php/commit/a0b6eb764bfb2559fd6a7ece33e591ca51b41d49))

## 0.31.0 (2026-06-24)

Full Changelog: [v0.30.0...v0.31.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.30.0...v0.31.0)

### Features

* **client:** add support for system.message streaming events ([a665f06](https://github.com/anthropics/anthropic-sdk-php/commit/a665f0670243dd55ad185d53f01f4b75cecb4a94))
* **helpers:** single source for x-stainless-helper + tag the BetaToolRunner ([#63](https://github.com/anthropics/anthropic-sdk-php/issues/63)) ([ba6ce02](https://github.com/anthropics/anthropic-sdk-php/commit/ba6ce026435ae7b8752fd73cf5c235299142bae5))


### Bug Fixes

* **bedrock,vertex:** run provider rewrites as middleware ([#60](https://github.com/anthropics/anthropic-sdk-php/issues/60)) ([2343067](https://github.com/anthropics/anthropic-sdk-php/commit/234306763d39d11771b3f48180b39b1708b25ff6))


### Chores

* **api:** add support for new refusal category ([ae875c2](https://github.com/anthropics/anthropic-sdk-php/commit/ae875c2283a50a23ed9543b286ac1643bce8df5f))
* **api:** add support for sending User Profile ID in request headers ([521f220](https://github.com/anthropics/anthropic-sdk-php/commit/521f2203adfd1e555f631997df1e1d6909d69488))

## 0.30.0 (2026-06-18)

Full Changelog: [v0.29.2...v0.30.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.29.2...v0.30.0)

### Features

* **api:** add support for new code_execution_20260120 tool ([08d80b7](https://github.com/anthropics/anthropic-sdk-php/commit/08d80b7944f88390941c3b525a9230a8866bc3e5))
* **client:** request middleware ([#35](https://github.com/anthropics/anthropic-sdk-php/issues/35)) ([0a05e5c](https://github.com/anthropics/anthropic-sdk-php/commit/0a05e5ce9af640c46a7fd0b38a1f6dcc72bea228))


### Bug Fixes

* **client:** merge extraBodyParams into the request body ([#53](https://github.com/anthropics/anthropic-sdk-php/issues/53)) ([08035a9](https://github.com/anthropics/anthropic-sdk-php/commit/08035a973e9b2964338891701f04be5933ab191a))
* **client:** preserve client-level options over request-level defaults ([a8c61c4](https://github.com/anthropics/anthropic-sdk-php/commit/a8c61c4cac345c7f59ea6bb480145a48e4049ba1))
* Merge extraBodyParams into the body with the same precedence as extraHeaders (extras win on collision). Lives in Util::mergeBody because the body at that layer is one of four shapes (assoc array, stdClass, list, null) and only map-shaped bodies are merged into; lists and scalars pass through. Five unit tests pin the shape matrix. ([08035a9](https://github.com/anthropics/anthropic-sdk-php/commit/08035a973e9b2964338891701f04be5933ab191a))
* **streaming:** return error statuses instead of throwing ([4e1d617](https://github.com/anthropics/anthropic-sdk-php/commit/4e1d61729f94a152498bb31f2118bf03c10953f3))
* **vertex:** do not send stream: false ([c38340e](https://github.com/anthropics/anthropic-sdk-php/commit/c38340ee19b4cab3d024b0c811ab5905955b8f27))


### Chores

* **client:** add early return when no extraBody is specified ([d79eb94](https://github.com/anthropics/anthropic-sdk-php/commit/d79eb9428c6fc0cb64268155549253e2b7cf18bb))

## 0.29.2 (2026-06-15)

Full Changelog: [v0.29.1...v0.29.2](https://github.com/anthropics/anthropic-sdk-php/compare/v0.29.1...v0.29.2)

### Chores

* **api:** remove retired models from API and SDKs ([01459e8](https://github.com/anthropics/anthropic-sdk-php/commit/01459e8891aa9468539506f3e455c7f6861953b0))

## 0.29.1 (2026-06-09)

Full Changelog: [v0.29.0...v0.29.1](https://github.com/anthropics/anthropic-sdk-php/compare/v0.29.0...v0.29.1)

### Bug Fixes

* **api:** add `frontier_llm` refusal category ([3c8293f](https://github.com/anthropics/anthropic-sdk-php/commit/3c8293fd15dfe3f7dc6c3b4321e54ba28b5ab327))

## 0.29.0 (2026-06-09)

Full Changelog: [v0.28.0...v0.29.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.28.0...v0.29.0)

### Features

* **api:** add support for Managed Agents deployments and environment variable credentials ([211a580](https://github.com/anthropics/anthropic-sdk-php/commit/211a5804ca046ecf0c873749a965c15151908bd1))

## 0.28.0 (2026-06-09)

Full Changelog: [v0.27.0...v0.28.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.27.0...v0.28.0)

### Features

* **api:** add support for claude-mythos-5 and claude-fable-5, with support for server-side fallbacks on refusal ([e10ba6f](https://github.com/anthropics/anthropic-sdk-php/commit/e10ba6fa5b35db6d2fcf16ad929f2d65847a09ae))

## 0.27.0 (2026-06-06)

Full Changelog: [v0.26.0...v0.27.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.26.0...v0.27.0)

### Features

* **api:** small updates to Managed Agents types ([b4e74d4](https://github.com/anthropics/anthropic-sdk-php/commit/b4e74d4e4493b288a1f75e8b67ff07c55b2e3f34))

## 0.26.0 (2026-06-05)

Full Changelog: [v0.25.0...v0.26.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.25.0...v0.26.0)

### Features

* **api:** mark Claude Opus 4.1 as deprecated ([a9ddf0b](https://github.com/anthropics/anthropic-sdk-php/commit/a9ddf0b4337b90739de960555160079b74224cf5))


### Chores

* **internal:** update private repo name ([02d07c0](https://github.com/anthropics/anthropic-sdk-php/commit/02d07c0e6e8b4ced873cb303b711cef1eac023d5))
* pin phpstan to 2.2.1 ([#16](https://github.com/anthropics/anthropic-sdk-php/issues/16)) ([f99bcb4](https://github.com/anthropics/anthropic-sdk-php/commit/f99bcb4cfc39dc9490511357d8ec3eaffc93313d))


### Documentation

* point security reports to Anthropic's HackerOne program ([#7](https://github.com/anthropics/anthropic-sdk-php/issues/7)) ([d219722](https://github.com/anthropics/anthropic-sdk-php/commit/d219722dd63b2c29cf107426eaa3b6ba540547ee))

## 0.25.0 (2026-05-28)

Full Changelog: [v0.24.0...v0.25.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.24.0...v0.25.0)

### Features

* **api:** Add support for claude-opus-4-8, mid-conversation system blocks, and usage.output_tokens_details ([80e5ce5](https://github.com/anthropics/anthropic-sdk-php/commit/80e5ce5239e77824b1922762e6b650c84672a03c))


### Documentation

* replace literal newlines ([6a98894](https://github.com/anthropics/anthropic-sdk-php/commit/6a9889475f07b6f07f942831d8b1757d98e61c33))

## 0.24.0 (2026-05-21)

Full Changelog: [v0.23.0...v0.24.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.23.0...v0.24.0)

### Features

* **api:** Add support for thinking-token-count beta for estimated tokens in thinking block deltas when streaming ([2bbd614](https://github.com/anthropics/anthropic-sdk-php/commit/2bbd6142b1a90081f0a3efa5811bd4ea440ceca4))

## 0.23.0 (2026-05-19)

Full Changelog: [v0.22.0...v0.23.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.22.0...v0.23.0)

### Features

* **client:** Add support for self-hosted sandboxes in CMA with sandbox helpers ([974eb58](https://github.com/anthropics/anthropic-sdk-php/commit/974eb58ae937e14136bea48c5f8d3e0e93b5854c))

## 0.22.0 (2026-05-13)

Full Changelog: [v0.21.0...v0.22.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.21.0...v0.22.0)

### Features

* **api:** Add BetaManagedAgentsSearchResultBlock types ([f29c016](https://github.com/anthropics/anthropic-sdk-php/commit/f29c016d6817abd6d9c43367ad839f4f914e88cb))
* **api:** Add support for cache diagnostics beta ([c47486d](https://github.com/anthropics/anthropic-sdk-php/commit/c47486d4b5cd3040d6cce98903172e4967dd15ea))


### Bug Fixes

* guzzle requires special handling to enable streaming ([248a5aa](https://github.com/anthropics/anthropic-sdk-php/commit/248a5aa64c5510efd96c9e8d009b9f59474f46f0))


### Chores

* **api:** spec updates ([32638ec](https://github.com/anthropics/anthropic-sdk-php/commit/32638ec297fcad831f31b5d2d4f8ae0498bffd1f))
* **ci:** resolve pin conflict from stainless[#18197](https://github.com/anthropics/anthropic-sdk-php/issues/18197) ([#626](https://github.com/anthropics/anthropic-sdk-php/issues/626)) ([550410c](https://github.com/anthropics/anthropic-sdk-php/commit/550410cc7e6e9d102b70d26c535ca0914dcf58d8))

## 0.21.0 (2026-05-11)

Full Changelog: [v0.20.0...v0.21.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.20.0...v0.21.0)

### Features

* **aws:** Add AWS client for Claude Platform on AWS ([c56e7ad](https://github.com/anthropics/anthropic-sdk-php/commit/c56e7ad2ec0e477fbf4d2f185f8720b109605729))


### Bug Fixes

* **client:** address bug with PageCursor not advancing past first page ([#613](https://github.com/anthropics/anthropic-sdk-php/issues/613)) ([6e9982f](https://github.com/anthropics/anthropic-sdk-php/commit/6e9982f3ef0d833be0db9875a95f4e31d7cb2740))
* **client:** prevent betas request param being silently overridden by per-endpoint extraHeaders default ([#615](https://github.com/anthropics/anthropic-sdk-php/issues/615)) ([cacb6da](https://github.com/anthropics/anthropic-sdk-php/commit/cacb6daa78b62d8f04c08efc4ba3e33c6cf4c194))


### Chores

* **ci:** Pin GitHub Actions to commit SHAs ([#37](https://github.com/anthropics/anthropic-sdk-php/issues/37)) ([0d232d4](https://github.com/anthropics/anthropic-sdk-php/commit/0d232d43cd6ee75ca301b8e3c3492e0db0153a6e))

## 0.20.0 (2026-05-06)

Full Changelog: [v0.19.0...v0.20.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.19.0...v0.20.0)

### Features

* **api:** add support for Managed Agents multiagents and outcomes, webhooks, vault validation ([99047bc](https://github.com/anthropics/anthropic-sdk-php/commit/99047bcfcc45231702c5786cdd84f4de0d906028))


### Bug Fixes

* **api:** Adjust webhook configuration ([9b0bd4f](https://github.com/anthropics/anthropic-sdk-php/commit/9b0bd4f37a8e0abfc254f00fe760f818c28efdf8))

## 0.19.0 (2026-05-05)

Full Changelog: [v0.18.0...v0.19.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.18.0...v0.19.0)

### Features

* **client:** allow targeting a workspace for OIDC federation token exchange ([77eaa4d](https://github.com/anthropics/anthropic-sdk-php/commit/77eaa4d8502ff95aa439c319041781b0f082c810))

## 0.18.0 (2026-05-04)

Full Changelog: [v0.17.1...v0.18.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.17.1...v0.18.0)

### Features

* **api:** improve Managed Agents APIs ([56c1d24](https://github.com/anthropics/anthropic-sdk-php/commit/56c1d2448258882e1c1d8bcbb8ce1194b70657a8))
* **client:** add Workload Identity Federation, interactive OAuth, and auth profiles ([2bc875e](https://github.com/anthropics/anthropic-sdk-php/commit/2bc875eb50fee9b418b6992e06763cf2d1422a82))
* **mcp:** add mcp tool helpers ([#561](https://github.com/anthropics/anthropic-sdk-php/issues/561)) ([d5176bf](https://github.com/anthropics/anthropic-sdk-php/commit/d5176bfa9c95804e2adb0e6b599ca38a3785025a))
* support setting headers via env ([51490da](https://github.com/anthropics/anthropic-sdk-php/commit/51490dae8bea7a1efbb48e82cbaf50921363c915))

## 0.17.1 (2026-04-27)

Full Changelog: [v0.17.0...v0.17.1](https://github.com/anthropics/anthropic-sdk-php/compare/v0.17.0...v0.17.1)

### Bug Fixes

* revert enum parsing change that lead to unconditional failure ([94a3363](https://github.com/anthropics/anthropic-sdk-php/commit/94a336314d52909d884a1c4e13e8d5fea9a48b35))

## 0.17.0 (2026-04-23)

Full Changelog: [v0.16.0...v0.17.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.16.0...v0.17.0)

### Features

* **api:** CMA Memory public beta ([b313ec0](https://github.com/anthropics/anthropic-sdk-php/commit/b313ec0576188632a8fa85ce55e6d530b4c9e0c9))


### Bug Fixes

* **api:** fix errors in api spec ([a4e0699](https://github.com/anthropics/anthropic-sdk-php/commit/a4e0699c216f9f5a33d92f7549fed9203d330266))
* **api:** restore missing features ([34e585e](https://github.com/anthropics/anthropic-sdk-php/commit/34e585e58abbbf9da88e05230fae823324cdc970))
* **client:** resolve serialization issue with unions and enums ([c9795cd](https://github.com/anthropics/anthropic-sdk-php/commit/c9795cd8ef35c96ff6f9f8007852e2883ca704f5))
* populate enum-typed properties with enum instances ([6c0d3de](https://github.com/anthropics/anthropic-sdk-php/commit/6c0d3de80d9d384ccb18f398b28312bca0e99e59))


### Chores

* **tests:** bump steady to v0.22.1 ([fe9a8f0](https://github.com/anthropics/anthropic-sdk-php/commit/fe9a8f0a7ff1e9e62e7d75584241397d21414cee))

## 0.16.0 (2026-04-16)

Full Changelog: [v0.15.0...v0.16.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.15.0...v0.16.0)

### Features

* **api:** add claude-opus-4-7, token budgets and user_profiles ([88f42ab](https://github.com/anthropics/anthropic-sdk-php/commit/88f42abee3fac47ca986864b36bb0816b199deb7))

## 0.15.0 (2026-04-14)

Full Changelog: [v0.14.0...v0.15.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.14.0...v0.15.0)

### Features

* **bedrock:** use auth header for mantle client ([#511](https://github.com/anthropics/anthropic-sdk-php/issues/511)) ([b2bb5f9](https://github.com/anthropics/anthropic-sdk-php/commit/b2bb5f960f1f46755736accc4044fa3011959f9d))
* **client:** enable upload methods ([5a65b0f](https://github.com/anthropics/anthropic-sdk-php/commit/5a65b0f2dc96f83881f24b07913d011a0abd8f40))


### Bug Fixes

* **lint:** remove dead code flagged by PHPStan 2.1.47 ([#534](https://github.com/anthropics/anthropic-sdk-php/issues/534)) ([0393a38](https://github.com/anthropics/anthropic-sdk-php/commit/0393a38158533349c81e87549c15d208eb80e548))
* **streaming:** add missing events ([e06bf16](https://github.com/anthropics/anthropic-sdk-php/commit/e06bf166e8216036abbec19da54e8af865bff136))


### Chores

* **ci:** remove release-doctor workflow ([c444c6f](https://github.com/anthropics/anthropic-sdk-php/commit/c444c6fae28e408b4a230c4753414d5a121c7882))
* deprecate sonnet 4 and opus 4 models ([#540](https://github.com/anthropics/anthropic-sdk-php/issues/540)) ([30b12fa](https://github.com/anthropics/anthropic-sdk-php/commit/30b12fad64a49ca5212e32606341039a7b47970e))
* **docs:** add 2 more examples on how to use the agents API ([#537](https://github.com/anthropics/anthropic-sdk-php/issues/537)) ([b234398](https://github.com/anthropics/anthropic-sdk-php/commit/b234398c5db973159f0ef0e19f0d2fb3a3c0852a))

## 0.14.0 (2026-04-10)

Full Changelog: [v0.13.0...v0.14.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.13.0...v0.14.0)

### Features

* vertex eu region ([#517](https://github.com/anthropics/anthropic-sdk-php/issues/517)) ([49c60d2](https://github.com/anthropics/anthropic-sdk-php/commit/49c60d20c9b6d8f3284399134f5f4427fd1bc3cc))


### Bug Fixes

* **client:** properly generate file params ([3866f0e](https://github.com/anthropics/anthropic-sdk-php/commit/3866f0e7d95d3458997723a8d7148cb82f03be23))


### Documentation

* improve examples ([dc4c545](https://github.com/anthropics/anthropic-sdk-php/commit/dc4c5452adf4bf37e71a091c2aa3666e324d3908))
* update examples ([8f1c3b3](https://github.com/anthropics/anthropic-sdk-php/commit/8f1c3b35d0195db6202871b927dcbe7404d6db29))

## 0.13.0 (2026-04-09)

Full Changelog: [v0.12.0...v0.13.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.12.0...v0.13.0)

### Features

* **api:** Add beta advisor tool ([041ee5f](https://github.com/anthropics/anthropic-sdk-php/commit/041ee5fba5389b78862345a6682ec9b1564fa4c3))

## 0.12.0 (2026-04-08)

Full Changelog: [v0.11.0...v0.12.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.11.0...v0.12.0)

### Features

* **api:** add support for Claude Managed Agents ([e3d510b](https://github.com/anthropics/anthropic-sdk-php/commit/e3d510b4355fc584f7c95c820a95e2a614d6d8ba))

## 0.11.0 (2026-04-07)

Full Changelog: [v0.10.0...v0.11.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.10.0...v0.11.0)

### Features

* **bedrock:** Create Bedrock Mantle client ([#472](https://github.com/anthropics/anthropic-sdk-php/issues/472)) ([89578cb](https://github.com/anthropics/anthropic-sdk-php/commit/89578cb3b8570645b718a6874fdb7e2d0c954adb))

## 0.10.0 (2026-04-07)

Full Changelog: [v0.9.0...v0.10.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.9.0...v0.10.0)

### Features

* **api:** Add support for claude-mythos-preview ([140ef63](https://github.com/anthropics/anthropic-sdk-php/commit/140ef63deb83be8c2b787e4b0c5a3275e61a1ed1))
* **vertex:** add support for US multi-region endpoint ([347a703](https://github.com/anthropics/anthropic-sdk-php/commit/347a703e1ee910668eac06b3f6fdffa44c20ecbc))


### Chores

* **client:** internal updates ([553ec56](https://github.com/anthropics/anthropic-sdk-php/commit/553ec5616546f1d1fdeeb5b23d10c8c58855998c))

## 0.9.0 (2026-04-01)

Full Changelog: [v0.8.0...v0.9.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.8.0...v0.9.0)

### Features

* add error type field to APIStatusException ([#457](https://github.com/anthropics/anthropic-sdk-php/issues/457)) ([c889d8e](https://github.com/anthropics/anthropic-sdk-php/commit/c889d8eecf7d30f2aac3bc5f28b8dac432c0df80))
* **api:** add structured stop_details to message responses ([80151ce](https://github.com/anthropics/anthropic-sdk-php/commit/80151cebf02ab18420bc4f4044846df1db8087cf))
* prepare aws package ([#471](https://github.com/anthropics/anthropic-sdk-php/issues/471)) ([de64488](https://github.com/anthropics/anthropic-sdk-php/commit/de64488644f3b45d27bb2939e97ac022365f149e))
* support API key auth in Bedrock ([#490](https://github.com/anthropics/anthropic-sdk-php/issues/490)) ([ee2528d](https://github.com/anthropics/anthropic-sdk-php/commit/ee2528d911f74d4f36350721b942631c0c5677cf))


### Bug Fixes

* exclude `parsed` from TextBlock serialization ([#466](https://github.com/anthropics/anthropic-sdk-php/issues/466)) ([f3053e5](https://github.com/anthropics/anthropic-sdk-php/commit/f3053e5f176af541cc99cdd350b7ae0b290285d4)), closes [#465](https://github.com/anthropics/anthropic-sdk-php/issues/465)


### Chores

* **internal:** update multipart form array serialization ([12b1028](https://github.com/anthropics/anthropic-sdk-php/commit/12b1028e833591f5f6200ef270b10b3ccd516520))
* **tests:** bump steady to v0.19.4 ([f257675](https://github.com/anthropics/anthropic-sdk-php/commit/f2576756157ef641eabde7ca7fd29e2bbb07c6d0))
* **tests:** bump steady to v0.19.5 ([dea677e](https://github.com/anthropics/anthropic-sdk-php/commit/dea677e19633ec6dd470cd549ea08aca0c550043))
* **tests:** bump steady to v0.19.6 ([c708ab5](https://github.com/anthropics/anthropic-sdk-php/commit/c708ab5a667e0ada2b013a7d942c87aed7cf67c0))
* **tests:** bump steady to v0.19.7 ([88d31c8](https://github.com/anthropics/anthropic-sdk-php/commit/88d31c86b45d33b6144bb8c4097270a0eff24ffb))
* **tests:** bump steady to v0.20.1 ([e9324d3](https://github.com/anthropics/anthropic-sdk-php/commit/e9324d32a329a8c629ebe7e584c66d5dcdf51c5b))
* **tests:** bump steady to v0.20.2 ([0f9de36](https://github.com/anthropics/anthropic-sdk-php/commit/0f9de36e291580262f1ddc30d36209c4f4f2bda1))

## 0.8.0 (2026-03-18)

Full Changelog: [v0.7.0...v0.8.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.7.0...v0.8.0)

### Features

* **api:** manual updates ([7267a19](https://github.com/anthropics/anthropic-sdk-php/commit/7267a19b9c6e3fd15e997d924aa0d68ebdd90ff9))


### Bug Fixes

* resolve lint error ([#452](https://github.com/anthropics/anthropic-sdk-php/issues/452)) ([9564625](https://github.com/anthropics/anthropic-sdk-php/commit/9564625f711fb6c4d8de7ca4f9dc309aabbdf174))


### Chores

* **internal:** remove Bedrock/Vertex/Foundry clients, structured output, update model capabilities ([2fae870](https://github.com/anthropics/anthropic-sdk-php/commit/2fae870526bc7b93babbd9ad215b4e85ebc7ef66))
* **internal:** tweak CI branches ([05c72ad](https://github.com/anthropics/anthropic-sdk-php/commit/05c72adfc1163efd0a50f5cc0075110e13b289f8))

## 0.7.0 (2026-03-16)

Full Changelog: [v0.6.0...v0.7.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.6.0...v0.7.0)

### Features

* add beta tool runner ([#324](https://github.com/anthropics/anthropic-sdk-php/issues/324)) ([57a3df6](https://github.com/anthropics/anthropic-sdk-php/commit/57a3df6fdbb45df3c9097bc1ec544500f76f3a7d))
* add structured output helpers for messages ([#302](https://github.com/anthropics/anthropic-sdk-php/issues/302)) ([a8685fc](https://github.com/anthropics/anthropic-sdk-php/commit/a8685fc777bc54fe64eaec404611f044a94294fd))
* **api:** chore(config): clean up model enum list ([#31](https://github.com/anthropics/anthropic-sdk-php/issues/31)) ([c9b776b](https://github.com/anthropics/anthropic-sdk-php/commit/c9b776bdc1b7e9787a7fde9b9eaee0e7a0badfca))
* **api:** GA thinking-display-setting ([00fc5a5](https://github.com/anthropics/anthropic-sdk-php/commit/00fc5a5afa5ce01c938cc17865880b8568976853))
* **tests:** update mock server ([97fdd5b](https://github.com/anthropics/anthropic-sdk-php/commit/97fdd5b955d7feb9e65f298c2d5cc4f86e420681))


### Bug Fixes

* **client:** update thinking config from enabled to adaptive and remove budgetTokens ([#401](https://github.com/anthropics/anthropic-sdk-php/issues/401)) ([12e8e41](https://github.com/anthropics/anthropic-sdk-php/commit/12e8e41ff808c1ed578aa7a40cd31cca62f0b363))
* remove broken methods ([13776b6](https://github.com/anthropics/anthropic-sdk-php/commit/13776b6821de60a00b462f69e649642b0dfbf353))
* restore x-release-please-start-version markers in README ([#320](https://github.com/anthropics/anthropic-sdk-php/issues/320)) ([1052efc](https://github.com/anthropics/anthropic-sdk-php/commit/1052efc876d121da52d95cdd8d51bf719008d466))


### Chores

* **internal:** codegen related update ([9e16dc8](https://github.com/anthropics/anthropic-sdk-php/commit/9e16dc80e308aa06a91135d5ee8f4dac05daf70b))
* **internal:** codegen related update ([03f7bb7](https://github.com/anthropics/anthropic-sdk-php/commit/03f7bb7f621aa6394671162f76dabf4789422cf3))
* **internal:** upgrade phpunit ([ac75d97](https://github.com/anthropics/anthropic-sdk-php/commit/ac75d971ac75d8be5c8cc3dcf867284ae7489b3d))
* **tests:** unskip tests that are now supported in steady ([319997a](https://github.com/anthropics/anthropic-sdk-php/commit/319997aaee4e072623e2b00e00fc0bece7d03a5b))

## 0.6.0 (2026-02-19)

Full Changelog: [v0.5.0...v0.6.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.5.0...v0.6.0)

### Features

* add Bedrock client ([#273](https://github.com/anthropics/anthropic-sdk-php/issues/273)) ([cf8b733](https://github.com/anthropics/anthropic-sdk-php/commit/cf8b733cc3638572183631566e1b8e167fb6de5b))
* add Foundry client ([#307](https://github.com/anthropics/anthropic-sdk-php/issues/307)) ([8ccd093](https://github.com/anthropics/anthropic-sdk-php/commit/8ccd093ce391621b94ff8686455eae77d77152b8))
* add Vertex client ([#264](https://github.com/anthropics/anthropic-sdk-php/issues/264)) ([d7d87ad](https://github.com/anthropics/anthropic-sdk-php/commit/d7d87adb9a8b62744ac9bbc0eda20d5177fee4c6))
* **api:** add support for speed mode ([955855c](https://github.com/anthropics/anthropic-sdk-php/commit/955855cae8dedd6f9b29e8c55e1f365f25c8f7b2))
* **api:** Add top-level cache control (automatic caching) ([b98536b](https://github.com/anthropics/anthropic-sdk-php/commit/b98536b1953036009de812052d653ee4e8637d1b))
* **api:** fix shared UserLocation and error code types ([db15b55](https://github.com/anthropics/anthropic-sdk-php/commit/db15b55eea9760033e8348f9a23db4002270424e))
* **api:** manual updates ([3ce2054](https://github.com/anthropics/anthropic-sdk-php/commit/3ce2054d3a41b5cebe5b55821d2d39294c74fba1))
* **api:** Release Claude Opus 4.6, adaptive thinking, and other features ([439fcf8](https://github.com/anthropics/anthropic-sdk-php/commit/439fcf800d8c958b6b2b293147a5d4f8d7d3e6bd))
* **api:** Releasing claude-sonnet-4-6 ([78fda97](https://github.com/anthropics/anthropic-sdk-php/commit/78fda973fd0026fa6a27ef8a88e720ce8ebc3273))
* use `$_ENV` aware getenv helper ([c40668b](https://github.com/anthropics/anthropic-sdk-php/commit/c40668b3ba2d4bbfd1038ff2d47d56af6fdc5c73))
* warn when thinking is enabled for certain models ([#305](https://github.com/anthropics/anthropic-sdk-php/issues/305)) ([e306169](https://github.com/anthropics/anthropic-sdk-php/commit/e30616997dd28f9b5e567fa5ef7bf786ee777e89))


### Bug Fixes

* add backward-compat class_alias stubs for renamed UserLocation and ErrorCode types ([#319](https://github.com/anthropics/anthropic-sdk-php/issues/319)) ([e470d01](https://github.com/anthropics/anthropic-sdk-php/commit/e470d0131fac244fd3257a5d2c3afd98c0fb6d83))
* add type declaration to avoid lint error ([#311](https://github.com/anthropics/anthropic-sdk-php/issues/311)) ([2b8765d](https://github.com/anthropics/anthropic-sdk-php/commit/2b8765d2ae250c32b735034ffb26b4166f78489e))
* **api:** fix spec errors ([f57e850](https://github.com/anthropics/anthropic-sdk-php/commit/f57e850db50d15b9544a60358b6790cb36651741))
* **ci:** use correct GitHub URL for Packagist notification ([#14](https://github.com/anthropics/anthropic-sdk-php/issues/14)) ([ef0a1dc](https://github.com/anthropics/anthropic-sdk-php/commit/ef0a1dc0d2ca1c2b11dfb8c8ac35a27cf23f0c86))


### Chores

* add exception message to `Util::getenv()` and add tests ([#309](https://github.com/anthropics/anthropic-sdk-php/issues/309)) ([451a3d4](https://github.com/anthropics/anthropic-sdk-php/commit/451a3d41c2cded89249b3c1a3f6de28c928fa3f6))
* add usage sections for the Bedrock and Vertex clients ([#303](https://github.com/anthropics/anthropic-sdk-php/issues/303)) ([a8b5419](https://github.com/anthropics/anthropic-sdk-php/commit/a8b5419793964f368e6cfe0aa64620fe4a233ed1))
* **ci:** Remove claude code review ([#17](https://github.com/anthropics/anthropic-sdk-php/issues/17)) ([df06300](https://github.com/anthropics/anthropic-sdk-php/commit/df06300936f51577d7485e826d789749518d0d7e))
* **client:** update model name ([dac28a0](https://github.com/anthropics/anthropic-sdk-php/commit/dac28a05ab8e2bd8ee6feb7f78cec4ae75fa31ed))
* integrate latest API updates into Bedrock and Vertex clients ([#308](https://github.com/anthropics/anthropic-sdk-php/issues/308)) ([0f33eec](https://github.com/anthropics/anthropic-sdk-php/commit/0f33eec06c53c3d0d643743c2a1ef0540839cdaa))
* **internal:** php cs fixer should not be memory limited ([cbc55ad](https://github.com/anthropics/anthropic-sdk-php/commit/cbc55ad459328e9e57c8ebd1076b66a0588db940))
* update mock server docs ([13e0170](https://github.com/anthropics/anthropic-sdk-php/commit/13e0170da1c95a5db53265d936f727392e2cf42e))


### Documentation

* streamline and standardize docs ([#313](https://github.com/anthropics/anthropic-sdk-php/issues/313)) ([efc3d16](https://github.com/anthropics/anthropic-sdk-php/commit/efc3d167562ae610406cbd4e2b6053f1a703c287))

## 0.5.0 (2026-01-30)

Full Changelog: [v0.4.0...v0.5.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.4.0...v0.5.0)

### ⚠ BREAKING CHANGES

* replace special flag type `omittable` with just `null`
* use camel casing for all class properties

### Features

* add `BaseResponse` class for accessing raw responses ([b803fb8](https://github.com/anthropics/anthropic-sdk-php/commit/b803fb85712bc5cd686bc7939b8b1447060be5cb))
* add idempotency header support ([113b79f](https://github.com/anthropics/anthropic-sdk-php/commit/113b79f994c437eb5b739a7e4cde1d6cb8b54e4d))
* add setters to constant parameters ([a476273](https://github.com/anthropics/anthropic-sdk-php/commit/a47627345b4905d846ff8227f9646e7f7a61a5ce))
* allow both model class instances and arrays in setters ([71aa7fc](https://github.com/anthropics/anthropic-sdk-php/commit/71aa7fcf3e610a024e407edc0fc77cf7a9050f9c))
* **api:** add support for Structured Outputs in the Messages API ([9fd43ce](https://github.com/anthropics/anthropic-sdk-php/commit/9fd43ceedda53a49059465e2077dd73029a9cafb))
* **api:** migrate sending message format in output_config rather than output_format ([d334157](https://github.com/anthropics/anthropic-sdk-php/commit/d334157f4949bd963401e274ae90a029477764de))
* better support for pagination mechanisms ([829ee6e](https://github.com/anthropics/anthropic-sdk-php/commit/829ee6eddf267729c0f78b9422433d8ecec2ed90))
* improved phpstan type annotations ([cc981bb](https://github.com/anthropics/anthropic-sdk-php/commit/cc981bb99a71dfad9ba113504c144102962348fc))
* replace special flag type `omittable` with just `null` ([e1137de](https://github.com/anthropics/anthropic-sdk-php/commit/e1137deadaa6405f4a993f1cfc977bc2e5d132f6))
* simplify and make the phpstan types more consistent ([9f536fe](https://github.com/anthropics/anthropic-sdk-php/commit/9f536fea8c01e5b9e225da7ef56b87afe1cc3c58))
* split out services into normal & raw types ([5ba5dbf](https://github.com/anthropics/anthropic-sdk-php/commit/5ba5dbfce8f949df59af69e2994bac0d248dc65a))
* support unwrapping envelopes ([0ed53db](https://github.com/anthropics/anthropic-sdk-php/commit/0ed53dbcfb82ff00bcdfb37055d00604cd361e08))
* use camel casing for all class properties ([90f0805](https://github.com/anthropics/anthropic-sdk-php/commit/90f0805040304e1469f056d640b7dc19e5172f1c))


### Bug Fixes

* a number of serialization errors ([e318451](https://github.com/anthropics/anthropic-sdk-php/commit/e318451cbed8f7811f0aec828458df76894ccd9f))
* correctly serialize dates ([af8260d](https://github.com/anthropics/anthropic-sdk-php/commit/af8260d59b4bdf51740ae27621ccd344842d7b31))
* support arrays in query param construction ([779413f](https://github.com/anthropics/anthropic-sdk-php/commit/779413fa74d5c3db05f60b19e98c479a257ea6ff))
* typos in README.md ([cb61dee](https://github.com/anthropics/anthropic-sdk-php/commit/cb61dee0b67dfe15b1078de8472f026a53e7e3a4))


### Chores

* add git attributes and composer lock file ([006c7c2](https://github.com/anthropics/anthropic-sdk-php/commit/006c7c20159234b46bfb12b72f24c24112fab190))
* be more targeted in suppressing superfluous linter warnings ([4b8cbf5](https://github.com/anthropics/anthropic-sdk-php/commit/4b8cbf5aa58f27965e28830089d144f724774866))
* **ci:** Add Claude Code GitHub Workflow ([#240](https://github.com/anthropics/anthropic-sdk-php/issues/240)) ([4fd215b](https://github.com/anthropics/anthropic-sdk-php/commit/4fd215b4bab6b4fa7a61ecb2283cc257b74ecbd0))
* ensure constant values are marked as optional in array types ([66cf88c](https://github.com/anthropics/anthropic-sdk-php/commit/66cf88c69f3df0ff214d58e34aa3ab122140eacd))
* formatting ([5878c16](https://github.com/anthropics/anthropic-sdk-php/commit/5878c16d13731b6680e415b897928ecfaf3d6059))
* **internal:** add a basic client test ([8835b21](https://github.com/anthropics/anthropic-sdk-php/commit/8835b216e57256f0fb0fbeb51a76c5d63f224ec1))
* **internal:** codegen related update ([1c218af](https://github.com/anthropics/anthropic-sdk-php/commit/1c218af6e5c5b3d697ee4643b98eb9fbb78c73b4))
* **internal:** codegen related update ([7240372](https://github.com/anthropics/anthropic-sdk-php/commit/72403726a0d825d21b34324dfc0fdb2f52a1a3af))
* **internal:** codegen related update ([9557a1c](https://github.com/anthropics/anthropic-sdk-php/commit/9557a1cbeb0dc5cceca7d174facf463910fe6fe5))
* **internal:** codegen related update ([a8a13ec](https://github.com/anthropics/anthropic-sdk-php/commit/a8a13ec47930ca97bde4cb4d9b788817a0e940fe))
* **internal:** codegen related update ([e2bebf6](https://github.com/anthropics/anthropic-sdk-php/commit/e2bebf6b08b81068d0f06f0885e0153d6f8af315))
* **internal:** codegen related update ([213c670](https://github.com/anthropics/anthropic-sdk-php/commit/213c67045189aebd26cbfa0382d9503127a591a4))
* **internal:** codegen related update ([2d460ff](https://github.com/anthropics/anthropic-sdk-php/commit/2d460ff29ac56f8c748010843a0196052abd8ff3))
* **internal:** codegen related update ([6087933](https://github.com/anthropics/anthropic-sdk-php/commit/6087933682bcfe4c24fbe85add2d10e59ae8b80b))
* **internal:** codegen related update ([3e5e21a](https://github.com/anthropics/anthropic-sdk-php/commit/3e5e21a70e6764467231a62959f60372f4c1003c))
* **internal:** codegen related update ([ee26b2b](https://github.com/anthropics/anthropic-sdk-php/commit/ee26b2b888cac9f95c4e3b3415794d79fc87284c))
* **internal:** codegen related update ([b3411dd](https://github.com/anthropics/anthropic-sdk-php/commit/b3411dd6fe189fbd2ed577e16e9985cd40cfe1b3))
* **internal:** codegen related update ([e98bd62](https://github.com/anthropics/anthropic-sdk-php/commit/e98bd62e30a1eb28db272cc2b64b72bca71c9ab5))
* **internal:** codegen related update ([94d88c4](https://github.com/anthropics/anthropic-sdk-php/commit/94d88c4acc707723aa49130832709b3d9f3fb830))
* **internal:** ignore stainless-internal artifacts ([b144935](https://github.com/anthropics/anthropic-sdk-php/commit/b1449355e374463a1e38c0991919782f1697baff))
* **internal:** improve pagination tests ([94f8bc8](https://github.com/anthropics/anthropic-sdk-php/commit/94f8bc822a87bd2c15c12951ac23227b958ae85b))
* **internal:** minor test script reformatting ([e27d068](https://github.com/anthropics/anthropic-sdk-php/commit/e27d068e737cbb6c9c6616ccf57cf187fbd1c093))
* **internal:** refactor auth by moving concern from base client into client ([af7b192](https://github.com/anthropics/anthropic-sdk-php/commit/af7b192201e0ba1bddffeedbbaa84f0abb5a2c75))
* **internal:** update `actions/checkout` version ([212b762](https://github.com/anthropics/anthropic-sdk-php/commit/212b762f9446793d19766b2519306d77e7cc5aee))
* **internal:** update phpstan comments ([f0f7ddf](https://github.com/anthropics/anthropic-sdk-php/commit/f0f7ddf3d16c70c844e3c85e548c1c110d0a4dd8))
* **readme:** remove beta warning now that we're in ga ([ca60a4b](https://github.com/anthropics/anthropic-sdk-php/commit/ca60a4bb724751871e2377ba84022670825d81d1))
* support jsonl streaming ([b350cbc](https://github.com/anthropics/anthropic-sdk-php/commit/b350cbc9373cdcb0b55449e73f394cc7c02236ae))
* switch from `#[Api(optional: true|false)]` to `#[Required]|#[Optional]` for annotations ([f938919](https://github.com/anthropics/anthropic-sdk-php/commit/f938919409d5ade7d8afaf5b4dcb6de50b4a14ea))
* update examples ([eef6daf](https://github.com/anthropics/anthropic-sdk-php/commit/eef6dafb14bffb4ee842764465c049b75fbb9111))
* use `$self = clone $this;` instead of `$obj = clone $this;` ([1607f76](https://github.com/anthropics/anthropic-sdk-php/commit/1607f76433d8b02c03a61f84c422fe06f652661b))
* use non-trivial test assertions ([c223976](https://github.com/anthropics/anthropic-sdk-php/commit/c223976e6b6540e7389799ac1428a321119365b2))
* use single quote strings ([441785c](https://github.com/anthropics/anthropic-sdk-php/commit/441785c73c427e4b7f60fdf6f5e0562b7ede94e6))

## 0.4.0 (2025-11-24)

Full Changelog: [v0.3.0...v0.4.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.3.0...v0.4.0)

### ⚠ BREAKING CHANGES

* **client:** redesign methods
* remove confusing `toArray()` alias to `__serialize()` in favour of `toProperties()`
* expose services and service contracts

### Features

* **api:** add ability to clear thinking in context management ([99617c4](https://github.com/anthropics/anthropic-sdk-php/commit/99617c4c52c62703ac598f06bc99670bba4bacba))
* **api:** add support for structured outputs beta ([b3c80f7](https://github.com/anthropics/anthropic-sdk-php/commit/b3c80f7b6410d405d06f25e68ee1d27995710dbd))
* **api:** adding support for agent skills ([471dd50](https://github.com/anthropics/anthropic-sdk-php/commit/471dd50f082550a68edc7e31cd7f62a98c52d3b1))
* **api:** adds support for Claude Opus 4.5, Effort, Advance Tool Use Features, Autocompaction, and Computer Use v5 ([1e73c3d](https://github.com/anthropics/anthropic-sdk-php/commit/1e73c3d868c19888de93ca1139896ef8b4b0b04a))
* **api:** adds support for Claude Sonnet 4.5 and context management features ([74e2d73](https://github.com/anthropics/anthropic-sdk-php/commit/74e2d7395ea923d6f2fd1d2a5aa2df33d3e759e1))
* **api:** adds support for Documents in tool results ([f98a2d4](https://github.com/anthropics/anthropic-sdk-php/commit/f98a2d467e0b9731239def1e4ee6a1fc2ee68a25))
* **api:** adds support for web_fetch_20250910 tool ([6159be3](https://github.com/anthropics/anthropic-sdk-php/commit/6159be37f60b2ded50b5bd3331e86f9a4f6f6a05))
* **api:** manual updates ([bc265c5](https://github.com/anthropics/anthropic-sdk-php/commit/bc265c56ed6ab87873182fa2dbdb23f3b9bcc8f6))
* **client:** add raw methods ([64d6f33](https://github.com/anthropics/anthropic-sdk-php/commit/64d6f33f9dba59efc0f041b5cd69009cb38d399e))
* **client:** redesign methods ([b00b0d8](https://github.com/anthropics/anthropic-sdk-php/commit/b00b0d868f7b7044847a40365942dfcc1fc92d67))
* **client:** support raw responses ([1c8b9ee](https://github.com/anthropics/anthropic-sdk-php/commit/1c8b9ee7f784e8edcadc531435fdaa2af8b282ff))
* **client:** use real enums ([29faa11](https://github.com/anthropics/anthropic-sdk-php/commit/29faa112446da81d2be2a74c90f67f205776f660))
* expose services and service contracts ([2c99ab5](https://github.com/anthropics/anthropic-sdk-php/commit/2c99ab5099f4304ac86234d8b04f97a6811f3db0))
* remove confusing `toArray()` alias to `__serialize()` in favour of `toProperties()` ([d12c426](https://github.com/anthropics/anthropic-sdk-php/commit/d12c4262fa70495aec54794a9829e64e9a0f1caa))


### Bug Fixes

* **ci:** release doctor workflow ([215237e](https://github.com/anthropics/anthropic-sdk-php/commit/215237ee65aece5a973a6628a5b255b6b1b6ea5c))
* decorate with enum label for all enum classes ([e3c3890](https://github.com/anthropics/anthropic-sdk-php/commit/e3c38903f79d55f4a0e7b24d73f2146537de2041))
* ensure auth methods return non-nullable arrays ([bb1ed82](https://github.com/anthropics/anthropic-sdk-php/commit/bb1ed82b20907670a36ea82b7d7e4498cf14139b))
* inverted retry condition ([300bcf1](https://github.com/anthropics/anthropic-sdk-php/commit/300bcf1c145a20bb15da73db2bfbff2c97934100))
* phpStan linter errors ([02fce13](https://github.com/anthropics/anthropic-sdk-php/commit/02fce13df16e127231f1c91ab29723f1ec824517))


### Chores

* add license ([00cc634](https://github.com/anthropics/anthropic-sdk-php/commit/00cc6346fcd07669eb5ab97b2db1215249a6eab7))
* **api:** mark older sonnet models as deprecated ([76fdfa8](https://github.com/anthropics/anthropic-sdk-php/commit/76fdfa889279e71dace54d600c1770314ec0af88))
* cleanup streaming ([26d89eb](https://github.com/anthropics/anthropic-sdk-php/commit/26d89eb8519d1ca47118be6f596af79525e3ff3f))
* **client:** add context-management-2025-06-27 beta header ([276d908](https://github.com/anthropics/anthropic-sdk-php/commit/276d908ec5dc085fb1611d921a86c2a1ab159c0a))
* **client:** add model-context-window-exceeded-2025-08-26 beta header ([1ab3668](https://github.com/anthropics/anthropic-sdk-php/commit/1ab3668038747950717b0373fdcd3d8b521939b8))
* **client:** send metadata headers ([cd895d4](https://github.com/anthropics/anthropic-sdk-php/commit/cd895d4869c977f76d804a401cc003ac689845b8))
* **docs:** update readme formatting ([041acbb](https://github.com/anthropics/anthropic-sdk-php/commit/041acbbf12aa1f999045419a0fc4c301862cfda5))
* document parameter object usage ([47d4c9b](https://github.com/anthropics/anthropic-sdk-php/commit/47d4c9bf07ecb32b92264ec686e9ada5dc0ce3bc))
* fix lints in UnionOf ([b57e2c7](https://github.com/anthropics/anthropic-sdk-php/commit/b57e2c797bc5a30790e2e9b2803e3d7bd25366d5))
* **internal:** codegen related update ([46489b1](https://github.com/anthropics/anthropic-sdk-php/commit/46489b136ea2cddb08b5a9f8e27557ad448dd4a7))
* **internal:** codegen related update ([2859486](https://github.com/anthropics/anthropic-sdk-php/commit/28594861df1bc61ca953b39aade6f139840706d8))
* **internal:** fix tests ([bc714d4](https://github.com/anthropics/anthropic-sdk-php/commit/bc714d43bdfdf7e3959857a8ba56a87d6ea99403))
* **internal:** refactor base client internals ([08252f7](https://github.com/anthropics/anthropic-sdk-php/commit/08252f7b4e38c04a9bd6f420ef57a4e539aa3126))
* make more targeted phpstan ignores ([00a1680](https://github.com/anthropics/anthropic-sdk-php/commit/00a168044830aa2295921c15eff3d26b5c621b29))
* refactor methods ([1d7489e](https://github.com/anthropics/anthropic-sdk-php/commit/1d7489e2b7706af750281fc56a8b3b15a7bf2243))
* update examples ([#191](https://github.com/anthropics/anthropic-sdk-php/issues/191)) ([5c3819a](https://github.com/anthropics/anthropic-sdk-php/commit/5c3819aaec40e77034cf9bf7148de97a92dab13c))
* use pascal case for phpstan typedefs ([034b6b0](https://github.com/anthropics/anthropic-sdk-php/commit/034b6b0844575a9757bbb072fe21b93f88103ed2))

## 0.3.0 (2025-09-02)

Full Changelog: [v0.2.0...v0.3.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.2.0...v0.3.0)

### ⚠ BREAKING CHANGES

* use builders for RequestOptions

### Features

* **client:** adds support for code-execution-2025-08-26 tool ([99a5428](https://github.com/anthropics/anthropic-sdk-php/commit/99a5428144c21c4d50142d780e820c7a5c93c751))
* expose streams and pages in the public namespace ([41382e4](https://github.com/anthropics/anthropic-sdk-php/commit/41382e45da26b356d66068c80948a56ab93b0958))
* use builders for RequestOptions ([fd0c23a](https://github.com/anthropics/anthropic-sdk-php/commit/fd0c23a3633157f24e0929f74875b3c34031a80f))


### Bug Fixes

* remove inaccurate `license` field in composer.json ([5296a0d](https://github.com/anthropics/anthropic-sdk-php/commit/5296a0d0e5e1079acebd76af86c98337483483c5))


### Chores

* add additional php doc tags ([55cc35f](https://github.com/anthropics/anthropic-sdk-php/commit/55cc35f45d7dc9c4ab240b2c7ed7a30fca9380c4))
* refactor request options ([1029de6](https://github.com/anthropics/anthropic-sdk-php/commit/1029de68d7ddd43266408acb05da29ffc4b6e93f))
* **refactor:** simplify base page interface ([4a69adf](https://github.com/anthropics/anthropic-sdk-php/commit/4a69adf0342a0be525c6ae4529e167238014d1b1))
* remove `php-http/multipart-stream-builder` as a required dependency ([bd27c94](https://github.com/anthropics/anthropic-sdk-php/commit/bd27c9418359f4d3aa1debe3aea4484299fe3566))
* simplify model initialization ([bc0e44f](https://github.com/anthropics/anthropic-sdk-php/commit/bc0e44f3c7bf20f668a8f840852556e24ad0cf45))

## 0.2.0 (2025-08-27)

Full Changelog: [v0.1.0...v0.2.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.1.0...v0.2.0)

### ⚠ BREAKING CHANGES

* rename errors to exceptions

### Features

* rename errors to exceptions ([8bbf53a](https://github.com/anthropics/anthropic-sdk-php/commit/8bbf53adda49b489345be998ddd3838d1cf0f240))


### Bug Fixes

* add create release workflow ([6455528](https://github.com/anthropics/anthropic-sdk-php/commit/64555283f3bb0b1f4dacb62a7bf43384f92f20c8))


### Chores

* improve streaming example ([#110](https://github.com/anthropics/anthropic-sdk-php/issues/110)) ([c9025f7](https://github.com/anthropics/anthropic-sdk-php/commit/c9025f77730ca6918975e81d402c6ead6f8d881f))

## 0.1.0 (2025-08-26)

Full Changelog: [v0.0.1...v0.1.0](https://github.com/anthropics/anthropic-sdk-php/compare/v0.0.1...v0.1.0)

### Features

* ensure `->toArray()` benefits from structural typing ([0758217](https://github.com/anthropics/anthropic-sdk-php/commit/0758217c9f3c5222a572a421dd53cd6c250599a8))


### Chores

* **doc:** small improvement to pagination example ([57afba6](https://github.com/anthropics/anthropic-sdk-php/commit/57afba64fd45f08491f8d42a034837715704333c))
* sync repo ([d6cb59a](https://github.com/anthropics/anthropic-sdk-php/commit/d6cb59a225f573ddd6275381cd4b7401a3c8f4cd))