# Changelog

## [1.18.1](https://github.com/googleapis/gax-php/compare/v1.18.0...v1.18.1) (2022-12-06)


### Bug Fixes

* Message parameters in required querystring ([#430](https://github.com/googleapis/gax-php/issues/430)) ([77bc5e1](https://github.com/googleapis/gax-php/commit/77bc5e1cb8f347601d9237bf5164cf8b8ad8aa0f))

## [1.18.0](https://github.com/googleapis/gax-php/compare/v1.17.0...v1.18.0) (2022-12-05)


### Features

* Add ResourceHelperTrait ([#428](https://github.com/googleapis/gax-php/issues/428)) ([0439efa](https://github.com/googleapis/gax-php/commit/0439efa926865be5fea25b699469b0c1f8c1c768))

## [1.17.0](https://github.com/googleapis/gax-php/compare/v1.16.4...v1.17.0) (2022-09-08)


### Features

* Add startAsyncCall support ([#418](https://github.com/googleapis/gax-php/issues/418)) ([fc90693](https://github.com/googleapis/gax-php/commit/fc9069373c329183e07f8d174084c305b2308209))

## [1.16.4](https://github.com/googleapis/gax-php/compare/v1.16.3...v1.16.4) (2022-08-25)


### Bug Fixes

* use interfaceOverride instead of param ([#419](https://github.com/googleapis/gax-php/issues/419)) ([9dd5bc9](https://github.com/googleapis/gax-php/commit/9dd5bc91c4becfd2a0832288ab2406c3d224618e))

## [1.16.3](https://github.com/googleapis/gax-php/compare/v1.16.2...v1.16.3) (2022-08-23)


### Bug Fixes

* add eager threshold ([#416](https://github.com/googleapis/gax-php/issues/416)) ([99eb172](https://github.com/googleapis/gax-php/commit/99eb172280f301b117fde9dcc92079ca03aa28bd))

## [1.16.2](https://github.com/googleapis/gax-php/compare/v1.16.1...v1.16.2) (2022-08-16)


### Bug Fixes

* use responseType for custom operations ([#413](https://github.com/googleapis/gax-php/issues/413)) ([b643adf](https://github.com/googleapis/gax-php/commit/b643adfc44dd9fe82b0919e5b34edd00c7cdbb1f))

## [1.16.1](https://github.com/googleapis/gax-php/compare/v1.16.0...v1.16.1) (2022-08-11)


### Bug Fixes

* remove typehint from extended method ([#411](https://github.com/googleapis/gax-php/issues/411)) ([fb37f73](https://github.com/googleapis/gax-php/commit/fb37f7365e888465d84fca304ca83360ddbae6c3))

## [1.16.0](https://github.com/googleapis/gax-php/compare/v1.15.0...v1.16.0) (2022-08-10)


### Features

* additional typehinting ([#403](https://github.com/googleapis/gax-php/issues/403)) ([6597a07](https://github.com/googleapis/gax-php/commit/6597a07019665d91e07ea0a016c7d99c8a099cd2))
* drop support for PHP 5.6 ([#397](https://github.com/googleapis/gax-php/issues/397)) ([b888b24](https://github.com/googleapis/gax-php/commit/b888b24e0e223784e22dbbbe27fe0284cdcdfc35))
* introduce startApiCall ([#406](https://github.com/googleapis/gax-php/issues/406)) ([1cfeb62](https://github.com/googleapis/gax-php/commit/1cfeb628070c9c6e57b2dde854b0a973a888a2bc))


### Bug Fixes

* **deps:** update dependency google/longrunning to ^0.2 ([#407](https://github.com/googleapis/gax-php/issues/407)) ([54d4f32](https://github.com/googleapis/gax-php/commit/54d4f32ba5464d1f5da33e1c99a020174cae367c))

## [1.15.0](https://github.com/googleapis/gax-php/compare/v1.14.0...v1.15.0) (2022-08-02)


### Features

* move LongRunning classes to a standalone package ([#401](https://github.com/googleapis/gax-php/issues/401)) ([1747125](https://github.com/googleapis/gax-php/commit/1747125c84dcc6d42390de7e78d2e326884e1073))

## [1.14.0](https://github.com/googleapis/gax-php/compare/v1.13.0...v1.14.0) (2022-07-26)


### Features

* support requesting numeric enum rest encoding ([#395](https://github.com/googleapis/gax-php/issues/395)) ([0d74a48](https://github.com/googleapis/gax-php/commit/0d74a4877c5198cfaf534c4e55d7e418b50bc6ab))
