* Feature: added `GuzzleHttp\json_encode` and `GuzzleHttp\json_decode`. https://github.com/guzzle/guzzle/pull/1389 * Bug fix: Fix sleep calculation when waiting for delayed requests. https://github.com/guzzle/guzzle/pull/1324 * Feature: More flexible history containers. https://github.com/guzzle/guzzle/pull/1373 * Bug fix: defer sink stream opening in StreamHandler. https://github.com/guzzle/guzzle/pull/1377 * Bug fix: do not attempt to escape cookie values. https://github.com/guzzle/guzzle/pull/1406 * Feature: report original content encoding and length on decoded responses. https://github.com/guzzle/guzzle/pull/1409 * Bug fix: rewind seekable request bodies before dispatching to cURL. https://github.com/guzzle/guzzle/pull/1422 * Bug fix: provide an empty string to `http_build_query` for HHVM workaround. https://github.com/guzzle/guzzle/pull/1367