1.9.0 - Goodbye cpp11

This will be the last release where the minimum required C++ standard is cpp11. With the next major release (1.10.0) in ~late 2022/early 2023 we will increase the minimum C++ standard to cpp17 (Issue).
This release (1.9.0) will still receive bug fixes, at least until the end of 2023, but all new features require from now on a cpp17 compatible compiler.

Thanks to everyone who helped making this next release of cpr possible 🎉!
Especially I would like to thank @simon-berger, @saendigPhilip @leviliangtw .

In case everything goes like planed we will even offer a .deb package and a NuGet package soon.
So stay tuned!

What's Changed

• Improve usability for ResponseStringReserve by @WorkingRobot in #726
• Make sure mutex is properly initialized by @cordbleibaum in #728
• Only use CURLOPT_SSLKEY_BLOB on curl 7.71.0+ by @alebcay in #737
• Unified basic, digest and ntlm authentication into one authenticaton class by @simon-berger in #735
• Use UpdateHeader to allow header updates from different sources by @simon-berger in #738
• Added function to get the full request URL by @simon-berger in #741
• Improved range requests and added support for multiple ranges by @simon-berger in #742
• Use thread pool to instead of std::async (#633) by @ithewei in #734
• Add Interceptors by @simon-berger in #744
• Support for CURLOPT_LOCALPORT and CURLOPT_LOCALPORTRANGE by @jmhersc in #748
• Add CaBuffer to enable loading of CA certificates from buffers by @simon-berger in #750
• Add method SetAcceptEncoding for customized Accept-Encoding header (#683) by @leviliangtw in #746
• Add support of customized filename for Multipart (#642) by @leviliangtw in #755
• Added CI script for automatically building a debian package by @saendigPhilip in #760
• Add unit tests for file uploading using buffer of rvalue/lvalue reference (#216) by @leviliangtw in #764
• Add async methods to the Session object interface by @simon-berger in #756
• Add support of file and buffer for the POST Body (#581) by @leviliangtw in #763
• Securely remove sensitive data from memory by @Garfield96 in #776
• secureStringClear Fix for Empty Strings by @COM8 in #779
• New certificates for HTTPS tests by @saendigPhilip in #773
• MacOS and Windows OpenSSL CI fixes by @COM8 in #783
• Refactor cpr::Cookies for storing more fields (#777) by @leviliangtw in #778
• Fix certificate information extraction from the response (#769) by @leviliangtw in #781
• Workaround for PUT requests with a read callback by @COM8 in #787

New Contributors

• @WorkingRobot made their first contribution in #726
• @cordbleibaum made their first contribution in #728
• @alebcay made their first contribution in #737
• @simon-berger made their first contribution in #735
• @ithewei made their first contribution in #734
• @jmhersc made their first contribution in #748
• @leviliangtw made their first contribution in #746
• @saendigPhilip made their first contribution in #760

Full Changelog: 1.8.4...1.9.0