Address recurrent DNS queries

What's Changed

• add multiplexing information to guide by @sbSteveK in #541
• Add Cognito connect sample by @TwistedTwigleg in #536
• Split sample readme by @TwistedTwigleg in #544
• Update mainpage.md by @jmklix in #549
• Trivial documentation change by @TwistedTwigleg in #552
• CI and documentation generation adjustment by @TwistedTwigleg in #550
• Fix release script failing on releases with zero by @TwistedTwigleg in #553
• Mqtt5 shared subscription sample by @TwistedTwigleg in #556
• Shared Subscription sample readme adjustment by @TwistedTwigleg in #558
• Adjust MQTT5 and MQTT PubSub samples to output JSON by @TwistedTwigleg in #559
• Sample and command line refactor by @TwistedTwigleg in #563
• CRT update with DNS behavior improvements by @bretambrose in #564
• AutoTag PR for v1.22.0 by @TwistedTwigleg in #566

Full Changelog: v1.21.0...v1.22.0

Secure Tunnel multiplexing support

What's Changed

• X509 in ci by @TwistedTwigleg in #487
• Add the main page to the documentation by @TwistedTwigleg in #535
• GG model update: add client config argument to set async launch mode by @xiazhvera in #525
• Add CMake file for building all the samples at once by @TwistedTwigleg in #537
• Secure Tunnel V2 WebSocket Protocol support by @sbSteveK in #533
• AutoTag PR for v1.21.0 by @TwistedTwigleg in #538

Full Changelog: v1.20.3...v1.21.0

Fixing a low severity issue with parsing certificate Common Name (CN)

What's Changed

• CD always get latest version by @TwistedTwigleg in #528
• Fixing a low severity issue with parsing certificate Common Name (CN) by @sbSteveK in #530

Full Changelog: v1.20.2...v1.20.3

MQTT311 operation statistics support

What's Changed

• Only make lightweight tags in CD by @TwistedTwigleg in #523
• Update aws-crt-cpp by @TwistedTwigleg in #526
• AutoTag PR for v1.20.2 by @TwistedTwigleg in #527

Full Changelog: v1.20.1...v1.20.2

MQTT5 fixes and general improvements

What's Changed

• Update Mqtt5 Docs by @xiazhvera in #503
• New CD workflow by @TwistedTwigleg in #495
• ReadMe and Sample update by @xiazhvera in #504
• fix link by @jmklix in #507
• fix typo by @jmklix in #508
• document using system installation of libcrypto by @graebm in #511
• Update submodules to get latest fixes by @TwistedTwigleg in #514
• Fix minor mistake in release YAML by @TwistedTwigleg in #515
• Use the right token in the release script by @TwistedTwigleg in #517
• AutoTag PR for v1.20.1 by @TwistedTwigleg in #518

Full Changelog: v1.20.0...v1.20.1

Mqtt5 Support (Developer Preview)

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What's Changed

• Set github.head_ref as env in CI by @sbSteveK in #493
• Fix release workflow by @TwistedTwigleg in #498
• Mqtt5 Support by @xiazhvera in #500

Full Changelog: v1.19.3...v1.20.0

Add ECC key support for OSX

What's Changed

• CI Adjustment by @TwistedTwigleg in #482
• Add version stamping by @TwistedTwigleg in #474
• Initial Alpine CI by @bretambrose in #485
• Fix a few things missed in the version stamping PR by @TwistedTwigleg in #484
• New CodeBuild workflow by @TwistedTwigleg in #488
• Added Raspberry support for Github Action by @xiazhvera in #486
• Add option to save logs to file by @sbSteveK in #490
• Update to latest CRT-CPP submodule to bring in MacOS ECC key support by @xiazhvera in #491

Full Changelog: v1.19.2...v1.19.3

New credentials provider bindings and eventstream fix

What's Changed

• AppVerifier adjustment by @TwistedTwigleg in #478
• CRT update: Eventstream race fix, new credentials provider bindings by @bretambrose in #483

Full Changelog: v1.19.1...v1.19.2

Use tagged release of S2N

What's Changed

• Use tagged release of S2N by @graebm in #481

Full Changelog: v1.19.0...v1.19.1

Allow static and shared libs to be mixed

What's Changed

• Use latest versions of S2N-TLS and AWS-LC (crypto symbols now visible in static builds) by @graebm in #470
• Allow static and shared libs to be mixed by @graebm in #479

Full Changelog: v1.18.6...v1.19.0