Dart SDK version 1.17 has been released.
The release announcement and the changelog have all of the details!
dart:convert
Deprecate ChunkedConverter which was erroneously added in 1.16.
dart:core
Uri.replace supports iterables as values for the query parameters.
Uri.parseIPv6Address returns a Uint8List.
dart:io
Added NetworkInterface.listSupported, which is true when NetworkInterface.list is supported, andfalse otherwise. Currently, NetworkInterface.list is not supported on Android.
Pub
TAR files created while publishing a package on Mac OS and Linux now use a more portable format.
Errors caused by invalid arguments now print the full usage information for the command.
SDK constraints for dependency overrides are no longer considered when determining the total SDK constraint for a lockfile.
A bug has been fixed in which a lockfile was considered up-to-date when it actually wasn't.
A bug has been fixed in which pub get --offline would crash when a prerelease version was selected.
Dartium and content shell
Debugging Dart code inside iframes improved, was broken.