v.1.6.0

Improvements:

1. [LUNA-7629] Maximum stream reference length was increased to 2083 characters. See create stream.

Bugs fixed:

1. [LUNA-7665] The create stream request from now on return 422 status code instead of 400 status code in the case of one or more specified analytics not available.

Migration:

See a migration manual.

[LUNA-7629] #) Streams with reference longer than 512 characters will be removed during downgrade migration.