v0.16.0

What's Changed

• ci: workflow does not contain permissions by @supercaracal in #472
• fix: a TOCTOU race condition by @supercaracal in #473
• perf: improve hashtag extraction by @supercaracal in #474
• perf: reduce hash lookup by @supercaracal in #475
• fix: reduce wasted retries and mitigate thundering-herd problem on cluster-state change by @supercaracal in #476
• test: increase max-attempt count in test_against_cluster_broken.rb by @supercaracal in #477
• fix: revert reduction of retrying by @supercaracal in #478
• fix: use CLUSTER SHARDS instead of CLUSTER NODES by @supercaracal in #479
• docs: fix readme by @supercaracal in #480
• docs: fix English grammar, spelling, and unnatural phrasing by @supercaracal in #481
• docs: update class diagrams and sequence diagram to reflect current implementation by @supercaracal in #482
• build: release 0.16.0 by @supercaracal in #483

Full Changelog: v0.15.0...v0.16.0