v3.9.11

What's Changed

• Faster duckdb train u by @RobinL in #1800
• remove reference to deleted token by @RossKen in #1802
• material by mkdocs upgrade by @RossKen in #1803
• authors yml format fix by @RossKen in #1804
• Fix broken links by @RossKen in #1805
• Cluster studio sample by density by @zslade in #1754
• Cluster metrics - node degree + cluster centralisation by @ADBond in #1806
• Parallelise duckdb resulting in e.g. 2-4x speedup on 6 core machine by @RobinL in #1796
• Remove brittleness of convergence test by @RobinL in #1798
• Enable salting for EM training by @RobinL in #1832
• Fix linting workflows by @ADBond in #1836
• Refactor of 1664: add ability to do efficient blocking based on list/array intersections by @RobinL in #1692
• changelog: note add ability to block on array columns to by @RobinL in #1847
• 3.9.11 release by @RobinL in #1848

Full Changelog: v3.9.10...v3.9.11