Major changes in v.3.1.0:

• Changed primary branch from "master" to "main"
• Experimental forward compatibility with PHP 9.0 https://github.com/darkain/pudl/commit/4acd807b7df07503dc7029ffebad3cac73858e06
• Correcting MySQL max_execution_time https://github.com/darkain/pudl/commit/66b7c987fe628f8f825b0ed6193a2d888cd39488
• Benchmarking now returns start/stop instead of duration https://github.com/darkain/pudl/commit/fa4ab5992a2b0925f6229ebdcd05438ec3395e48
• Updating $db->explain() to support FORMAT=JSON https://github.com/darkain/pudl/commit/dac33f6ecfb484429bb92d5689264ed9ae3b3483
• Renaming version() to info() to avoid naming conflict https://github.com/darkain/pudl/commit/8dccd8c26e979911a237367338783d562d2dae71
• Adding handler for empty arrays with eq/neq functions https://github.com/darkain/pudl/commit/1ae73cdb1e4f63bbda5d156e8ead4e80cf9670d9