Back in the pre-5.0 dark ages, Elasticsearch lacked a secure scripting language. And the people were sad! But our hero Painless came in 5.0, the shining new default, careful, quick, and kind. Ever watchful of its whitelist and loop counters, Painless protects Elasticsearch from malign mandate, inadvertent or iniquitous.
Gather and hear of Painless' guiding principles, see the features they represent, and, time permitting, discuss Painless' future.