v2.15.6
feat: add change log 2.15.0 (#20692)
chore: upgrade dependencies and fix demo bug (#15324)
chore : update build config (#14821)
fix eslint error in gen-single-config.js
update release scripts
Chore: SSR test (#16797)
Chore: speeding up webpack (#14484)
update webpack config (#17373)
Chore: Theme Extension (#16686)