tag v1.28

tag v1.27

tag v1.26

update CHANGELOG.md for #3397

Merge pull request #3397 from bhcleek/syntax/generics

syntax: add support for generics

tag v1.25

tag v1.24

Merge pull request #3008 from bhcleek/highlight/reenable-test

Revert "test: disable highlight tests"

tag v1.23

update CHANGELOG.md for v1.22