Merge branch 'develop'

fix(cabal): version

chnage

Merge branch 'release/v1.2.6'

feat(stack): lts

11.4

Merge branch 'release/v1.2.5' into develop

Merge branch 'release/v1.2.5'

feat(cabal): version

feat(stack): tls

11.0

Merge branch 'release/v1.2.4' into develop

Merge branch 'release/v1.2.4'

feat(cabal): version

feat(operator): add a new operator

Merge branch 'release/v1.2.3'

fix(check): fix a check error

Merge branch 'develop'

chore(cabal verson):

Merge branch 'release/v1.2.2' into develop

Merge branch 'release/v1.2.2'

chore(bsd version):

Merge branch 'release/v1.2.1'