Build #21:   Test against more specific versions on branch master about 4 years ago

Build #26:   Improve docs on branch master almost 6 years ago

Build #41:   Allow removing all subscribers from channel on branch master about 8 years ago

Build #15:   bump version on branch master about 7 years ago

Build #8:   Show code-blocks in GH TL;DR ReST `code` and `code-block` directives are broken in GH ... on branch master over 8 years ago