Merge pull request #38 from teamssix/beta

feat: add object download function

Merge pull request #36 from teamssix/beta

doc: update version

Merge pull request #31 from teamssix/beta

doc: update version

Merge pull request #28 from teamssix/beta

feat: add takeover console function

Merge pull request #25 from teamssix/beta

doc: update version

Merge pull request #18 from teamssix/beta

docs: update readme

Merge pull request #15 from teamssix/beta

doc: update version

Merge pull request #10 from teamssix/beta

doc: update version

fix: fix a bug of automatic update failure

feat: add upgrade function