Breaking change (can be mitigated if needed in the future): v1 branch accepted an optional seconds field at the beginning of the cron spec. This is non-standard and has led to a lot of confusion. The new default parser conforms to the standard as described by [the Cron wikipedia page.](https://en.wikipedia.org/wiki/Cron). It is unlikely that this affects us per https://github.com/vmware-tanzu/velero/pull/31
Other notes:
> CRON_TZ is now the recommended way to specify the timezone of a single schedule, which is sanctioned by the specification. The legacy "TZ=" prefix will continue to be supported since it is unambiguous and easy to do so.
References: https://pkg.go.dev/github.com/robfig/cron/v3#readme-upgrading-to-v3-june-2019
Signed-off-by: Tiger Kaovilai <tkaovila@redhat.com>
Specify the risk of this parameter set to true. Add the issue first reported about this topic which includeds the google document illustrates about it.
Signed-off-by: Xun Jiang <jxun@vmware.com>
Tiger Kaovilai
Ming Qiu
Xun Jiang
Abigail McCarthy
Dharma Bellamkonda
Abigail McCarthy
Tony Batard