RackBill Plugin SDK v0.4.0

Compatibility

Fix backup quota rotation to consider additional unprotected snapshots when retention-expired snapshots cannot satisfy byte or snapshot-count limits. Protected snapshots remain excluded; existing backup plugins require no API changes.
Add ContentProvider, ContentPack and ServeContentProvider for distributing portal translations as standalone plugins or bundle members.
Support validated locale packs applied through the portal draft and publication workflow, preserving existing wording by default and serializing concurrent edits.
Allow translations to be prepared for supported languages before they are offered to customers, including first-party dashboard wording and typed date and money messages.
Add a partial German content plugin example and guidance for exporting the complete portal translation catalog.

Install with go get rackbill.com/sdk@v0.4.0.