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Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

drop policy

The rule for which message to throw away when the offline queue is full.

A drop policy decides what a full queue discards: drop-oldest keeps the most recent readings, drop-newest keeps the earliest ones.

Examples

  • With 12 readings and 8 slots, drop-oldest keeps readings 7 to 14 (the end of the outage); drop-newest keeps 3 to 10 (the start).

  • Drop-oldest suits a dashboard that cares most about recent values; drop-newest preserves the moment the outage began.

See also

offline queue store and forward
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