Changelog

All notable, user-visible changes to konserve-s3 are documented here.

Unreleased

Added

• Read-miss-safe reads (single GET, no HEAD). The S3 backing implements konserve's PReadMissSafe and its -read-header throws store-key-not-found-ex on an absent object. On a konserve that supports the marker, a read is a single GET (the redundant HEAD existence probe is dropped), and read-modify-write ops (update-in / assoc-in / bassoc) skip the HEAD too — a hit goes from HEAD + GET + PUT to GET + PUT. Requires konserve with PReadMissSafe (older konserve simply keeps the probe).
• dissoc with :ignore-existence? true skips the HEAD. DeleteObject is idempotent, so a caller that does not need the existed?/false-for-missing return can delete in a single request. konserve-s3 is single-key, so konserve's GC sweep takes this path — each dead-object delete is one DELETE instead of HEAD + DELETE. The default dissoc still probes to honour the contract.