v0.4.0

Stronger invalidation during loading

Delete, Clear, and successful writes now prevent outstanding loaders from putting obsolete data back into the cache. New callers do not join invalidated loads; callers already waiting still receive their loader result.

The guarantee follows the storage key across typed views and parent-cache operations. Successful loader publications also supersede competing outstanding loads. Rejected writes leave loads unchanged. Tracking exists only for active loads.

Public API signatures are unchanged. This release changes late-publication behaviour: a cancelled loader that ignores cancellation can still warm the cache only if no invalidation or successful write has superseded it. Clear remains shard-by-shard, and Close only stops maintenance goroutines.

The README and API documentation describe ordering and migration implications. Regression tests cover positive and negative results, absent-key deletion, clearing, replacements, rejected writes, competing loads, and unrelated keys.

Install:

go get github.com/andared/sanecache@v0.4.0