KIOKU v0.5.0 + v0.5.1 — unified ingest router + hot cache, shipped same day

Context I've been building KIOKU — a memory / second-brain OSS for Claude Code and Claude Desktop. The v0.4 post was a zero-new-features release with three "working but not correctly" stories. This post covers v0.5, which shipped two releases on the same day (2026-04-23): v0.5.0 : unified ingestion router for PDF / Markdown / EPUB / DOCX v0.5.1 : hot cache + PostCompact hook for cross-compaction short-term memory The arc is " ingest external knowledge → persist it across sessions ." Along the wa