Changelog

What's New?

All releases and updates from the ZenSation ecosystem.

ZenBrainv0.5.1October 11, 2026

Corrections only, no code changed: @zensation/mcp 0.2.1 names forget in its npm description; @zensation/core and @zensation/algorithms 0.5.1 list all five MCP tools in their READMEs
Security policy: 0.5.x is the current line; 0.4.x and 0.3.x receive security fixes until 31 December 2026
Every version, with its reasoning, in the CHANGELOG on GitHub

npmmcppatch

ZenBrainv0.5.0October 10, 2026

Forgetting by id: every recall result carries its id, forget(id, layer) deletes exactly that memory; new MCP tool zenbrain_forget
includeContext and taskType withdrawn: no store path ever wrote a context, so the options could not do anything
RecallOptions.core: 'matching' admits only core blocks that share a content word with the query
ai-sdk: shouldStore decides per turn whether to store, role sets the role memories reach the model with
PostgreSQL with pgvector now runs in CI; its first run found that procedures could not be stored on PostgreSQL, fixed
The README separates what the coordinator does on its own from what the algorithm library offers as functions

npmmcpminor

ZenBrainv0.4.10October 1, 2026

Late August, two integration packages: @zensation/mcp (an MCP server for any MCP client) and @zensation/ai-sdk (middleware for the AI SDK)
v0.4.8: recall without an embedding provider ranks lexically instead of answering every query with the same rows; every consolidation pass promoted the same episodes again, now once per episode; core memory now writable on SQLite
v0.4.9: findings of a package audit fixed; InMemoryStorage withdrawn from the public API, FSRS functions reject invalid input, types and require() across all packages
v0.4.10: security fix in the Postgres adapter (schema name in search_path)
Every version, with its reasoning, in the CHANGELOG on GitHub

npmmcpsecuritypatch

ZenBrainv0.4.0August 5, 2026

No runtime code changed: the packages now require Node.js 22 or newer; the previous >=18 was never accurate, the effective floor was already Node 20
@zensation/adapter-sqlite moves to better-sqlite3 13 (N-API, prebuilt binaries across Node versions)
Adapter peer ranges widened so that @zensation/core 0.3 fits

npmcompatibilityminor

ZenBrainv0.3.5July 17, 2026

@zensation/adapter-sqlite and @zensation/adapter-postgres now published to npm (0.1.0); the README had listed them as ready while they could not be installed
SQLite path through the MemoryCoordinator repaired: five defects that no integration check had caught, each reproduced on realistic data and fixed
New coordinator↔adapter integration tests, one for each of those defects

npmadapterpatch

ZenBrainv0.3.0May 9, 2026

@zensation/algorithms expanded and hardened (npm 0.3.x); @zensation/core updated to 0.2.2
Benchmark suite completed: LoCoMo and LongMemEval vs. Mem0, Letta, and A-Mem
Results documented in the open-access preprint (arXiv 2604.23878, Zenodo DOI)
Zero dependencies and Apache 2.0 license unchanged

npmbenchmarksminor

ZenBrainv0.2.1April 7, 2026

npmpatchstability

ZenBrainv0.2.0March 31, 2026

MemoryCoordinator orchestrates all 7 layers (store, recall, consolidate, decay, review)
Sleep Consolidation: Memory replay simulation (Stickgold & Walker 2013)
95% confidence intervals for all probabilistic outputs
Retention curve visualization for Ebbinghaus curves
Tests: 153 to 276 (+80%)
Numeric stability: epsilon guards in Hebbian, logger parameters
7 new docs: CONTRIBUTING, CoC, SECURITY, ROADMAP, FAQ, Benchmarks, API Reference

npmalgorithmscorecoordinator

ZenBrainv0.1.0March 30, 2026

npmlaunchalgorithmsopen-source