changelog

What changed, and why.

Reverse-chronological build log: papers, models, UI, infrastructure. Tags are honest. Nothing is silently shipped.

2026-05-08ui

Glassbox redesign

Full-site redesign — editorial serif × technical mono, live affect-bound accent, symbolic-trace hero, and seven new public pages (manifesto, architecture, research, try, pricing, about, changelog). The site now visually demonstrates what Serena is.

2026-04-15model

Lifespan curve revisions

Adjusted developmental priors at the 12–18y window to better match adolescent volatility data from the latest pass on the lifespan paper. Existing trace IDs remain stable; only forward inference is affected.

2026-03-02infra

Cloud Run · europe-west2

Moved the analyze API to europe-west2 for proximity to UK users. Median /v1/analyze latency dropped from 320ms to 140ms.

2026-02-10paper

Lifespan paper · v0.3

Third revision of the lifespan paper. Added the 6D DNA trait section, formalised newborn blending, expanded the homeostatic integration appendix.

2025-09-04model

Serena 1 · v1.0.0

First production tag. Symbolic core stable. 7D + 12D vectors locked. /v1/analyze endpoint live.

2025-05-30paper

Dissertation · final submission

Dissertation paper submitted at Bournemouth University. Thesis: white-box symbolic affective AI with full traceability is feasible and outperforms black-box LLM-based affect on the inspectability dimension by construction.