v1.14.0 — temporal query-resolution v1 (inert)
Temporal query resolution for recall: a deterministic parser turns a date expression inside a search query ("last week", "in June", "yesterday", "since 2026-05-01") into a date window, and results are re-ranked toward that window instead of by relevance alone. No model call is added to the read path.
Ships inert. The re-ranking path is gated on UM_TEMPORAL_QUERY=true, which is off by default — with the flag unset, search behaves exactly as it did in 1.13.2. What does run by default is a prevalence counter (recall.temporal_query) recording how often queries contain a resolvable date expression at all. That prevalence is the evidence base for deciding whether the feature is worth enabling.
- 12 expression kinds (
on_date,since_date,in_month,last_n,yesterday,today,last_week,this_week,last_month,this_month,last_year,this_year), deterministic parse only — no per-search model call, no added latency on the default path. - The ranking date is
metadata.valid_fromand nothing else.createdAtis deliberately not a fallback: it records bulk-arrival time, so ranking on it would order results by which import batch they happened to land in. - Honest reach today is 47.3% of stored points — the ones carrying
valid_from. The write-side stamp that lifts it is the next change; it heals the corpus forward, with no backfill or migration. - Query input is bounded at 512 chars with ReDoS timing gates; quoted spans are excluded from date matching (apostrophes preserved).
- The mem0-compat facade emits the same prevalence counter but is not re-ranked — a recorded v1 limitation, not an oversight: that path's fetch/limit semantics deserve their own decision.
- Also in this release:
.env.example/install.sh/ OpenAPI surface for the new flag, and the regenerated Custom GPT actions spec.
Deployment note: upgrading needs no configuration change — leave UM_TEMPORAL_QUERY unset to keep current behavior.
Release image: ghcr.io/goldenwo/universal-memory-server (semver tags). See the repository README for setup and upgrade instructions.