v1.51.0

[1.51.0] — 2026-06-13

Added

• Automated SDK publishing to PyPI, npm, and Go module tags (#92)

• Formal SLO definitions, runbooks, Go benchmarks, k6 load test (#94)

• graph: Cognitive Graph layer via Apache AGE (experimental spike)

• ci: Add 14-phase automated bug hunt pipeline (#127)

Changed

• ci: Update coverage badge [skip ci]

• ci: Update coverage badge [skip ci]

• deps: Bump actions/setup-go from 5 to 6 (#100)

• deps: Bump github/codeql-action from 3 to 4 (#99)

• deps: Bump actions/setup-node from 4 to 6 (#98)

• ci: Update coverage badge [skip ci]

• ci: Update coverage badge [skip ci]

• deps: Bump actions/setup-python from 5 to 6 (#97)

• deps: Bump actions/checkout from 4 to 6 (#96)

• ci: Update coverage badge [skip ci]

• Improve CODEOWNERS with more granular rules and comments (#107)

• Add massive realistic multi-agent workload test (real agent usage scenario) (#110)

• Coverage 30.3%→44.3% — handler/webhook DB interfaces, integration tests, fix 4 bugs, exclude protobuf (#115)

• ci: Update coverage badge [skip ci]

• Translate entire repo from Italian to English (#117)

• ci: Update coverage badge [skip ci]

• handler: Extract shared helpers — ageNotAvailable, tenantID, parseLinkTypes, timed, graphError (#118)

• Increase coverage from 39.4% to 41.1% — unit tests for 7 packages (#121)

• ci: Update coverage badge [skip ci]

• k8s: Remove leftover test-write probe file from PR #4 (#122)

• docker: Document Dockerfile variants and clarify role of each (#125)

• k8s: Consolidate manifests under deploy/k8s/{base,overlays} (#124)

• version: Align in-code version references with v1.50.0 tag (#123)

• deps: Bump go.opentelemetry.io/otel/trace from 1.43.0 to 1.44.0 (#141)

• deps: Bump go.opentelemetry.io/otel/sdk from 1.43.0 to 1.44.0 (#138)

• deps: Bump github.com/redis/go-redis/v9 from 9.19.0 to 9.20.0 (#140)

• deps: Bump go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc (#135)

• deps: Bump go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp (#137)

• deps: Bump github.com/jackc/pgx/v5 from 5.9.2 to 5.10.0 (#139)

• deps: Bump actions/checkout from 4 to 6 (#131)

• ci: Update coverage badge [skip ci]

• deps: Bump docker/build-push-action from 6 to 7 (#134)

• ci: Update coverage badge [skip ci]

• deps: Bump docker/login-action from 3 to 4 (#130)

• deps: Bump docker/setup-qemu-action from 3 to 4 (#132)

• deps: Bump docker/setup-buildx-action from 3 to 4 (#133)

• ci: Update coverage badge [skip ci]

Documentation

• Add CODE_OF_CONDUCT.md (Contributor Covenant) and improve link in CONTRIBUTING.md (#101)

• Add GitHub issue templates (bug, feature, security) + config.yml (#103)

• Add AGENTS.md with PCMI-specific rules for AI coding agents (#104)

• Add runbook for API key rotation (#108)

• citation: Add CITATION.cff for paper and software citation (#126)

• README v2 — compelling rewrite with benchmarks, integrations, and honest comparison (#142)

Fixed

• helm: Sync Chart.yaml appVersion to v1.50.0

• test: Allow total to increase between pagination pages under parallel CI

• Raise coverage thresholds to 60% global + complete OpenAPI spec (14 missing routes) (#93)

• Remove orphaned root scripts + add interactive quickstart demo (#95)

• Fix Quickstart section in README.md

Restored Quickstart section in README with instructions and requirements.

• Add nil guards for RedisClient and store/merge results (#128)

• ci: Install hadolint from GitHub release binary (#143)

• ci: Unblock daily scheduled bug-hunt job (#145)

• worker: Enforce expires_at TTL and repair contradiction detection (#144)

• ci: Restore SDK publish workflow and honest install docs (#146)

Ci

• Production-grade coverage sticky comment system (addresses points 1-8) (#119)

[1.50.0] — 2026-05-25

1.1

• Distillation Engine – tabella e worker base

Added

• v1.12.0: Distilled knowledge versioning

• v1.12.0: Pruning worker for superseded memories

• v1.12.0: Webhook notifications on Redis events

• v1.12.0: Encrypted sensitive memory content

• v1.12.0: Embedding migration API and Kubernetes manifests

• v1.18.0: Orchestrator examples and optional PostgreSQL read replica

• v1.19.0: Memory path compaction and leaner CI smoke

• v1.20.0: GRPC batch/stream retrieve and OpenTelemetry

• v1.21.0: GRPC BatchStore, version package, readonly parity

• v1.22.0: GRPC retrieve parity with REST filters

• v1.23.0: OpenTelemetry for worker and Init service name

• worker: Prometheus /metrics and redis event counters

• v1.24.0: GRPC store parity with REST + integration tests

• v1.25.0: GRPC store client embedding vector + HTTP-only API docs

• v1.26.0: GRPC retrieve response parity with REST MemoryEntry

• v1.27.0: SDK HTTP-only docs and client parity polish

• v1.28.0: GRPC GetMemory/Compact, SDK admin, CI sdk-smoke

• v1.29.0: GRPC parity for operational HTTP APIs

• v1.31.0: Distillation E2E test, report fix, LIMIT 100

• sprint1: Centralized config with fail-fast validation + K8s HPA/PDB/resource limits

• v1.33.0: Security hardening — govulncheck, TLS, per-role rate limiting

• v1.34.0: Bounded distillation concurrency + distillation metrics

• distillation-e2e: Dynamic sharding + docs

• observability: Separate API/worker images, Trivy scan, Grafana dashboard, alert rules

• devx: Run CI workflows locally with act

• grpc: TLS for gRPC server, Helm chart, CodeQL, and K8s hardening

• Admin UI, embedding factory, cursor helpers, proto contracts

• Wire memory cursor pagination and gRPC admin/metrics servers

• Unified synthetic data CLI and E2E script cleanup

• event: Add Redis Streams durable event bus

• embedding: Circuit breaker for OpenAI embedding

• ratelimit: Distributed sliding-window limits via Redis

• webhook: HMAC-SHA256 signed deliveries (PCMI-006) CI_start

• MCP stdio server for AI agents (v1.41.0) CI_start

• sessions: Add agent session and working memory layer (PCMI-010)

• PCMI-011: Content-hash deduplication at ingest (v1.44.0)

• pagination: Cursor-based list endpoints (PCMI-014, v1.47.0)

• PCMI-016: AI framework examples for LangChain, LlamaIndex, AutoGen, CrewAI (v1.49.0)

• Address 10 missing features identified in codebase audit

• Release pipeline — GitHub Releases + ghcr.io container image (#90)

CI_start

• Trigger full PR pipeline after coverage fix

Changed

• Test finale v.1.1 ok

• Test

• Test

• v1.12.0: CI smoke tests and docs for release

• Drop flaky high-volume metrics scrape test

• Add local_smoke_orchestration script for replica and Temporal

• Ignore Python pycache under repo

• v1.32.0: Add go test -race to CI and expand unit test coverage

• Extend coverage to service, middleware, handler, worker

• config: Add unit and integration tests for centralized config

• deps: Bump actions/checkout from 4 to 6

• deps: Bump golangci/golangci-lint-action from 7 to 9

• deps: Bump docker/setup-buildx-action from 3 to 4

• deps: Bump actions/setup-go from 5 to 6

• deps: Bump go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp

• deps: Bump github.com/prometheus/client_golang

• deps: Bump github.com/gofiber/fiber/v2 from 2.52.12 to 2.52.13

• deps: Bump google.golang.org/grpc from 1.80.0 to 1.81.1

• deps: Bump github.com/alicebob/miniredis/v2 from 2.34.0 to 2.38.0

• deps: Bump github.com/jackc/pgx/v5 from 5.7.2 to 5.9.2

• Add config .env drift guard and gRPC port resolution tests

• ci: Update coverage badge [skip ci]

• deps: Bump github.com/pgvector/pgvector-go from 0.3.0 to 0.4.0

• deps: Bump marocchino/sticky-pull-request-comment from 2 to 3

• deps: Bump docker/setup-buildx-action from 3 to 4

• deps: Bump actions/upload-artifact from 4 to 7

• deps: Bump actions/github-script from 7 to 9

• deps: Bump actions/checkout from 4 to 6

• deps: Bump github.com/valyala/fasthttp from 1.51.0 to 1.71.0

• Add ready, stats route, links list, and webhook coverage

• Cover events ingest, links list, and summarize handlers

• Add history, lineage, audit, and distilled handler coverage

• worker: Fix expiry integration runOnce call signature

• worker: Cover distillation constructor and Start shutdown

• Test

• Add branch verification script for config-env cleanup

• config: Add getenv invariant + wire CI/local audit step

• Test CI_start

• Cover admin UI, embedding setup, cursor retrieve, and proto contracts

• Integration coverage for admin/embedding/cursor and document SSE httptest pitfall

• Expand gRPC admin/metrics and repository cursor integration

• Test python fix

• event: Improve stream coverage and sync Helm appVersion

• stream: Fix race in integration publish/consume test

• version: Bump to v1.35.0

• ci: Trigger full GitHub Actions CI_start

• repository: CI_start raise coverage above 70% floor

• ci: Trigger full GitHub Actions CI_start

• Hardening tests and redis nil guards (PCMI-004 follow-up)

• Add edge-case tests for key lifecycle and admin paths

• ci: Auto-free 5432/6379 before compose and act

• PCMI-009: Add manual smoke script for importance retrieve ranking

• Raise repository and service coverage above CI floor

• Expand test-full-real with sessions smoke and MCP unit

• test: Make smoke_sessions.sh executable

• dedup: Edge cases and smoke script

• Add CODEOWNERS for main branch review policy

• PCMI-015: API versioning policy, git-cliff, and release workflow (v1.48.0)

• ci: Enterprise pipeline structure with shared scripts

• ci: Update coverage badge [skip ci]

• stress: Massive concurrent test s...

Cognitive Graph UI demo

90s walkthrough of /v1/graph/ui (embedded in README).

v1.50.0

[1.50.0] — 2026-05-25

1.1

• Distillation Engine – tabella e worker base

Added

• v1.12.0: Distilled knowledge versioning

• v1.12.0: Pruning worker for superseded memories

• v1.12.0: Webhook notifications on Redis events

• v1.12.0: Encrypted sensitive memory content

• v1.12.0: Embedding migration API and Kubernetes manifests

• v1.18.0: Orchestrator examples and optional PostgreSQL read replica

• v1.19.0: Memory path compaction and leaner CI smoke

• v1.20.0: GRPC batch/stream retrieve and OpenTelemetry

• v1.21.0: GRPC BatchStore, version package, readonly parity

• v1.22.0: GRPC retrieve parity with REST filters

• v1.23.0: OpenTelemetry for worker and Init service name

• worker: Prometheus /metrics and redis event counters

• v1.24.0: GRPC store parity with REST + integration tests

• v1.25.0: GRPC store client embedding vector + HTTP-only API docs

• v1.26.0: GRPC retrieve response parity with REST MemoryEntry

• v1.27.0: SDK HTTP-only docs and client parity polish

• v1.28.0: GRPC GetMemory/Compact, SDK admin, CI sdk-smoke

• v1.29.0: GRPC parity for operational HTTP APIs

• v1.31.0: Distillation E2E test, report fix, LIMIT 100

• sprint1: Centralized config with fail-fast validation + K8s HPA/PDB/resource limits

• v1.33.0: Security hardening — govulncheck, TLS, per-role rate limiting

• v1.34.0: Bounded distillation concurrency + distillation metrics

• distillation-e2e: Dynamic sharding + docs

• observability: Separate API/worker images, Trivy scan, Grafana dashboard, alert rules

• devx: Run CI workflows locally with act

• grpc: TLS for gRPC server, Helm chart, CodeQL, and K8s hardening

• Admin UI, embedding factory, cursor helpers, proto contracts

• Wire memory cursor pagination and gRPC admin/metrics servers

• Unified synthetic data CLI and E2E script cleanup

• event: Add Redis Streams durable event bus

• embedding: Circuit breaker for OpenAI embedding

• ratelimit: Distributed sliding-window limits via Redis

• webhook: HMAC-SHA256 signed deliveries (PCMI-006) CI_start

• MCP stdio server for AI agents (v1.41.0) CI_start

• sessions: Add agent session and working memory layer (PCMI-010)

• PCMI-011: Content-hash deduplication at ingest (v1.44.0)

• pagination: Cursor-based list endpoints (PCMI-014, v1.47.0)

• PCMI-016: AI framework examples for LangChain, LlamaIndex, AutoGen, CrewAI (v1.49.0)

• Address 10 missing features identified in codebase audit

• Release pipeline — GitHub Releases + ghcr.io container image (#90)

CI_start

• Trigger full PR pipeline after coverage fix

Changed

• Test finale v.1.1 ok

• Test

• Test

• v1.12.0: CI smoke tests and docs for release

• Drop flaky high-volume metrics scrape test

• Add local_smoke_orchestration script for replica and Temporal

• Ignore Python pycache under repo

• v1.32.0: Add go test -race to CI and expand unit test coverage

• Extend coverage to service, middleware, handler, worker

• config: Add unit and integration tests for centralized config

• deps: Bump actions/checkout from 4 to 6

• deps: Bump golangci/golangci-lint-action from 7 to 9

• deps: Bump docker/setup-buildx-action from 3 to 4

• deps: Bump actions/setup-go from 5 to 6

• deps: Bump go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp

• deps: Bump github.com/prometheus/client_golang

• deps: Bump github.com/gofiber/fiber/v2 from 2.52.12 to 2.52.13

• deps: Bump google.golang.org/grpc from 1.80.0 to 1.81.1

• deps: Bump github.com/alicebob/miniredis/v2 from 2.34.0 to 2.38.0

• deps: Bump github.com/jackc/pgx/v5 from 5.7.2 to 5.9.2

• Add config .env drift guard and gRPC port resolution tests

• ci: Update coverage badge [skip ci]

• deps: Bump github.com/pgvector/pgvector-go from 0.3.0 to 0.4.0

• deps: Bump marocchino/sticky-pull-request-comment from 2 to 3

• deps: Bump docker/setup-buildx-action from 3 to 4

• deps: Bump actions/upload-artifact from 4 to 7

• deps: Bump actions/github-script from 7 to 9

• deps: Bump actions/checkout from 4 to 6

• deps: Bump github.com/valyala/fasthttp from 1.51.0 to 1.71.0

• Add ready, stats route, links list, and webhook coverage

• Cover events ingest, links list, and summarize handlers

• Add history, lineage, audit, and distilled handler coverage

• worker: Fix expiry integration runOnce call signature

• worker: Cover distillation constructor and Start shutdown

• Test

• Add branch verification script for config-env cleanup

• config: Add getenv invariant + wire CI/local audit step

• Test CI_start

• Cover admin UI, embedding setup, cursor retrieve, and proto contracts

• Integration coverage for admin/embedding/cursor and document SSE httptest pitfall

• Expand gRPC admin/metrics and repository cursor integration

• Test python fix

• event: Improve stream coverage and sync Helm appVersion

• stream: Fix race in integration publish/consume test

• version: Bump to v1.35.0

• ci: Trigger full GitHub Actions CI_start

• repository: CI_start raise coverage above 70% floor

• ci: Trigger full GitHub Actions CI_start

• Hardening tests and redis nil guards (PCMI-004 follow-up)

• Add edge-case tests for key lifecycle and admin paths

• ci: Auto-free 5432/6379 before compose and act

• PCMI-009: Add manual smoke script for importance retrieve ranking

• Raise repository and service coverage above CI floor

• Expand test-full-real with sessions smoke and MCP unit

• test: Make smoke_sessions.sh executable

• dedup: Edge cases and smoke script

• Add CODEOWNERS for main branch review policy

• PCMI-015: API versioning policy, git-cliff, and release workflow (v1.48.0)

• ci: Enterprise pipeline structure with shared scripts

• ci: Update coverage badge [skip ci]

• stress: Massive concurrent test suite + fix 2 production race conditions

• make: Add distill target

• make: Add distill-stress target

• ci: Update coverage badge [skip ci]

Documentation

• v1.30.0: Guida completa, diagrammi e indice documentazione

• readme: Add distillation pipeline section + link to docs/distillation-tests.md

• ci: Add full real-world validation target

• Document sprint 1–2 features and validation commands

• Document cursor pagination and list response fields

• Record applied main branch protection state

Fixed

• Retrieve query - risolto errore tipo parametro

• v1.1: Embedding provider - cast corretto EmbeddingModel

• v1.1: Retrieve con LIKE per path matching stabile

• v1.1: Retrieve con ltree <@ stabile

• v1.1: Retrieve con cast path::text LIKE per compatibilità stabile

• Use valid CREATE POLICY syntax in migration 003

• Default empty metadata on memory store

• Scan nullable embeddings on memory retrieve

• v1.12.0: Mount migration 008 in docker compose

• v1.14.0: Register memory wildcard route after specific paths.

• v1.14.0: Serve Prometheus /metrics via fasthttpadaptor.

• ci: V1.14 metrics smoke greps HELP lines after a store.

• v1.14.0: Expose /metrics via direct Prometheus text encoding.

• v1.15.0: Mount migration 011 in docker-compose for E2E

• v1.15.0: Lineage routes outside /memories wildcard, CI metrics grep

• ci: GRPC version check, rate limit in E2E, metrics smoke

• v1.15.0: Lineage SQL column and promhttp metrics handler

• metrics: Dedicated registry and disable OpenMetrics timestamps

• ci: Scrape /metrics without gzip for grep checks

• metrics: Drop HTTP vec counters causing duplicate scrape errors

• smoke: Resilient pip for Temporal and skip venv when deps exist

• telemetry: Use noop.TracerProvider for staticcheck SA1019

• test: Report x→y con atteso z e verifica esplicita PASS/FAIL

• test: Conteggio 429 senza doppio zero da grep -c

• lint: Move distillationBatchSize to distillation_helpers.go

• lint: Remove unused readBodyJSON helper and storePath field

• deps: Upgrade Go to 1.25 + golang.org/x/net@v0.53.0

• ci: Add feat/* branch trigger + fix EXPECT_VERSION to v1.33.0

• deps: Upgrade vulnerable dependencies to clear govulncheck

• ci: Upgrade golangci-lint v2.1.6→v2.12.2 for Go 1.25 compat

• docker: Upgrade base image golang:1.24-alpine → golang:1.25-alpine

• ci: Repair trivy tag, redis pubsub race, and local act workflow

• act: Skip trivy-images steps under act, chain make act-trivy in act-all

• act: Stub integration-smoke under ACT + host parity script

• scripts: Wait for Postgres initdb in act_integration_smoke_host

• act: Preflight frees 5432/6379 before act push

• scripts: Robust Postgres wait in act_integration_smoke_host

• scripts: Portable expires_at in ci_integration_smoke on macOS

• Fix act makefile

• Fix coverage pr

• Fix gorutine

• test: Stabilize SSE integration test under -race

• test: Wait for SSE GET before POST in EventStream integration test

• test: Skip flaky SSE httptest on GitHub Actions

• handler: Restore SSE Redis subscribe lifecycle for /v1/events

• test: Skip adaptor SSE httptest on GHA only

• ci: Make CodeQL SARIF upload opt-in via CODEQL_UPLOAD_SARIF

• Fix makefile and testing scripts

• Fix docs

• Fix docs

• config: Load EVENT_BACKEND via config package

• config: Satisfy lint on rate limit validation

• webhook: Align outbound HMAC with timestamped payload

• test: Align RotateAPIKey calls with lifecycle API

• mcp: Read env via internal/config for audit

• distill-smoke: Publish refine events on Redis Streams

• pagination: Restore CI failures on pagination branch

• pagination: Restore audit total for smoke and SDK compat

• pagination: Restore admin tenants total for smoke Phase G

-...