v0.6.0 — Gremlin persistence and backend acceptance tests

UModel v0.6.0 adds Gremlin persistence and verifies the complete query and client surface against real graph backends, including authenticated TLS, failure paths, and database restarts.

Features

• Add the gremlin GraphStore provider for workspace-scoped model, entity, and topology persistence over GraphSON 3 WebSocket requests (#114).
• Configure plain or verified TLS connections through GREMLIN_*, with optional SASL authentication and PEM certificate authorities.
• Add make test-gremlin-matrix and CI coverage for real Gremlin Server 3.7.3, including REST, CLI, MCP, Go SDK, query methods, historical visibility, concurrent writes, server failures, and persistence recovery.

Fixes and improvements

• Restore derived schema and search indexes from persisted records after application restart, including RunbookSet and keyword/vector/hyper routing.
• Keep search indexes consistent with successful entity mutations: rejected Create and same-batch Update/Delete no longer introduce stale search rows.
• Return the stable TIMEOUT error for planning-stage deadlines and fix workspace pagination skipping records.
• Decode the current REST query matrix envelope in the Go service SDK.
• Serialize WebSocket operations without background pool shutdown/reconnect races, send large requests in one frame, and guard allocation-size calculations.
• Stabilize Docker restart validation by pinning the persistent test server's published port.
• Remove private documentation links and enforce public-link checks.

Download and run

OS	amd64 / x86-64	arm64 / AArch64
Linux	umodel_v0.6.0_linux_amd64.tar.gz	umodel_v0.6.0_linux_arm64.tar.gz
macOS	umodel_v0.6.0_darwin_amd64.tar.gz	umodel_v0.6.0_darwin_arm64.tar.gz
Windows	umodel_v0.6.0_windows_amd64.zip	umodel_v0.6.0_windows_arm64.zip

Each bundle includes umodel-server, umctl, umodel-mcp, the production Web UI, three sample packs, a license, build metadata, and startup instructions. No Go or Node.js installation is needed to run the bundle.

After extracting, run from the bundle directory:

./umodel-server --addr 127.0.0.1:8080 --graphstore file.memory --data ./data --ui-dir ./web --quickstart

On Windows, use .\umodel-server.exe with the same arguments. Open http://localhost:8080 and select demo. Preserve data/ across restarts. Verify downloads against SHA256SUMS; build-info.json records the source revision, build time, Go version, and target platforms.

Compatibility

The bundles include memory, file.memory, neo4j, and gremlin. local.ladybug requires a separate tagged build and native library. Gremlin endpoints require GraphSON 3 and bound gremlin-groovy scripts. Use one writing provider instance per graph, and keep request batches within the 1 MiB limit.

Public reads remain behind Query Service and its SPL/read-only Cypher surface. graph-match is not advertised by the Gremlin provider. Transaction rollback is verified on TinkerTransactionGraph; non-transactional TinkerGraph can retain partial writes after a server failure. The default embedder is noop; search routing and index recovery are validated, not embedding quality.

Validation

• The exact release commit passed main CI, including the local gate, browser E2E, Gremlin acceptance matrix, Ladybug, and both Neo4j dialects.
• Production UI type-check/build and all six platform builds passed.
• All archives passed contents, executable architecture, embedded source/version metadata, and SHA256 checks.
• Native macOS ARM64 and Linux ARM64 bundles passed CLI version/query, HTTP/UI, model/entity/topology query, agent discovery, and MCP manifest smoke checks. Linux persistent data was also reopened without reseeding.

中文摘要

• 新增 Gremlin provider，支持模型、实体与拓扑持久化，以及 TLS、SASL 认证和自定义 CA。
• 修复重启后的 schema/搜索索引恢复、失败写入导致的搜索结果不一致、查询超时、工作区分页及 Go SDK 查询响应解析。
• 完整验证真实 Gremlin Server 的查询、写入、REST/CLI/MCP/SDK、事务回滚、断连和数据库重启。
• 提供 Linux、macOS、Windows 的 amd64/arm64 安装包，包含 Web UI 与样例数据；开箱运行无需 Go 或 Node.js。

Source commit: f065a68c51268c60be941180934462161f89f483.

Full changelog: v0.5.0...v0.6.0