> For the complete documentation index, see [llms.txt](https://docs.prestd.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.prestd.com/releases/main-since-v2.1.0.md).

# Changes since v2.1.0 (in v2.2.0)

**Released as** [**v2.2.0**](/releases/v2.2.0.md)**.** The commits below were merged after [v2.1.0](/releases/v2.1.0.md) and are included in the v2.2.0 release. Compare: [v2.1.0...v2.2.0](https://github.com/prest/prest/compare/v2.1.0...v2.2.0).

| Commit    | PR                                              | Summary                                                                                                              |
| --------- | ----------------------------------------------- | -------------------------------------------------------------------------------------------------------------------- |
| `441dc3d` | [#990](https://github.com/prest/prest/pull/990) | pREST Studio embedded UI at `/_studio/`                                                                              |
| `8313b87` | [#980](https://github.com/prest/prest/pull/980) | Database-backed custom query storage, `/_QUERIES/registry`, query ACL                                                |
| `35eeedd` | [#988](https://github.com/prest/prest/pull/988) | TimescaleDB E2E certification on the native PostgreSQL adapter                                                       |
| `5fb0290` | [#978](https://github.com/prest/prest/pull/978) | Fully documented [`samples/prest.sample.toml`](https://github.com/prest/prest/blob/v2.2.0/samples/prest.sample.toml) |
| `e8cdcac` | [#979](https://github.com/prest/prest/pull/979) | Postgres / Timescale test images bumped toward Postgres 18                                                           |
| `e158f89` | [#998](https://github.com/prest/prest/pull/998) | Dockerfile / GoReleaser configuration for Studio embed                                                               |

Also on this range: coverage reporting for fork PRs ([#984](https://github.com/prest/prest/pull/984)), README/docs updates ([#986](https://github.com/prest/prest/pull/986)), and a small CI fixup ([#989](https://github.com/prest/prest/pull/989)).

***

## #990 — pREST Studio

Embedded admin and explorer UI at `/_studio/` (enabled by default). Same-origin REST and MCP client; disable with `PREST_STUDIO_ENABLED=false`. See [pREST Studio](/get-started/prest-studio.md) and [v2.2.0](/releases/v2.2.0.md).

***

## #980 — Database-backed custom queries

Adds `queries.storage = "database"` as an alternative to filesystem `.sql` scripts (default remains `filesystem`).

User-facing surface:

* Table `prest_queries` (configurable `schema` / `table`)
* Admin API `/_QUERIES/registry` when `register_enabled = true`
* Query ACL: `queries.restrict`, `[[queries.scripts]]`, `[[queries.users]]`
* Startup migrate/import from filesystem; CLI `prestd migrate up|down queries`

See [Custom Queries](/api-reference/custom-queries.md#database-backed-storage-v220).

***

## #988 — TimescaleDB E2E

Certifies TimescaleDB through the existing PostgreSQL adapter (no separate adapter). Adds `make test-integration-timescaledb`, Compose under `integration/timescaledb/`, and hypertable / catalog caveats.

Still labeled **Compatible with caveats** in docs. See [TimescaleDB](/databases/timescaledb.md) and upstream [DIFFERENCES.md](https://github.com/prest/prest/blob/v2.2.0/integration/timescaledb/DIFFERENCES.md).

***

## #978 — Sample configuration

[`samples/prest.sample.toml`](https://github.com/prest/prest/blob/v2.2.0/samples/prest.sample.toml) documents every accepted key (including `[https]` vs `[pg.ssl]`, `[studio]`, and `[queries]`). Prefer it as the config reference alongside [Configuring pREST](/get-started/configuring-prest.md).

## Related

* [v2.2.0 release notes](/releases/v2.2.0.md)
* [v2.1.0 release notes](/releases/v2.1.0.md)
* [Releases](/releases.md)
* [pREST Studio](/get-started/prest-studio.md)
* [Custom Queries](/api-reference/custom-queries.md)
* [TimescaleDB](/databases/timescaledb.md)