# Changelog

> Track new product features, documentation updates, and SDK releases across PromptRails.

Source: https://0.0.0.0:8080/docs/changelog

Notable changes to the PromptRails platform, SDKs, and documentation, in
reverse-chronological order. For SDK release notes, see the
[Python](https://github.com/promptrails/python-sdk/releases),
[JavaScript](https://github.com/promptrails/javascript-sdk/releases), and
[Go](https://github.com/promptrails/go-sdk/releases) changelogs.

<Release date="June 2026">

- **New — Standalone tracing.** Send spans to PromptRails from any application, even one that does not manage its prompts or agents on the platform — use PromptRails as a standalone LLM observability backend. Adds the `traces:write` API key scope, a native batch ingest endpoint (`POST /api/v1/traces/ingest`), and an OpenTelemetry OTLP/HTTP endpoint. See [Tracing](/docs/tracing).
- **New — SDK tracing modules** for [Python](/docs/python-sdk), [JavaScript](/docs/javascript-sdk), and [Go](/docs/go-sdk), with automatic parent/child nesting and framework auto-instrumentation for **LangChain**, **OpenAI**, **Anthropic**, **Google GenAI**, and **OpenTelemetry**.
- **New — More providers and Bedrock (LangRails v0.7).** Expanded the supported LLM provider catalog (including Amazon Bedrock) with provider feature toggles and model-deprecation handling. See [Prompts](/docs/prompts#model-capabilities).
- **Improved — Prompt caching** support and cached-token usage reporting.
- SDKs: Python and JavaScript `v0.7.0`, Go `v0.6.0` (tracing modules).

</Release>

<Release date="May 2026">

- **New — Data Masking.** Detect and mask PII in outbound LLM calls, inputs, and traces, with per-entity controls. See [Data Masking](/docs/data-masking).
- **Improved — Agent Triggers** (formerly Webhook Triggers) now cover six sources: generic webhook, Slack, Telegram, Microsoft Teams, WhatsApp, and schedule. See [Agent Triggers](/docs/agent-triggers).
- **New — Virtual Filesystem.** A per-agent filesystem for reading and writing files across an agent's runs. See [Virtual Filesystem](/docs/virtual-filesystem).
- **New — Evaluations.** A quality-operations cockpit: eval sets, eval runs, LLM-as-judge scoring, and quality gates. See [Evaluations](/docs/evaluations).
- **New — Apps canvas.** Rebuilt the Agent UI app builder on a Retool-style canvas — toolbox, free-placement grid, inspector, data queries, app version history, record storage, and AI-assisted widget creation. See [Agent UI Deployments](/docs/agent-ui-deployments).
- **New — Global Assistant panel and UI MCP.** A workspace information-architecture refresh that puts the PromptRails Assistant in a panel available across the workspace, backed by a UI MCP surface.
- **Improved — Embeddings providers.** Embeddings now fall back across Fireworks, OpenAI, and Gemini.
- SDKs: Python, JavaScript, and Go `v0.4.0` (Agent Triggers + Virtual Filesystem).

</Release>

<Release date="April 2026">

- **New — PromptRails Assistant.** A built-in, AI-powered assistant for managing your workspace — creating and editing agents, prompts, and resources through natural language.
- **New — Gateway service.** An OpenAI-compatible gateway for LLM model reselling.
- **New — Bulk model management.** Export, import, and table-edit LLM models in bulk. See [Prompts](/docs/prompts#model-capabilities).
- **Improved — Integrations catalog** expanded to 29+ providers and 430+ tools, including Twilio, SendGrid, Mailchimp, Intercom, ClickUp, Tavily, Firecrawl, PostHog, Datadog, PagerDuty, and more. See [Integrations](/integrations).
- SDKs: Python, JavaScript, and Go `v0.3.0`.

</Release>

<Release date="March 2026">

- **New — Integration service.** A dedicated integrations layer with 27 providers (168 tools) plus database templates and an integration tool type. See [Integrations](/integrations).
- **New — Workspace Studio.** Multi-tab editing for agents, prompts, runs, and traces, with MCP templates. See [Agents](/docs/agents) and [Prompts](/docs/prompts).
- **New — Media generation.** Image, speech, and video generation across multiple providers, with asset storage. See [Assets and Media](/docs/assets).
- **New — Open-source engine packages.** Internal providers replaced with the open-source LangRails, MediaRails, GuardRails, and MemoryRails packages.
- **New — Agent UI dashboards.** The first multi-page dashboard builder for deploying agent-facing UIs.
- **New — Official SDKs.** First public releases of the [Python](/docs/python-sdk), [JavaScript/TypeScript](/docs/javascript-sdk), and [Go](/docs/go-sdk) SDKs.

</Release>

<Release date="February 2026">

- **PromptRails goes live.** Public launch of the PromptRails platform — agent orchestration, prompt management, and LLM gateway in one place. See the [Quickstart](/docs/quickstart) to get started.

</Release>