## 0.3.4 (2026-02-24)

- **Breaking** When using `Phantom.Plug`, pass the `conn` to the router connect 
  callback instead of a map with params and headers keys. Upgrade and make this 
  adjustment in your connect callback: 

  ```elixir
  # Before
  def connect(session, context) do
    %{params: params, headers: headers} = context
    # ...
  end

  # After
  def connect(session, conn) do
    %{query_params: params, req_headers: headers} = conn
    # ...
  end
  ```

## 0.3.3 (2026-02-22)

- Fixup Cache key mismatch
- Fixup updating state in async returns
- Fixup running without `phoenix_pubsub`

## 0.3.2 (2025-07-04)

- Fix error message referring to wrong arity.
- Allow nil origin when Plug options is set to `origins: :all`.
- Better error handling when `Phantom.Tracker` is not in the supervision tree. Phantom.MCP will now emit a Logger warning when Phantom.Tracker can be used, but is not in the supervision tree.
- Fix terminate bug introduced in 0.3.1

## 0.3.1 (2025-07-03)

- Add `[:phantom, :plug, :request, :terminate]` telemetry event.
- Improve docs

## 0.3.0 (2025-06-29)

- Move logging functions from `Phantom.Session` into `Phantom.ClientLogger`.
- Rename `Phantom.Tracker` functions to be clearer and more straightforward.
- Consolidate distributed logic into `Phantom.Tracker` such as PubSub topics.
- Add ability to add tools, prompts, resources in runtime easily. You can call
  `Phantom.Cache.add_tool(router_module, tool_spec)`. The spec can be built with
  `Phantom.Tool.build/1`, the function takes a very similar shape to the corresponding macro from `Phantom.MCP.Router`. This will also trigger notifications to clients of tool or prompt list updates.
- Handle paginatin for 100+ tools and prompts.
- Change `connect/2` callback to receive request headers and query params from the Plug adapter. The signature is now `%{headers: list({header, value}), params: map()}` where before it was just `list({header, value})`.
- `Phantom.Tool.build`, `Phantom.Prompt.build` and `Phantom.ResourceTemplate.build` now do more and the `Phantom.Router` macros do less. This is so runtime can have a consistent experience with compiled declarations. For example, you may `Phantom.ResourceTemplate.build(...)` with the same arguments as you would with the router macros, and then call `Phantom.Cache.add_resource_template(...)` and have the same affect as using the `resource ...` macro in a `Phantom.Router` router.
- Fixed building tool annontations.
- Fixed resource subscription response and implemented unsubscribe method.
- Improve documentation

## 0.2.3 (2025-06-24)

- Fix the `initialize` request status code and headers. In 0.2.2 it worked
with mcp-inspector but not with Claude Desktop or Zed. Now it works with all.

## 0.2.2 (2025-06-22)

- Fix the `initialize` request. It should have kept the SSE stream open.
- Fix bugs

## 0.2.1 (2025-06-21)

- Fix default `list_resources/2` callback and default implementation.

## 0.2.0 (2025-06-17)

Phantom MCP released!