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+# Changelog
+
+All notable changes to this project are documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [0.1.0] - 2026-07-31
+
+First working version.
+
+### Added
+
+- Persistent background process with a Unix-socket control channel, so a
+  window toggle costs a socket round trip instead of a process start. The
+  control commands (`--toggle`, `--show`, `--hide`, `--ping`, `--quit`) do
+  not import Qt and answer in well under a tenth of a second.
+- Two chat modes. One-shot asks a single question with no context carried
+  over; Chat keeps a resumable multi-turn conversation.
+- Model picker populated at runtime from the router's `/v1/models`, with
+  vision-capable models marked.
+- Streaming replies rendered token by token.
+- Markdown rendering for replies: headings, emphasis, lists, tables, inline
+  code and tinted fenced code blocks, via `QTextDocument` with no markdown
+  dependency. User input is shown literally so attached file contents are
+  never reflowed.
+- Collapsed reasoning. Models with a reasoning budget return their thinking
+  in a separate field; it shows as a one-line summary that expands on click,
+  tracked per reply.
+- File attachment by drag-and-drop or file dialog. Text and code files are
+  inlined into the prompt and truncated to fit the model's context with a
+  warning. Images require a vision model, and dropping one on a text model
+  offers to switch.
+- SQLite history with FTS5 full-text search. Chat sessions reopen and
+  continue with context intact; one-shot entries reopen read-only.
+- Attachment provenance: original path, size, SHA-256, and a thumbnail for
+  images, so a reopened conversation still shows what was sent even if the
+  file has since moved.
+- System tray icon for show/hide/quit.
+- Configuration in `~/.config/llamachat/config.toml`, written with defaults
+  on first run.
+- `presets.ini` parsing for the two things the API does not report: which
+  models have an mmproj file, and each model's context size.
+- Hyprland Lua snippets for autostart, keybind and floating window rules.
+
+### Fixed
+
+- `presets.ini` opens with a bare `version = 1` before any section, which
+  made `configparser` reject the whole file.
+- Sessions sharing a one-second timestamp sorted unpredictably in the
+  history list and in search results.
+- A venv PySide6 bundles almost no Qt plugins, so `QT_QPA_PLATFORMTHEME`
+  found nothing and every window fell back to Fusion, ignoring qt6ct and
+  Kvantum. The system plugin directory is now used when its Qt version
+  matches the bundled one exactly.
+- A reply containing a markdown link to the internal reasoning scheme
+  produced a working toggle, letting model output drive the interface.
+  The scheme is namespaced, forged anchors are rewritten before display,
+  and only `http`, `https` and `mailto` links reach the desktop opener.
+- Venv discovery compared resolved interpreter paths, so a venv created
+  with `--system-site-packages`, whose `bin/python3` symlinks to the system
+  interpreter, was discarded as "already running".
+
+### Security
+
+- Markdown is parsed with the `MarkdownNoHTML` flag, so markup in a reply is
+  displayed rather than interpreted.
+- The control socket is created mode 0600.
+- Search input is tokenised and quoted before reaching FTS5, so punctuation
+  cannot be read as query syntax.
+