v0.17.3

In short

• Fixed: a reply or forward made by an assistant without a compose window (a draft, or a direct send) could let
  the end of a quoted message run into the text and signature after it. With Thunderbird's default settings the quote
  was already cleaned up before this point; it mattered mostly with an advanced setting changed by hand. Messages
  written in a compose window were not affected.
• The bridge does not change in this release: nothing to update in your MCP clients if their bridge is 0.17.1.
• No call that worked stops working. Updating is recommended, not urgent.

How to update

• Thunderbird add-on: it updates itself. To get this version now: Add-ons and Themes, gear menu, Check for Updates, then restart Thunderbird. For a first installation, see the README (commonpost-mcp-v0.17.3.xpi below).
• MCP bridge: it is installed in your MCP client and is never updated automatically. This release ships the same bridge as v0.17.1: a bridge of version 0.17.1 needs no update.
  • Claude Desktop: download commonpost-mcp-v0.17.1.mcpb below and open it with Claude Desktop; if the file does not open there (Windows), use Settings > Extensions > Advanced settings > Install Extension.
  • Claude Code with the plugin: /plugin marketplace update commonpost (or turn on auto-update for the marketplace in /plugin), then /reload-plugins. The plugin always carries the bridge of the release.
  • Other clients (Claude Code without the plugin, Cursor, VS Code, ...): download mcp-bridge.cjs below and put it in place of your copy, then restart the client or reconnect the server (/mcp in Claude Code). The path of your copy is in the MCP configuration of the client (Claude Code: claude mcp get <server name>).
  • Not sure which bridges you have? The options page of the add-on (section Bridge) lists the bridges that connected, each with its version and "Up to date", "Newer version available" or "Update recommended". Claude Desktop and another client on the same computer are two bridges, updated separately.

The .sigstore.json files are provenance attestations, not something to install.

All changes

Fixed

• A reply or forward built without a compose window (a draft, or a direct send) could let the end of a quoted message
  run into what follows it: a tag, attribute value, comment or <textarea> left open at the very end of the quote
  took in the caller's text or the signature after it, so markup the quote checks never saw could come out as an
  element. The quote is now replaced by Thunderbird's parsed reading of it, which ends where the quote ends, whenever
  markup put after it would not be read as markup of its own. With Thunderbird's default settings the quote of a
  reply or forward is already parsed before it gets here; messages composed in a window were not affected.

Changed

• The Claude Code plugin manifest lists a terms of service link (the MIT license), for the Claude plugin directory.