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What's New in v0.1

The v0.1 beta line was Herald’s first public release series. It established the macOS beta packaging path, made demo mode useful for trying Herald without an inbox, and rapidly tightened the early Timeline, Compose, cleanup, image-preview, MCP, and SSH workflows.

These are the changes most visible to people looking back at the v0.1 beta line. The theme of the release is turning a working terminal mail client into something easier to install, safer to explore, and better prepared for later v0.2-v0.6 feature work.

  • v0.1.0-beta.1 shipped the first macOS beta artifacts, including the Herald TUI, MCP server, SSH server, docs site, release workflow, checksums, and release-asset refresh.
  • v0.1.1-beta.1 added Homebrew tap automation so macOS testers could install release-built binaries from herald-email/homebrew-herald.
  • v0.1.2-beta.1 promoted Gmail IMAP/App Password onboarding, kept Gmail OAuth experimental, and fixed cache database paths so launcher context did not scatter local cache files.
  • v0.1.3-beta.1 rendered email links with OSC 8 labels in supported terminals and clarified that Gmail OAuth was still an experimental onboarding path.
  • v0.1.4-beta.1 added mouse navigation, OSC 8 support docs, and the compose-safe keybinding command layer that kept printable text from being swallowed by global shortcuts.
  • v0.1.4-beta.5 was the broad usability patch: timeline bulk selection, draft workflows, attachment path autocomplete, safer attachment downloads, HTML-preserving replies and forwards, full-screen image previews, read-state cache sync, demo compose sending, and stronger MCP daemon readiness.
  • v0.1.5-beta.1 introduced the canonical herald CLI with mcp and ssh subcommands, context-sensitive shortcut help, shared Markdown-aware previews, Kitty and iTerm2 image rendering work, and refreshed install/command docs.
  • v0.1.6-beta.1 migrated the TUI to Bubble Tea v2, added horizontal timeline reading, fixed reply/draft/cleanup refresh issues, and codified the autopilot evidence gates used to harden later UI work.

The v0.1 line moved quickly, so the patch-level release notes are more useful as a historical trail than as everyday upgrade guidance. These links go to the enriched GitHub release bodies for each immutable tag.

ReleasePublishedPrimary focus
v0.1.0-beta.1April 27, 2026First public macOS beta artifacts and docs site.
v0.1.1-beta.1April 27, 2026Homebrew tap automation.
v0.1.2-beta.1April 27, 2026Gmail IMAP onboarding and cache path fix.
v0.1.3-beta.1April 27, 2026OSC 8 link labels and OAuth experiment labeling.
v0.1.4-beta.1April 28, 2026Mouse navigation and compose-safe key routing.
v0.1.4-beta.5April 29, 2026Timeline, drafts, attachments, previews, and MCP hardening.
v0.1.5-beta.1April 29, 2026Canonical CLI, shortcut help, and image protocol work.
v0.1.6-beta.1May 1, 2026Bubble Tea v2, horizontal reading, and UI evidence gates.

Use a current release for everyday work. To inspect the final historical v0.1 line, check out the immutable tag and run demo mode:

Terminal window
git checkout v0.1.6-beta.1
make build
./bin/herald --demo

The v0.1 tags predate the current Calendar and Gmail API source platform. Treat them as historical beta snapshots, not recommended daily builds.

The v0.2 release line continued the setup, command, and demo hardening work after v0.1. The next docs archive page currently starts at What’s New in v0.4, where the theme system and Compose AI polish became the main user-facing story.