0.10.1 — 2026-09-30

Release Notes

Interrupting a turn no longer makes the model refuse your next message,
sessions are saved while a turn runs and come back after a crash, and the
TUI gets a round of polish.

Fixed

• Interrupting a turn made current models refuse to continue. Esc,
  quitting mid-turn, the cost cap and synaps daemon reload/stop folded an
  "ABORT CONTEXT" recap of the model's own partial output into your next
  message, and current models read that as a prompt injection. The
  interrupted turn is now kept as real history: the partial reply, every
  finished tool round, and a labelled partial result for a tool that was
  cut. One short marker follows it, e.g. [Request interrupted by user].
  Nothing already sent is rewritten, so the prompt cache keeps working.
  Sessions saved with a recap are migrated when loaded. (#182, #184)
• Esc a moment after an answer finished no longer marks it interrupted.
  (#184)
• A canceled tool result says what canceled it, e.g. "Canceled (Synaps
  restarted)"; "Canceled by user" only when it was you. (#185)
• Two clients on one session: the second client now shows prompts typed
  on the first, each reply is its own block, a notice arriving mid-reply no
  longer splits it, and "input is owned by client #N" is shown only to the
  client that joined. Attaching mid-turn no longer shows the finished rounds
  twice. (#184, #185)
• Socket clients could see a turn end mid-stream (an internal checkpoint
  reached them as Done). (#184)
• /resume of a session that is live elsewhere is refused instead of taking
  it over. (#184)
• Tools activated with activate_tools expired at the end of the turn; they
  now last the whole session, as documented. (#162)
• Several blocking subagents in one batch ran one after another; they now
  run side by side. (#171)
• A background subagent (subagent_start) showed starting… for its whole
  run once the turn that started it had ended. (#180)
• A subagent whose agent is a file path was labelled with the whole path,
  and its log file could land outside the log directory. (#173)
• An idle TUI redrew at about 60 fps forever; idle CPU is now zero. (#164)
• Settings → Theme transition could not be turned back on. (#165)
• /theme during a turn also printed "can't run while streaming". (#168)
• Tool cards used the default theme's slate panels on every theme. (#167)

Added

• Sessions are saved while a turn runs. The session is saved after
  every round, in the background (a slow disk never delays the turn), and
  the reply being streamed is kept in a small sessions/<id>.turn draft.
  After a crash, kill -9 or power loss, the next --continue, attach or
  /resume brings the partial reply back, followed by [Request interrupted: Synaps stopped unexpectedly]. (#183, #184)
• Claude Opus 5.5 as a native Anthropic model (image reads work). (#163)
• An optional name for inline subagents (subagent, subagent_start),
  shown in the tray, subagent_status/subagent_collect and the log file
  name. (#172)

Changed

• TUI: a neon prompt and a footer after Noodle; frameless Settings,
  Plugins, Models and Help modals, toasts and prompts; running subagents sit
  in a tray on the prompt; the prompt's ❯ breathes while a turn streams
  instead of a spinner; an empty prompt shows only ❯; event cards and
  diffs take the theme's colours. (#166, #169, #170, #174–#178)
• Models picker: every letter searches, ←/→ fold, Ctrl+E opens the catalog,
  Ctrl+F toggles a favourite. (#169)
• The streaming glow is off by default; tui_streaming_glow = on (or
  Settings → Appearance) turns it back on, and a config that already says
  on keeps it. (#179)

Upgrade notes

• synaps rpc and synaps server now take the session lock.
  --continue of a session that is live in another process (a TUI, the
  daemon, another rpc) exits with an error naming the holder, instead of
  two writers overwriting each other's history. Continuing it after the
  other process exits works as before. (#185)
• After upgrading, run synaps daemon reload with no turn running to move
  the daemon to the new binary; clients reconnect on their own. Then
  restart any client still open from 0.10.0: it shows the new interruption
  marker as a message you sent. Sessions saved by 0.10.0 with an interrupted
  turn are converted on load; nothing to do.

Internal

• save_cost_bench: measures a session save on a real disk
  (SYNAPS_SAVE_BENCH_DIR). (#184)
• Test isolation: follow_chain_* tests no longer leak SYNAPS_BASE_DIR
  (the write_config_value CI flake). (#160)

Install synaps 0.10.1

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/HaseebKhalid1507/SynapsCLI/releases/download/v0.10.1/synaps-installer.sh | sh

Download synaps 0.10.1

File	Platform	Checksum
synaps-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
synaps-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
synaps-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
synaps-x86_64-unknown-linux-gnu.tar.gz	x64 Linux	checksum
synaps-x86_64-unknown-linux-musl.tar.gz	x64 MUSL Linux	checksum