Commits queued behind a running commit step share the next step's backend
transaction: each keeps its own step, seq, outbox commit and adoption in
queue order, the metadata is written once. A refusal rolls the group back
and its admitted commits run again alone; series, exports, replays and empty
commits end a group; backend failures while closing are latched; any throw
after COMMIT stops the store with memory at the durable group.
An end-to-end reload suite (a kit app, a worker, a real Chromium page; one test per row of design's reload table).
The kit gains timeouts and base (base bundles' inputs and worker entries mark base). Fixes: a call crossing a failed
or a removal gets the cause, not not_ready; a call sent with an old method index is decoded by the names its consumer
had until the new bound is acked; a page retries a failed script fetch; applyChanges runs one at a time.
A hold unbinding with loading (a restart, a parked swap, a live failure retrying) keeps its calls in flight; each
gets one answer from what it waits on (the instance it runs on, or the gate). Calls sent by the old method names
before the consumer learns of the loading wait at the gate too. failed and removal still reject.
The server drops a page's own chord.* attributes and writes chord.host and the principal hook's result itself; tests
for the hook returning nothing, the NOOP adapter and calls over a link.
The four telemetry gaps (rows on commits, chord.host, microsecond times, a read-only store) and: pages record and
send span batches over their link to the server's ingest object (checked, capped, rate-limited, stamped browser and
with the link's principal); workers send theirs too, so the server is the store's only writer; principalAttributes
lets an app choose what a span records about its principal. The tutorial shows a real page's click traced to the
worker, with the trace viewer.
Chord's telemetry schema; spans for calls, methods, relays, holds, activations, natives, loads, reloads, resolves,
revocations, routines, jobs and HTTP requests; trace carriers on hold and call (bounded, printable ASCII) continued by
relays and workers; events and host-wide metrics; the app kit passes an adapter to its hosts. renderTrace escapes
control characters. Example 62 prints a trace across three hosts.
A call arriving while an attempt activates waits for its outcome (bounded by readyTimeout) instead of failing
not_ready while its client sees live. Fates start in the reverse of the order objects went live, so a pure
dependent of a swapping provider swaps instead of parking.
defineMessages with typed t, t.message/t.render for messages as data, the Translations registry with fallbacks and
conflicts, a locale preference per principal with the device as default and a live switch, useMessages and
scope.messages, formatTime/formatNumber. The tutorial gains a chapter on languages.
self.query(table, q, limit) runs before the object goes live and again in the commit step of every commit that
touched the table, publishing only the diff; a reload swaps the object. The tutorial and 59-chat use it.
The heartbeat no longer counts time the process did not run (a laptop's sleep, a blocked event loop) as silence: after such a pause each open link pings at once and closes only if its peer stays silent for close - ping.
A running worker's lost link is now a stop instead of a failure: worker_link_lost is reported and the held route starts a new worker. A second lost link within a minute of the last recovery still fails the address.
A worker killed by a signal left its lock's socket file, and every later start of its address failed closed on it, retry too. The workers component now removes a lock socket file nobody accepts on before each start and after a child's exit by a signal, in the address's queue. processLock also treats ENOTSOCK as stale instead of retrying until its context ended.
- get, hold and registry on a host that has not loaded throw not_ready at once.
- A registry with contributions and no provider is reported (registry_undeclared) at publication.
- A request waiting unbound is reported once after 5 s (unbound_long; one clock per host), and keeps waiting.
- An invalid plugin name makes load and reload throw before any change.
- A transaction cancelled by the end of its context is reported (transaction_cancelled) besides rejecting.
- Docs: who a reference acts as, no per-link call limit, await what you start in a root or a handler.
src/next is src (the main export), src/next-node is src/node with short subpaths (/http, /workers, /plugins,
/plugins/runtime, /app, /surfaces, /web, /react, /tui, /tui/launcher); the foundations get /json and /watch;
Chord v1 moves to src/old (/old, /old/node) until p2 runs on v2; tests and docs move likewise (test/, docs/,
test/old, docs/old). Durable and env import the foundations from their subpaths.
- Web: base bundles built from the app's entry at start (content-hashed, served
forever), plugin scripts that register themselves and one combined file,
WebScripts/TuiScripts showing the current set, startPage with the connection
loop, in-place plugin reloads and a reload on a new base bundle.
- React bindings: HostProvider, useHold, useWatch, useRegistry, useRefState.
- Terminal: startTerminal, a launcher that signs in with a token, a token file or
device pairing and always runs the app's terminal code in a sandboxed child
process (pipes, empty environment, --permission granting nothing, no SQLite,
a builtin allowlist and a frozen process inside); output filter, confirmed
copy/open/attach actions; startTerminalRuntime and TuiScope inside.
- Themes: the Themes registry, ThemeChoice per principal, CSS variables on the
page, terminal colours by role; CSS modules in plugin builds.
- App kit: startServer gains web and tui; startApp renamed startServer,
exportAddress/importAddress renamed exportData/importData and export no longer
stops the worker; ephemeral sessions end with their client's last link.
- Examples 56-web, 57-tui, 58-themes, 59-chat.
