DM 0.3.0

• Optional ISI sender and recipient addresses persist through message history, delivery, edits, and bundles. Authorization remains tied to canonical IAM accounts.
• Login accepts an SLT without a webhook; configure callbacks afterward with dm webhook URL. dm unhook retains authentication and queued events.
• dm iam --json returns public application discovery; dm login status --json verifies the saved session and reports its actor.
• SILICON_HOME selects the default home directory.

Rust migration

Client::login now accepts (slt, idempotency_key). Remove the old webhook argument. LoginOptions.webhook_url is Option<&Url> and saved Profile.webhook_url is Option<String>. Use LocalRuntime::webhook after login to configure or remove callbacks. Explicit MessageCreate struct literals must include recipient_id or use ..Default::default().

Backend deployment

Apply migration 0015_message_isi_routing.sql through dm-migrate before rolling out API and worker images. It adds nullable routing fields without changing existing account identities or message content. Existing test schemas upgrade through the normal DM environment lifecycle.

Production verification — 2026-09-09

Production rollout completed at 09:49 UTC from source commit 782a28a52b6a15250a9748f4c346b8479bc75c2b (tag v0.3.0).

• Both silicon-dm-client and silicon-dm-cli 0.3.0 are published on crates.io.
• Release CI passed Rust quality, dependency policy, and container smoke checks. All 53 local workspace tests also passed.
• ARM64 runtime image: sha256:b5481e61d16fb1d5528fcce4a7211af6eac8e4d09b7cb0a9c16a3fab2d2b1b33.
• ARM64 bootstrap image: sha256:df05e77cb0b81c750197dc4d11bfffa575d1a71809ff5817deef7a8f7dd356a9.
• Pre-migration RDS snapshot silicon-dm-pre-0-3-0-20260909094006 reached available before migration started.
• Bootstrap task 4470fd00d19b4b858fce7340d96894c9 (definition silicon-dm-bootstrap:4) exited 0. Logs confirmed credential continuity, production migrations, runtime grants, and testing-role configuration.
• Migration 0015 was applied before rolling the runtime. Existing test schemas continue to migrate through the normal environment lifecycle.
• CloudFormation stack silicon-dm-production in us-east-1 reached UPDATE_COMPLETE.
• API and worker task definitions are revision 5, each with one running task, zero pending tasks, and a single COMPLETED deployment. Both running image digests match the runtime digest above.
• The ALB target is healthy. Public /live and /ready returned 204; /api/v1/iam returned 200 with app_id: "tos>dm". The 0.3.0 CLI's iam --json command confirmed the same production response.

The rollout used the deployed CloudFormation template and preserved existing parameters except the two image references. No frontend or browser gateway change was required. Authenticated live messaging was not exercised during this rollout; ISI persistence, authorization boundaries, replay, edits and bundling were verified in the local PostgreSQL integration test.