Sync upstream 4.30 (next wave after the 4.29 cut)

Status

0.4.29 cut in flight — PR #134 is the completion train for the 4.29 wave. This issue tracks the NEXT wave: upstream tagged chat@4.30.0 on 2026-06-01 (release commit a5b118f).

What's between chat@4.29.0 and chat@4.30.0

~21 commits touching packages/; 13 substantive after excluding docs/release bookkeeping (#575, #566, #568, #517, #562, #560, #557, a5b118f). Sizes are upstream packages/-only diffstats.

Slack low-level primitives wave (the headline — ~4,800 LOC across 6 commits)

A new public API layer of importable subpaths under chat/slack/*:

Webhook primitives subpath (feat(slack): add webhook primitives subpath vercel/chat#538) — 12 files, +1,318. Verification/parsing primitives extracted for standalone use.
Format primitives subpath (feat(slack): add format primitives subpath vercel/chat#547) — +302.
API primitives subpath (feat(slack): add api primitives subpath vercel/chat#548) — +796.
Block Kit helpers (feat(slack): expose block kit helpers vercel/chat#555) — +1,098.
Provider helper sharing refactor (refactor(slack): share provider helpers vercel/chat#556) — +13/−44 (depends on #467's installation provider, landing in 0.4.29).
Low-level interaction helpers (feat(slack): add low-level interaction helpers vercel/chat#559) — 11 files, +1,300/−475.

Python design question (resolve before porting): mirror as chat_sdk.slack_primitives / chat_sdk.adapters.slack.{webhook,format,api,blockkit} submodule re-exports? Much of the underlying logic already exists inside adapters/slack/ — this wave is largely re-exporting it as stable public API, so the port may be mostly module re-organization + tests, not new logic.

New adapter

Twilio adapter — SMS, MMS, voice helpers (feat(twilio): add sms, mms, and voice helpers vercel/chat#558) — 30 files, +2,686. Brand-new platform package (@chat-adapter/twilio). Similar undertaking to the Messenger port (design issue → 2 PRs: scaffolding, then adapter). Suggest a dedicated design issue mirroring Design: Messenger (Meta) adapter port (vercel/chat#461) #110.

Adapter features

Telegram native DM draft streaming with segmented stream results (feat(telegram): add native DM draft streaming with segmented stream results vercel/chat#340) — 7 files, +1,190/−95. Telegram's sendMessageDraft UX; interacts with our MarkdownV2 safety-trim helpers from 0.4.27.
WhatsApp typing indicator (feat(whatsapp-adapter): Add typing indicator support vercel/chat#320) — 4 files, +187/−17. Small.

Fixes

Slack: resolve reaction user display names (fix(slack): resolve reaction user display names vercel/chat#523) — +72/−6.
Slack: pass token through native stream stop (fix(slack): pass token through native stream stop vercel/chat#573) — +92/−27. Touches the multi-workspace token plumbing from feat(slack): dynamic bot_token resolver and custom webhook_verifier (vercel/chat#421) #87/#467.
gchat: collapse redundant autolink formatting for email links (fix(gchat): collapse redundant autolink formatting for email links vercel/chat#553) — +52. Interacts with our documented <url|text> round-trip divergences — review those rows when porting.
Slack: return uploaded file ids from postMessage (fix(slack): return uploaded file ids from postMessage vercel/chat#574) — already shipped on the Python side as 0.4.27.1 / PR fix(slack): surface files_upload_v2 confirmation in SentMessage.raw #117 (upstream adopted our fix; Slack postMessage discards uploadFiles() confirmation (inconsistent with discord/telegram) vercel/chat#564 convergence). Port task is only: align any wire-shape differences and downgrade/remove the divergence bookkeeping for the upload-confirmation fix in CHANGELOG/docs on sync.

Carried over from 0.4.29

Teams adapter migration to microsoft-teams-apps (Migrate Teams adapter to microsoft-teams-apps (official MS Python SDK) #93) — explicitly deferred out of the 4.29 wave (see the Known Non-Parity row added in PR release: 0.4.29 completion train — stranded-PR recovery + remaining 4.29 ports + cut #134). Prereq (3.12 floor, build(python): bump Python floor from 3.10 to 3.12 #111) already shipped. Headline candidate for this cycle alongside the Slack primitives.
GitHub octokit / Linear linear_client getters — documented as not-exposed in 0.4.29 (no Python SDK object to expose). Revisit only with an SDK adoption decision (githubkit?); otherwise the rows stand.

Acceptance criteria

UPSTREAM_PARITY = "4.30.0"
lint.yml re-pinned to chat@4.30.0; strict fidelity green at the new pin
All items above ported or documented as deferred in docs/UPSTREAM_SYNC.md
Version 0.4.30 cut with consolidated CHANGELOG

References

Prior wave tracking: Sync upstream 4.28 + 4.29 (next sync after 4.27 wave lands) #98 (closed), completion train PR release: 0.4.29 completion train — stranded-PR recovery + remaining 4.29 ports + cut #134
Messenger design-issue template to mirror for Twilio: Design: Messenger (Meta) adapter port (vercel/chat#461) #110
Upstream compare: git log chat@4.29.0..chat@4.30.0 -- packages/

🔗 Related PRs

#48 - fix: adapter hygiene — Slack stream await, Teams divider, public worker APIs [merged]
#72 - ci(fidelity): ratchet-down baseline + wire into lint.yml [merged]
#83 - sync: upstream v4.27.0 (alpha 1) [merged]
#89 - fix(adapters): bug-fix sweep from upstream 4.27.0 (slack/discord/telegram) [merged]
#106 - release: 0.4.27 — synced to upstream vercel/chat@4.27.0 [merged]

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release: 0.4.29 — version cut, CHANGELOG consolidation, fidelity re-p…

release: 0.4.29 completion train — stranded-PR recovery + remaining 4…

Completed in 0.4.30 (released 2026-06-19) — new Twilio adapter, Teams adapter migration to the official SDK, Telegram native streaming, Slack primitives subpaths. See the 0.4.30 CHANGELOG.

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Sync upstream 4.30 (next wave after the 4.29 cut) #135

Status

What's between chat@4.29.0 and chat@4.30.0

Slack low-level primitives wave (the headline — ~4,800 LOC across 6 commits)

New adapter

Adapter features

Fixes

Carried over from 0.4.29

Acceptance criteria

References

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Assignees

Labels

Type

Projects

Milestone

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Development

Sync upstream 4.30 (next wave after the 4.29 cut) #135

Description

Status

What's between chat@4.29.0 and chat@4.30.0

Slack low-level primitives wave (the headline — ~4,800 LOC across 6 commits)

New adapter

Adapter features

Fixes

Carried over from 0.4.29

Acceptance criteria

References

Activity

coderabbitai commented on Jun 12, 2026

patrick-chinchill commented on Jun 21, 2026

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