---
title: "Slack API API changes, deprecations and deadlines | Harbyn"
description: "Slack API: 0 upcoming deadlines and 13 recorded changes as of 2026-10-25, each with its source."
canonical: "https://harbyn.com/vendors/slack"
last-updated: 2026-10-25
---

# Slack API: API changes and deadlines

Markdown version of <https://harbyn.com/vendors/slack>.

Messaging. 0 upcoming deadlines, 13 recorded changes. Every entry cites the Slack API page we read it from.

## What we read

The Slack API pages and feeds our ingestion visits, politely and on a schedule.

- **Changelog**: <https://docs.slack.dev/changelog/rss.xml>
- **Releases**: <https://api.github.com/repos/slackapi/node-slack-sdk/releases?per_page=20>
- **Changelog**: <https://api.github.com/advisories?affects=@slack/web-api,@slack/bolt,@slack/webhook,slack_sdk,slack-bolt&per_page=20&sort=published&direction=desc>

## What the scanner looks for

How `harbyn scan` recognises Slack API in a repository, on your machine. Nothing leaves it.

- **Packages**: `npm @slack/web-api`, `npm @slack/bolt`, `npm @slack/webhook`, `pypi slack_sdk`, `pypi slack-bolt`
- **API hosts**: `hooks.slack.com`

## Upcoming deadlines

No upcoming Slack API deadline in the feed right now.

## Change history

Newest first, by the date Slack API announced it. This is the archive: past changes are not warnings, and changes we recorded after they took effect are marked as such.

### October 2026

- Oct 22, 2026, Behavior change: [Password-free sign-in is the default for new Slack sandboxes](https://harbyn.com/changes/slack/2026-10-22-release-slack-cli-v4-11-0.md)
- Oct 22, 2026, Feature: [Slack CLI supports features.user\_connections in app manifests](https://docs.slack.dev/changelog/2026/10/22/slack-cli)
- Oct 22, 2026, Behavior change: [Restricted-scopes installation error explains how to resolve the issue](https://harbyn.com/changes/slack/2026-10-22-release-slack-cli-v4-11-0-4.md)
- Oct 22, 2026, Security: [Slack CLI and local development no longer trust compromised eMudhra certificate authorities](https://docs.slack.dev/changelog/2026/10/22/slack-cli)
- Oct 13, 2026, Feature: [Slack CLI v4.10.0 syncs the app manifest on slack create --app](https://docs.slack.dev/changelog/2026/10/13/slack-cli)
- Oct 7, 2026, Feature: [Slack Code channels for agent collaboration](https://docs.slack.dev/changelog/2026/10/07/slack-code-for-devs)
- Oct 2, 2026, Feature: [Slack CLI v4.9.0 supports app-level token rotation in the manifest](https://docs.slack.dev/changelog/2026/10/02/slack-cli)
- Oct 1, 2026, Feature: [Java SDK v1.52.0 adds block, element, and API method support](https://docs.slack.dev/changelog/2026/10/01/java-sdk)
- Oct 1, 2026, Feature: [Python SDK v3.45.0 adds block and Code API support](https://docs.slack.dev/changelog/2026/10/01/py-sdk)

### September 2026

- Sep 30, 2026, Behavior change: [Node Socket Mode v3.1.0 pins WebSocket connections to HTTP/1.1](https://harbyn.com/changes/slack/2026-09-30-release-node-sdk-updates.md)
- Sep 30, 2026, Feature: [Node SDK Types v3.2.0 and Web API v8.2.0 add new blocks and Slack Code methods](https://docs.slack.dev/changelog/2026/09/30/node-sdk)
- Sep 15, 2026, Feature: [Release: Slack CLI v4.8.0](https://docs.slack.dev/changelog/2026/09/15/slack-cli)
- Sep 1, 2026, Notice: [Updated installation requirement for Slack Marketplace apps](https://docs.slack.dev/changelog/2026/09/01/slack-marketplace-install-requirement)