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slack.com · Productivity

Slack breaking changes

The breaking changes Slack announced that Okapi tracks: 4 in all.

Already in effect 4

November 12, 2025 POST /api/files.upload stops working Stopped working
September 26, 2024 POST /api/workflows.stepCompleted stops working Stopped working
September 26, 2024 POST /api/workflows.stepFailed stops working Stopped working
September 26, 2024 POST /api/workflows.updateStep stops working Stopped working

Where Okapi reads it

Changelog docs.slack.dev/changelog/
OpenAPI spec raw.githubusercontent.com/slackapi/slack-api-specs/master/web-api/slack_web_openapi_v2.json
Announcement docs.slack.dev/changelog/2023-08-workflow-steps-from-apps-step-back
Announcement docs.slack.dev/reference/methods/files.upload

Know before your API calls break.

Okapi finds the calls a breaking change hits in your code and opens the pull request that fixes them.

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