## TL;DR

Upgrade to v9.0.0 or later, which restores them. If you generate your own client from the OpenAPI spec, regenerate from the fixed spec rather than hand-patching the removed paths.

## Steps

1. When association calls break after upgrading hubspot-api-python to v8, dont rewrite your code around the missing endpoints. The v4 association endpoints were dropped from the package by mistake while the API still served them. Upgrade to v9.0.0 or later, which restores them. If you generate your own client from the OpenAPI spec, regenerate from the fixed spec rather than hand-patching the removed paths.

## When to use

You are seeing this: When association calls break after upgrading hubspot-api-python to v8, dont rewrite your code around the missing endpoints. Use this skill when you run into "HubSpot SDK v8 removed the associations v4 endpoints: upgrade to v9".

## When not to use

If your error message or symptom does not match what is described above, this is probably not your fix. Search for your exact error text instead of forcing this one to fit.

## Versions

Versions mentioned in the source: v9.0.0. If you are on something much newer or older, the details may have shifted.

## Why this happens

The original report does not dig into a root cause. It documents the symptom and the fix that resolved it.