This is a security-focused release with fixes for [CVE-2020-15234](https://github.com/ory/fosite/security/advisories/GHSA-grfp-q2mm-hfp6), [CVE-2020-15223](https://github.com/ory/fosite/security/advisories/GHSA-7mqr-2v3q-v2wm), [CVE-2020-15233](https://github.com/ory/fosite/security/advisories/GHSA-rfq3-w54c-f9q5). Additionally, several system dependencies (e.g. Golang) have been upgraded. A few things have changed as part of these patches: - OAuth 2.0 Redirection URL error parameters `error_hint`, `error_debug` have been deprecated and are now part of `error_description`. The parameters are still included for compatibility reasons but will be removed in a future release. - OAuth 2.0 Error `revocation_client_mismatch` was not standardized and has been removed. Instead, you will now receive `unauthorized_client` with a description explaining why the flow failed. Additionally, the TypeScript SDK generator has changed from OpenAPI's `typescript-node` to `typescript-axios` making the SDK compatible with both browser as well as node environments, which was not the case previously. Please be aware that some of the SDK's API signatures - especially responses - have changed and check your TypeScript output for instructions on upgrading. You may still use an older version of the SDK as none of ORY Hydra's HTTP APIs have changed. Due to several complex CI issues and regressions, build versions v1.8.0 - v1.8.4 failed. v1.8.5 the first and only stable release in the current 1.8.x branch. New features have been added and bugs have been closed. No migrations are required when applying this release. Please check the list below for an in-depth overview.