# 1.17 -> 1.18 ### WorkManager initialization Please refer to [known issues](/known-issues/android/1.17.0.md#workmanager-initialization-error) for SDK 1.17 NOTE: Please remove ImsTripManagerInitializer call as it is removed in 1.18. ### ImsTripManager.configuration Since configuration is now nullable, you need to take null safety measures to call configuration. Here is an example to check if trip manager is enabled. ``` ImsTripManager.configuration?.isEnabled ``` ### deviceId for DsDevice We added a made deviceId for a device object mandatory. So, you will need to pass a value when instantiating a DsDevice object. ### User service userId was a parameter in User object. It is now moved an Object called Account inside the existing User object. In order to access userId, now you need a call as below: ``` user.account?.accountId ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://sdk.ims.tech/migration-notes/android/older-releases/1.17-greater-than-1.18.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.