This document is a guide for upgrading ABP v5.3 solutions to ABP v6.0. There is a change in this version that may effect your applications, please read it carefully and apply the necessary changes to your application.
This document is a guide for upgrading ABP v5.3 solutions to ABP v6.0. There is a change in this version that may affect your applications, please read it carefully and apply the necessary changes to your application.
## Added IsActive property
`IsActive` property is added to `IUserData`. This property is set to **true** by default. **Cmskit** and **Blog** modules are effected by this change. You need to add new migration to your existing application if you are using any of these modules. Please see [#11417](https://github.com/abpframework/abp/pull/11417) for more info.
`IsActive` property is added to `IUserData`. This property is set to **true** by default. **Cmskit** and **Blog** modules are affected by this change. You need to add new migration to your existing application if you are using any of these modules. Please see [#11417](https://github.com/abpframework/abp/pull/11417) for more info.
## Default behavior change in MultiTenancyMiddlewareErrorPageBuilder
If you have customized the `MultiTenancyMiddlewareErrorPageBuilder` of `AbpMultiTenancyOptions`, the pipeline now returns **true**to stop the pipeline as default behavior. See [AbpMultiTenancyOptions: Handle inactive and non-existent tenants](https://github.com/abpframework/abp/blob/dev/docs/en/Multi-Tenancy.md#abpmultitenancyoptions-handle-inactive-and-non-existent-tenants) for more info.
If you have customized the `MultiTenancyMiddlewareErrorPageBuilder` of `AbpMultiTenancyOptions`, the pipeline now returns **true** to stop the pipeline as the default behavior. See [AbpMultiTenancyOptions: Handle inactive and non-existent tenants](https://github.com/abpframework/abp/blob/dev/docs/en/Multi-Tenancy.md#abpmultitenancyoptions-handle-inactive-and-non-existent-tenants) for more info.
## Migrating to LeptonX Lite
LeptonX Liite is now being introduced and you can follow the guides below to migrate your existing applications:
LeptonX Lite is now being introduced and you can follow the guides below to migrate your existing applications:
- [Migrating to LeptonX MVC UI](../themes/LeptonXLite/AspNetCore.md)
- [Migrating to LeptonX Angular UI](../themes/LeptonXLite/angular.md)