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roji merged 1 commit into from
Nov 15, 2024
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EF Core 9 What's New - Add missing closing parenthesis #4881

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2 changes: 1 addition & 1 deletion entity-framework/core/what-is-new/ef-core-9.0/whatsnew.md
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Expand Up @@ -1086,7 +1086,7 @@ The above were only some of the more important query improvements in EF9; see [t

### Protection against concurrent migrations

EF9 introduces a locking mechanism to protect against multiple migration executions happening simultaneously, as that could leave the database in a corrupted state. This doesn't happen when migrations are deployed to the production environment using [recommended methods](/ef/core/managing-schemas/migrations/applying#sql-scripts), but can happen if migrations are applied at runtime using the [`DbContext.Database.Migrate()`](/dotnet/api/microsoft.entityframeworkcore.relationaldatabasefacadeextensions.migrate) method. We recommend applying migrations at deployment, rather than as part of application startup, but that can result in more complicated application architectures (e.g. [when using .NET Aspire projects](/dotnet/aspire/database/ef-core-migrations).
EF9 introduces a locking mechanism to protect against multiple migration executions happening simultaneously, as that could leave the database in a corrupted state. This doesn't happen when migrations are deployed to the production environment using [recommended methods](/ef/core/managing-schemas/migrations/applying#sql-scripts), but can happen if migrations are applied at runtime using the [`DbContext.Database.Migrate()`](/dotnet/api/microsoft.entityframeworkcore.relationaldatabasefacadeextensions.migrate) method. We recommend applying migrations at deployment, rather than as part of application startup, but that can result in more complicated application architectures (e.g. [when using .NET Aspire projects](/dotnet/aspire/database/ef-core-migrations)).

> [!NOTE]
> If you are using Sqlite database, see [potential issues associated with this feature](/ef/core/providers/sqlite/limitations#concurrent-migrations-protection).
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