{"id":676201,"date":"2026-01-23T14:07:20","date_gmt":"2026-01-23T13:07:20","guid":{"rendered":"https:\/\/blog.jetbrains.com\/?post_type=kotlin&p=676201"},"modified":"2026-01-27T13:33:14","modified_gmt":"2026-01-27T12:33:14","slug":"exposed-1-0-is-now-available","status":"publish","type":"kotlin","link":"https:\/\/blog.jetbrains.com\/ja\/kotlin\/2026\/01\/exposed-1-0-is-now-available","title":{"rendered":"Exposed 1.0 Is Now Available"},"content":{"rendered":"\n

This is the first major release of Exposed<\/a> \u2013 a huge milestone for both the project and the Exposed team! This release brings many new exciting features, the most requested being R2DBC support, as well as performance enhancements and bug fixes. Exposed 1.0 also introduces a stable API that guarantees no breaking changes until the next major release.<\/p>\n\n\n\n

Get started<\/h2>\n\n\n\n

Can\u2019t wait to start building your next project with Exposed 1.0? Check out the examples with Ktor<\/a> or Spring<\/a> and join the #exposed<\/a> channel on Kotlin Slack if you have any questions or feedback.<\/p>\n\n\n\n

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\n Get Started With Exposed<\/a>\n <\/div>\n<\/div>\n\n\n\n

If you are already using Exposed, check out the Migration Guide<\/a> on how to migrate from version 0.61.0 to 1.0.<\/p>\n\n\n\n

What\u2019s new<\/h2>\n\n\n\n

R2DBC<\/h3>\n\n\n\n

Highly requested by the community, R2DBC<\/a> support has made it into Exposed. This brings support<\/a> for reactive drivers to the Exposed SQL DSL approach.<\/p>\n\n\n\n

val database = R2dbcDatabase.connect(\n    url = \"r2dbc:postgresql:\/\/db:5432\/mydatabase\",\n        databaseConfig = R2dbcDatabaseConfig {\n        defaultMaxAttempts = 1\n        defaultR2dbcIsolationLevel = IsolationLevel.READ_COMMITTED\n\n        connectionFactoryOptions {\n            option(ConnectionFactoryOptions.USER, dbUser)\n        }\n    }\n)<\/pre>\n\n\n\n
Spring Support<\/h2>\n\n\n\n
Spring is heavily used in Kotlin and with Exposed. For 1.0, we will continue to support Spring Boot 3 alongside Spring Boot 4. Exposed brings many quality of life improvements when using Spring with Exposed, such as GraalVM native image support and better transaction management.<\/p>\n\n\n\n
@Component\n@Transactional\nclass UserService {\n    \/\/ Use Exposed dsl without `transaction { }`\n    fun findUserById(id: UserId): User? =\n        UserTable.selectAll().where { UserTable.id eq id.value }\n            .firstOrNull()?.let { row ->\n                User(\n                    id = UserId(row[UserTable.id].value),\n                    name = row[UserTable.name],\n                    age = row[UserTable.age],\n                )\n            }\n}<\/pre>\n\n\n\n
Exposed 1.0: Stable, scalable, and looking forward | Chantal Loncle<\/h2>\n\n\n\n
Chantal Loncle gave an overview of Exposed 1.0, how we got here, and what the future might bring at KotlinConf 2025.<\/p>\n\n\n\n
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