●Change8

Migrating to Drizzle ORM v1.0.0-beta.9

Version v1.0.0-beta.9 introduces 1 breaking change. This guide details how to update your code.

Released: 1/15/2026

1
Breaking Changes
1
Migration Steps
3
Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

PgColumnpostgres.array()MySQL2 default client (CallbackPool/Pool)

Breaking Changes

●Issue #1

The postgres `.array()` method is no longer chainable for creating multidimensional arrays. To create multidimensional arrays, use string literals for dimensions, e.g., `.array('[][]')` or `.array('[][][]')`.

Migration Steps

  1. 1
    If using multidimensional arrays in PostgreSQL, change chaining syntax like `.array().array()` to using dimension strings like `.array('[][]')`.

Release Summary

This release introduces native Effect SQL driver support and significant type system improvements for PostgreSQL columns. It also updates the `drizzle-kit` loader to `tsx` and switches the default MySQL2 client pool.

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