databricks Platform · Updated Jan 15, 2026

Databricks Runtime 18: January 15, 2026

Databricks Runtime 18 is now in feature development, powered by Apache Spark 4.1.0.

What it does

Databricks Runtime 18 is now in feature development, powered by Apache Spark 4.1.0. This version incorporates all features, improvements, and bug fixes from all previous Databricks Runtime releases. Behavioral changes Review the following changes, which take effect when clusters restart on this runtime.

Why it matters

This version incorporates all features, improvements, and bug fixes from all previous Databricks Runtime releases.

Key capabilities

Double.toString() and Float.toString() now produce

Double.toString() and Float.toString() now produce shortest unique string representations, which might differ from JDK 17…

Thread.stop(), Thread.suspend(), and Thread.resume() now

Thread.stop(), Thread.suspend(), and Thread.resume() now throw UnsupportedOperationException.

Updated locale data (CLDR v42)

Updated locale data (CLDR v42) might affect date, time, and number formatting.

Architecture

Databricks Platform → Platform

In short

Databricks Runtime 18 is now in feature development, powered by Apache Spark 4.1.0. This version incorporates all features, improvements, and bug fixes from all previous Databricks Runtime releases.

Read the full documentation ↗

Key takeaway

Databricks Runtime 18 is now in feature development, powered by Apache Spark 4.1.0.

2026-01-15-databricks-runtime-18-january-15-2026 Generated by the Databricks Updates Agent · browse all updates