Version Details and Security Vulnerabilities

@rollup/plugin-typescript version 12.1.4 introduces subtle yet potentially impactful changes compared to its predecessor, version 12.1.3. Primarily, the most noticeable difference lies in the dist object, specifically in the unpackedSize attribute, decreasing from 140153 bytes to 138326 bytes. While seemingly minor, this reduction suggests optimizations in the package's overall size, leading to slightly faster installation and potentially reduced disk space usage—a welcome improvement for developers conscious of build times and dependency footprint. Another small change, is the release date that shifted from 2025-06-17 to 2025-06-28.

Beyond these immediately visible alterations, a look at the dependencies, both runtime (dependencies) and development (devDependencies), is key. While the core dependencies remain consistent across both versions, implying no fundamental shifts in how the plugin interacts with Rollup or TypeScript, the versions for all dependencies need to be checked against your specific setup. Upgrading from 12.1.3 to 12.1.4 should be relatively seamless for most users. Developers should always verify the compatibility of these with their existing project setup, especially regarding any potential breaking changes introduced by newer versions of those underlying tools. Check your tslib as well, based on peer dependencies.