Rimworld V1.4.3517 -

was a critical hotfix update released during the active development cycle of the Biotech DLC and the 1.4 base game update. While it didn't introduce massive new features like the primary 1.4 patch, it focused on significant stability improvements and "quality of life" (QoL) refinements. Core Update Highlights

: This version improved game stability, specifically targeting performance issues that arose with the new pollution and tox mechanics introduced in the Biotech expansion.

As part of the broader 1.4 update landscape, this version supported: RimWorld v1.4.3517

: Refinements were made to the then-new security buildings, such as the Foam Turret (which suppresses fires) and the Rocketswarm Launcher (effective against large groups of unarmored enemies).

: Core Biotech features that allowed players to engineer custom xenohumans and manage colony families. was a critical hotfix update released during the

: The introduction of toxic waste packs and the environmental hazards they create.

For players still running this specific version, it's generally recommended to update to the latest stable release (currently in the 1.5+ range) to benefit from even more significant performance overhauls and new content. Vanilla Apparel Expanded - Steam Workshop As part of the broader 1

: 1.4.3517 addressed several underlying issues in the C# and XML codebases to help modders keep their content compatible with the evolving 1.4 framework. Notable Features in the 1.4 Era