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).

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

: The introduction of toxic waste packs and the environmental hazards they create. RimWorld v1.4.3517

: 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

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 : Refinements were made to the then-new security

: Significant upgrades to the search bar functionality in various menus, making it easier to find specific items in large stockpiles.

: Core Biotech features that allowed players to engineer custom xenohumans and manage colony families. Core Update Highlights : The introduction of toxic

As part of the broader 1.4 update landscape, this version supported: