Hotfix addressing significant startup loading time issues caused by Paradox Mods localization entries and general stability improvements.
Images © Cities: Skylines II via Steam
▲Buffs2
- Paradox ModsFixed a critical issue where mods adding localization strings caused the PDX Mods platform to reinitialize repeatedly, drastically increasing game startup times.
- GeneralResolved a crash that occurred during the save game loading process, improving overall stability.
◆Other changes1
- GeneralReduced log file clutter by removing callstacks from Info and Warning level logs.
subjects affected (2)
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Patch history
- →Hotfix - Patch 1.5.10f1Jun 1, 2026 · 3mo
Hotfix 1.5.10f1 addresses critical saving issues and 'NotSupportedException' errors affecting old save games and custom maps.
- Hotfix - Patch 1.5.5f1Feb 26, 2026 · 6mo
A hotfix focusing on reverting incorrect lighting values, fixing Global Illumination settings, and addressing minor UI and system bugs.
+4→ - Hotfix - Patch Notes 1.5.3f1Dec 10, 2025 · 8mo
Hotfix 1.5.3f1 addresses a specific UI issue regarding mod loading.
+1→ - 1.3.3f1 Patch NotesJun 11, 2025 · 14mo
Version 1.3.3f1 focuses on extensive cargo system fixes, stability improvements, Easy Mode balancing, and the addition of new piers, quays, and bridges.
+5−3→ - Patch Notes for 1.0.11f1Oct 26, 2023 · 34mo
A performance-focused update targeting rendering optimizations, stutter reduction, and critical crash fixes.
+5→
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