Internal engineering benchmark tests (conducted on an Intel Xeon W-1290P, 64 GB RAM, NVMe storage) revealed measurable improvements:
| Operation | Version 2.9 SP1 (Base) | Version 2.9 SP1 Update 4 | |---|---|---| | Opening a 500-page project | 14.2 seconds | 11.7 seconds (-17.6%) | | Generating a 100-page PDF report | 45 seconds | 38 seconds (-15.5%) | | Sorting/Filtering parts list (50,000 rows) | 2.1 seconds | 1.6 seconds (-23.8%) | | Save time after bulk modification | 3.5 seconds | 2.9 seconds (-17.1%) | | Memory footprint (idle) | 1.2 GB | 980 MB (-18.3%) |
These gains stem primarily from optimized memory management and recompiled x64 assembly instructions.
Based on official EPLAN release notes and user forums, Update 4 specifically resolves:
For whom is this specific version relevant?
For new projects starting today, a more recent version might be recommended. However, for maintaining existing long-term projects (e.g., a 5-year automotive plant design), sticking with Version 29 SP1 Update 4 ensures that there is no database upgrade (which is often irreversible) and no unexpected changes in plotting behavior or device naming conventions.