Contacts | 4.5.59

In addition to new features, Contacts 4.5.59 also includes several user experience improvements:

Because version 4.5.59 does not contain any modern JavaScript engines or WebView components, it is immune to entire classes of ransomware and browser-based exploits. contacts 4.5.59

The “Find Duplicates” function pegs one CPU core at 100% for hours when handling over 10,000 contacts. Root Cause: A known O(n²) algorithm in version 4.5.59 for pairwise comparison, which is inefficient for large address books. Fix: Export your contacts to CSV, deduplicate using a modern tool (like dupeGuru or a Python script with pandas), then re-import. Do not use the built-in deduplicator. In addition to new features, Contacts 4