Release Notes — v0.6.4

Release Date: 2026-09-08

TaipanStack v0.6.4 is a maintenance release focused on structural code refactoring to reduce nesting and lower cyclomatic complexity in the core and resilience layers.

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🧹 Clean Code, Refactoring & Typing

• Result Validation Extraction: Extracted validation logic into helpers and applied guard clauses in result.py to reduce nesting (PR #1195).
• Circuit Breaker Cyclomatic Complexity: Further reduced cyclomatic complexity in circuit_breaker.py by extracting logic into unified helper methods (PR #1195).

Full Changelog: v0.6.3...v0.6.4