Month: 2026-01 — mit-pdos/perennial Key features delivered: Introduced WP Verification Tactics: wp_if_join, a tactic that consolidates both branches of an if-statement into a single assertion and splits the proof into three subgoals to verify both branches and the remainder. Major bugs fixed: No major bugs reported this month. Overall impact and accomplishments: Enhances proof automation and reliability for conditional logic within the verification framework, enabling more scalable and faster formal verifications. The change lays groundwork for broader adoption of automated tactics across conditional constructs, improving development velocity and confidence in correctness. Technologies/skills demonstrated: Formal-method tactic design, decomposition of proofs into subgoals, proof automation within a verification framework, documentation and usage documentation, cross-repo collaboration.