IJCAI-ECAI 2026: Decision Notification and ChairingTool Status Thread [D]

Creating a discussion thread for IJCAI-ECAI 2026 final decision notifications. The official paper notification date is April 29, 2026 AoE, so decisions may appear at different local times depending on the ChairingTool rollout. I could not find official 2026 statistics on the number of desk rejects, Phase 1 summary rejects, or papers moved to Phase 2. For estimating the final acceptance rate, I think the latest IJCAI years are relevant than older IJCAI-ECAI data.