v0.9.0

• 🔍 Implement Aspiration Windows (#121)
• 🔍 Reuse PV when 'ponder hit' (#127)
• ⚙ Increase max. depth to 64 (#122)
• ⚡ Remove branch from hot path (#120)
• 🐛 Fix bug Utils.InCheck(), which was causing a relevant performance hit (#117)
• 🐛 Fix crash when depth reaches MaxDepth (#118)
• 🐛 Fix incremental hashing bug in null-moves (#124)

Non strength-winning changes:

• Support infinite search in go UCI command (#123)
• 🐛 Fix mate sign in info UCI command (#125)

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Full Changelog: v0.8.1...v0.9.0