0.15.1 alpha build 1 - MCPE: Recent & Upcoming PE Updates

Anyone else here received this update? I can't find any information on it anywhere. I assume it's a continuation on the 0.15.0 beta program.

MCPE-14117] 0.17.1 until 1.0.0 alpha/0.16.0B1'2'3 /0.16.1/0.15.9

마인크래프트 PE] 렐름서버열기 체험! 0.15.0, 0.15.1 호환! / 포켓

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MCPE-14117] 0.17.1 until 1.0.0 alpha/0.16.0B1'2'3 /0.16.1/0.15.9

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Download MCPE 0.15.1 Alpha Build 2