v6.18.0

Features

• add asyncSignatureUrl method (#1057) (1a05e80)
• add getBucketStat method (#1102) (a63a5a4)
• optimized multipartUpload progress close #1139 (#1141) (12fcfd1)
• the browser needs to set cross domain and expose the x-oss-next-append-position header (#1218) (ab2f4a3)

Bug Fixes

• uploadPart not pass all headers parameters (#1215) (d842a6c)
• 6.x: lock dependencies (#1088) (9b65ef2)
• fix user input header MD5 value being overwritten problem (#1100) (3f26b79)
• remove Invalid Comparison (#1090) (bbb55b8)
• require module exits (#1052) (b176fa8)
• to fix callback customValue (#1126) (e6cdfe5)
• upgrade address from 1.1.2 to 1.2.2 (#1114) (a9b4d03)(#1184) (b113222)
• upgrade is-type-of from 1.2.1 to 1.4.0 (#1204) (39ef9ac)
• upgrade utility from 1.17.0 to 1.18.0 (#1203) (bc05406)