/**
 * Drawing format version.
 */
export declare enum ACadVersion {
    /**
     * Version not identified.
     */
    Unknown = -1,
    /**
     * Release 1.1
     */
    MC0_0 = 0,
    /**
     * Release 1.2
     */
    AC1_2 = 1,
    /**
     * Release 1.4
     */
    AC1_4 = 2,
    /**
     * Release 2.0
     */
    AC1_50 = 3,
    /**
     * Release 2.10
     */
    AC2_10 = 4,
    /**
     * Release 2.5
     */
    AC1002 = 5,
    /**
     * Release 2.6
     */
    AC1003 = 6,
    /**
     * Release 9
     */
    AC1004 = 7,
    /**
     * Release 10
     */
    AC1006 = 8,
    /**
     * Release 11/12 (LT R1/R2)
     */
    AC1009 = 9,
    /**
     * Release 13 (LT95)
     */
    AC1012 = 19,
    /**
     * Release 14, 14.01 (LT97/LT98)
     */
    AC1014 = 21,
    /**
     * Release 2000/2000i/2002
     */
    AC1015 = 23,
    /**
     * Release 2004/2005/2006
     */
    AC1018 = 25,
    /**
     * Release 2007/2008/2009
     */
    AC1021 = 27,
    /**
     * Release 2010/2011/2012
     */
    AC1024 = 29,
    /**
     * Release 2013/2014/2015/2016/2017
     */
    AC1027 = 31,
    /**
     * Release 2018/2019/2020
     */
    AC1032 = 33
}
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