VCF version requirement added

statgen · Jan 19, 2023 · be712d5 · be712d5
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commit be712d5
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diff --git a/docs/prepare-your-data.md b/docs/prepare-your-data.md
@@ -5,6 +5,7 @@ Michigan Imputation Server accepts VCF files compressed with [bgzip](http://samt
 - Create a separate vcf.gz file for each chromosome.
 - Variations must be sorted by genomic position.
 - GRCh37 or GRCh38 coordinates are required.
+- VCF files need to be version 4.2 (or lower)
 
 !!! note
     Several \*.vcf.gz files can be uploaded at once.