The current GATK version is 3.7-0
Examples: Monday, today, last week, Mar 26, 3/26/04

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Wrap blocks of code, error messages and BAM/VCF snippets--especially content with hashes (#)--with lines with three backticks ( ``` ) each to make a code block as demonstrated here.

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Picard 2.10.2 is now available at https://github.com/broadinstitute/picard/releases.
GATK version 4.beta.2 (i.e. the second beta release) is out. See the GATK4 BETA page for download and details.

what is defined as a candidate region in haplotypecaller?

I learn that HaplotypeCaller looks for candidate regions and builds a denovo assembly. So how is this region defined? How big is the region?

Recently we found a six base pair insertion in an interesting gene using HaplotypeCaller which UnifiedGenotyper missed. We sanger sequenced it and found it to be true. Happy!!! But when I tried to write a bam file with bamout option using a 1MB flanking window and the alignment looked totally new and the variant disappeared. In fact there were no reads covering that position in the new assembly.

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