# 4.16.0 ### January 31, 2017 - 4.16 - Performance Improvements and FASTQ Generation Updates * Features: * Significant back-end database changes to support scaling for future growth * Bugs Fixed: * Fixed issue with trash size sum not updating after items were restored or emptied * Fixed issue with being able to delete projects and their samples at the same time, causing issues with emptying trash * Fixed issue with file count not updating on run details page after a files-only delete of the run \###Release 4.16.1 - January 31, 2017 * Bugs Fixed: * Fixed issue with high database CPU usage \###Release 4.16.2 - February 1, 2017 * Bugs Fixed: * Fixed issue with Indexing QC information not appearing after a run \###Release 4.16.3 - February 2, 2017 * Bugs Fixed: * Performance fix for run uploads impacting server responsiveness * FASTQ Generation Updated: * Updated bcl2fastq to 2.18 * Support for Universal Molecular Indicators (UMIs) addition to FASTQ files when used with the SureCell WTA 3' library prep kit * Improved app stability by eliminating several bugs causing rare failures * Fixed an issue causing BaseSpace Sequence Hub Indexing QC Metrics page to display index 1 and index 2 in the same column, rather than in separate columns as expected * Fixed an issue with read numbering in the ConversionStats.xml output file --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.connected.illumina.com/basespace/releases/previous-releases/2017/4.16.0.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.