20.2.4 (October 04, 2021) Bug-fix release in the 20.2.x LTS series. This release includes some fixes to minor bugs, and includes enhancements to allow the user to specify a different slice-timing-correction (STC) target. Each BOLD series will contain ``SliceTimingCorrected`` metadata to indicate whether STC was performed. If performed, the ``StartTime`` metadata field will be set to indicate the onset time of the BOLD series. * FIX: Avoid unnecessary connections based on branching logic (#2508) * FIX: Permit missing TR to show PyBIDS error at workflow construction time (#2513) * [BACKPORT] FIX: Catch FreeSurfer error related to FIPS being enabled (#2490) * ENH: Use ``BIDSLayoutIndexer`` and do not index unnecessary modalities (#2494) * [BACKPORT] ENH: Slice-timing correction improvements (#2565)