I'm seeing a new NAMESPACE issue related to read_block conflict between S4Arrays and DelayedArray in SummarizedExperiment.

library(SummarizedExperiment)

Warning: replacing previous import 'S4Arrays::read_block' by 'DelayedArray::read_block' when loading 'SummarizedExperiment'

# BiocManager::valid() also returns TRUE.
sessionInfo( )

R version 4.3.0 (2023-04-21)
Platform: x86_64-apple-darwin20 (64-bit)
Running under: macOS Ventura 13.3.1

Matrix products: default
BLAS:   /Library/Frameworks/R.framework/Versions/4.3-x86_64/Resources/lib/libRblas.0.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/4.3-x86_64/Resources/lib/libRlapack.dylib;  LAPACK version 3.11.0

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

time zone: America/New_York
tzcode source: internal

attached base packages:
[1] stats4    stats     graphics  grDevices utils     datasets  methods
[8] base

other attached packages:
 [1] SummarizedExperiment_1.30.1 Biobase_2.60.0
 [3] GenomicRanges_1.52.0        GenomeInfoDb_1.36.0
 [5] IRanges_2.34.0              S4Vectors_0.38.1
 [7] BiocGenerics_0.46.0         MatrixGenerics_1.12.0
 [9] matrixStats_0.63.0          AcidDevTools_0.6.6

loaded via a namespace (and not attached):
 [1] zlibbioc_1.46.0         Matrix_1.5-4            lattice_0.21-8
 [4] GenomeInfoDbData_1.2.10 S4Arrays_1.0.4          parallel_4.3.0
 [7] XVector_0.40.0          RCurl_1.98-1.12         bitops_1.0-7
[10] grid_4.3.0              DelayedArray_0.26.2     compiler_4.3.0
[13] tools_4.3.0             crayon_1.5.2

Best, Mike

Hi Michael,

There seems to be a problem with the DelayedArray 0.26.2 binaries for Windows and Mac. Can you try to reinstall the package _from source_ with BiocManager::install("DelayedArray", type="source", force=TRUE)? You will need Xcode for that. Otherwise you could just wait for the DelayedArray 0.26.3 binary to become available (should take about 24-36 hrs).

Best,

H.