# Mouse CTX-HPF datasets before the update

**URL:** <https://community.brain-map.org/t/mouse-ctx-hpf-datasets-before-the-update/1612>\
**Category:** How To\
**Tags:** atlas-mouse-brain-adult, analysis, how-to\
**Created:** [April 26, 2022, 8:47am UTC](https://community.brain-map.org/t/mouse-ctx-hpf-datasets-before-the-update/1612 "2022-04-26T08:47:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![aramisho](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@aramisho](https://community.brain-map.org/u/aramisho)\
**Post date:** [April 26, 2022, 8:47am UTC](https://community.brain-map.org/t/mouse-ctx-hpf-datasets-before-the-update/1612/1 "2022-04-26T08:47:33Z")

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hello,  
I am processing the WHOLE CORTEX & HIPPOCAMPUS database - 10X GENOMICS (2020) WITH 10X-SMART-SEQ TAXONOMY (2021):  
[https://portal.brain-map.org/atlases-and-data/rnaseq/mouse-whole-cortex-and-hippocampus-10x](https://portal.brain-map.org/atlases-and-data/rnaseq/mouse-whole-cortex-and-hippocampus-10x)

And I noticed that there were changes in the data As of 10/21/2021 - can I access the metadata file and the raw data fie before the update ?  
How can I access previous files?  
also , I have analyzed the old files and I am interested in updating my analyses to match the updated files, how best to approach this ?  
Thanks

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**Author:** ![cvanv](https://avatars.discourse-cdn.com/v4/letter/c/ce73a5/32.png) [@cvanv](https://community.brain-map.org/u/cvanv)\
**Post date:** [April 27, 2022, 12:27am UTC](https://community.brain-map.org/t/mouse-ctx-hpf-datasets-before-the-update/1612/2 "2022-04-27T00:27:29Z")

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Hi,

We have updated the Transcriptomics Explorer now reflects a more recent taxonomy that was generated using both the SMART-seq and 10x data and [was published in Cell by Yao et al](https://www.sciencedirect.com/science/article/abs/pii/S0092867421005018?dgcid=rss_sd_all). The majority of the cells is the same between the 2 versions but the cell type assignment (metadata) has been updated in the current version. The sample\_id in the metadata file should allow you to link your previous analysis to the current files.  
As for access to the previous files, I don’t think that those are still available through the website and I would urge you to use the updated version to be aligned with the published data.

Best,  
Cindy