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+# UCSCXenaTools 1.6.0
+
+- Totally 2486 datasets are included in the current list.
+- Single cell hub was found disabled.
+- GDC hub was completely updated. The old GDC hub has been renamed to gdcHubV18.
+
+# UCSCXenaTools 1.5.0
+
+- Bugs fixed.
+- Removed useless action or check config files.
+- Removed the `XenaShiny()` function to reduce the dependencies.
+- Updated XenaData. Only minor datasets change found from previous data release.
+- Hiplot mirror is down, so we removed its usage in documentation (not delete internal code).
+- Added two new queries from xenaPython.
+
+
+# UCSCXenaTools 1.4.8
+
+- Updated to latest Xena dataset list.
+
+# UCSCXenaTools 1.4.7
+
+- 3 datasets were added into `XenaData`.
+
+```r
+[1] "TCGA_survival_data_2.txt"                                  
+[2] "clinical_CellLinePolyA_21.06_2021-06-15.tsv"               
+[3] "CellLinePolyA_21.06_hugo_log2tpm_58581genes_2021-06-15.tsv"
+```
+
+- Added support for gene symbol checking and data cache in `fetch()`.
+
+# UCSCXenaTools 1.4.6
+
+- Added code to check hiplot server status.
+- Fixed check warnings to follow CRAN policy (#36).
+
+# UCSCXenaTools 1.4.5
+
+- Fixed the download bug for pan-cancer data hub due to unvalid URL. `url_encode()`
+is added internally to transform reserved characters (`/` is kept).
+- Fixed the download bug because UCSCXenaShiny mutate the result of `XenaQuery()`
+and thus change the column number. This bug will not affect XenaTools itself.
+
+# UCSCXenaTools 1.4.4
+
+- Fixed the download bug because UCSCXenaShiny mutate the result of `XenaQuery()`
+and thus change the column order. This bug will not affect XenaTools itself.
+
+# UCSCXenaTools 1.4.3
+
+- Implemented using hiplot for `fetch()` functions.
+
+# UCSCXenaTools 1.4.1 (1.4.2)
+
+- Removed unpublished Xena hub TDI.
+
+# UCSCXenaTools 1.4.0
+
+- Supported downloading data from Hiplot mirror site (`https://xena.hiplot.com.cn/`).
+
+# UCSCXenaTools 1.3.6
+
+- Fixed a bug about try times for data download. 
+- Make sure a message instead of an error will be returned if download process failed.
+
+# UCSCXenaTools 1.3.5
+
+- Added TDI data Hub containing 9 new datasets.
+
+# UCSCXenaTools 1.3.4
+
+* Updated UCSC Xena datasets, now 1670 datasets available.
+
+# UCSCXenaTools 1.3.3
+
+* Added `fetch_sparse_values()` function.
+* Updated treehouse URL.
+* Added treehouse datasets.
+
+# UCSCXenaTools 1.3.2
+
+* Fixed bug about an error happened when querying mutation data.
+* Dropped "Treehouse" data hub.
+* Updated code to update Xena hub datasets.
+
+# UCSCXenaTools 1.3.1
+
+* Added `max_try` option in query and download functions, so they can handle internet connection issue better
+
+# UCSCXenaTools 1.3.0
+
+* Added a new data hub: PCAWG Xena Hub (#24). 
+* Added a new data hub: Kids First Xena Hub (#24).
+* Updated data update function more robustly.