Datachain

New Features and Enhancements
* add `isnone()` function by ilongin in https://github.com/iterative/datachain/pull/801
* add support for `parse_options` in `DataChain.from_csv` by skirdey in https://github.com/iterative/datachain/pull/813
* add `File.upload` method to upload files to storage by mattseddon in https://github.com/iterative/datachain/pull/850
* support for constant literals in `DataChain.mutate(...)` by ilongin in https://github.com/iterative/datachain/pull/869

Bug fixes
* handle permission error properly when checking for file by amritghimire in https://github.com/iterative/datachain/pull/856
* reduce stack trace for file system access issue by amritghimire in https://github.com/iterative/datachain/pull/857
* improve CLI help message by amritghimire in https://github.com/iterative/datachain/pull/861

New Contributors
* skirdey made their first contribution in https://github.com/iterative/datachain/pull/813

**Full Changelog**: https://github.com/iterative/datachain/compare/0.8.10...0.8.11

What's Changed
* Second iteration of cli command help by amritghimire in https://github.com/iterative/datachain/pull/826
* Fix list of tuples. Closes 827 by dmpetrov in https://github.com/iterative/datachain/pull/828
* Added full outer join by ilongin in https://github.com/iterative/datachain/pull/822
* memoize usearch.sqlite_path() by skshetry in https://github.com/iterative/datachain/pull/833


**Full Changelog**: https://github.com/iterative/datachain/compare/0.8.9...0.8.10

What's Changed

New Features and Enhancements
* Review help/usage for cli commands by amritghimire in https://github.com/iterative/datachain/pull/802
* file: support exporting files as a symlink by skshetry in https://github.com/iterative/datachain/pull/819

Bug fixes
* file: raise error by skshetry in https://github.com/iterative/datachain/pull/820
* prefetching: remove prefetched item after use in udf by skshetry in https://github.com/iterative/datachain/pull/818
* ReferenceFileSystem: use fs.open instead of fs._open by skshetry in https://github.com/iterative/datachain/pull/823
* README - mistral fix by dmpetrov in https://github.com/iterative/datachain/pull/821

**Full Changelog**: https://github.com/iterative/datachain/compare/0.8.8...0.8.9

What's Changed
* docs(merge): add examples with Func object by shcheklein in https://github.com/iterative/datachain/pull/811
* Import tqdm to support jupyter better by shcheklein in https://github.com/iterative/datachain/pull/812


**Full Changelog**: https://github.com/iterative/datachain/compare/0.8.7...0.8.8

What's Changed
* fix(s3): pass region name down to fs by shcheklein in https://github.com/iterative/datachain/pull/810


**Full Changelog**: https://github.com/iterative/datachain/compare/0.8.6...0.8.7

What's Changed
* fix(client): disable bucket cache if region or endpoint are specified by shcheklein in https://github.com/iterative/datachain/pull/809


**Full Changelog**: https://github.com/iterative/datachain/compare/0.8.5...0.8.6