Tiledb

Improvements

* Various performance optimizations in the read path. [1689](https://github.com/TileDB-Inc/TileDB/pull/1689) [#1692](https://github.com/TileDB-Inc/TileDB/pull/1692) [#1693](https://github.com/TileDB-Inc/TileDB/pull/1693) [#1694](https://github.com/TileDB-Inc/TileDB/pull/1694) [#1695](https://github.com/TileDB-Inc/TileDB/pull/1695)
* Google Cloud SDK bumped to 1.14. [1687](https://github.com/TileDB-Inc/TileDB/pull/1687), [#1742](https://github.com/TileDB-Inc/TileDB/pull/1742)

Bug fixes

* Fixed error "Error: Out of bounds read to internal chunk buffer of size 65536" that may occur when writing var-sized attributes. [1732](https://github.com/TileDB-Inc/TileDB/pull/1732)
* Fixed error "Error: Chunk read error; chunk unallocated error" that may occur when reading arrays with more than one dimension. [1736](https://github.com/TileDB-Inc/TileDB/pull/1736)
* Fix Catch2 detection of system install [1733](https://github.com/TileDB-Inc/TileDB/pull/1733)
* Use libtiledb-detected certificate path for Google Cloud Storage, for better linux binary/wheel portability. [1741](https://github.com/TileDB-Inc/TileDB/pull/1741)
* Fixed a small memory leak when opening arrays. [1690](https://github.com/TileDB-Inc/TileDB/pull/1690)
* Fixed an overflow in the partioning path that may result in a hang or poor read performance. [1725](https://github.com/TileDB-Inc/TileDB/pull/1725)[#1707](https://github.com/TileDB-Inc/TileDB/pull/1707)
* Fix compilation on gcc 10.1 for blosc [1740](https://github.com/TileDB-Inc/TileDB/pull/1740)
* Fixed a rare hang in the usage of `load_tile_var_sizes`. [1748](https://github.com/TileDB-Inc/TileDB/pull/1748)

Improvements

* Add new config option `vfs.file.posix_permissions`. [1710](https://github.com/TileDB-Inc/TileDB/pull/1710)

Bug fixes

* Return possible env config variables in config iter [1714](https://github.com/TileDB-Inc/TileDB/pull/1714)

Improvements

* Don't include curl's linking to libz, avoids build issue with double libz linkage [1682](https://github.com/TileDB-Inc/TileDB/pull/1682)

Improvements

* Fix typo in GCS cmake file for superbuild [1665](https://github.com/TileDB-Inc/TileDB/pull/1665)
* Don't error on GCS client init failure [1667](https://github.com/TileDB-Inc/TileDB/pull/1667)
* Don't include curl's linking to ssl, avoids build issue on fresh macos 10.14/10.15 installs [1671](https://github.com/TileDB-Inc/TileDB/pull/1671)
* Handle ubuntu's cap'n proto package not providing cmake targets [1659](https://github.com/TileDB-Inc/TileDB/pull/1659)

Bug fixes

* The C++ Attribute::create API now correctly builds from an STL array [1670](https://github.com/TileDB-Inc/TileDB/pull/1670)
* Allow opening arrays with read-only permission on posix filesystems [1676](https://github.com/TileDB-Inc/TileDB/pull/1676)
* Fixed build issue caused by passing std::string to an Aws method [1678](https://github.com/TileDB-Inc/TileDB/pull/1678)

Improvements

* Add robust retries for S3 SLOW_DOWN errors [1651](https://github.com/TileDB-Inc/TileDB/pull/1651)
* Improve GCS build process [1655](https://github.com/TileDB-Inc/TileDB/pull/1655)
* Add generation of pkg-config file [1656](https://github.com/TileDB-Inc/TileDB/pull/1656)
* S3 should use HEADObject for file size [1657](https://github.com/TileDB-Inc/TileDB/pull/1657)
* Improvements to stats [1652](https://github.com/TileDB-Inc/TileDB/pull/1652)
* Add artifacts to releases from CI [1663](https://github.com/TileDB-Inc/TileDB/pull/1663)

Bug fixes

* Remove to unneeded semicolons noticed by the -pedantic flag [1653](https://github.com/TileDB-Inc/TileDB/pull/1653)
* Fix cases were TILEDB_FORCE_ALL_DEPS picked up system builds [1654](https://github.com/TileDB-Inc/TileDB/pull/1654)
* Allow errors to be show in cmake super build [1658](https://github.com/TileDB-Inc/TileDB/pull/1658)
* Properly check vacuum files and limit fragment loading [1661](https://github.com/TileDB-Inc/TileDB/pull/1661)
* Fix edge case where consolidated but unvacuumed array can have coordinates report twice [1662](https://github.com/TileDB-Inc/TileDB/pull/1662)

API additions

* Add c-api tiledb_stats_raw_dump[_str] function for raw stats dump [1660](https://github.com/TileDB-Inc/TileDB/pull/1660)
* Add c++-api Stats::raw_dump function for raw stats dump [1660](https://github.com/TileDB-Inc/TileDB/pull/1660)

Bug fixes
* Fix hang on open array v1.6 [1645](https://github.com/TileDB-Inc/TileDB/pull/1645)

Improvements
* Allow empty values for variable length attributes [1646](https://github.com/TileDB-Inc/TileDB/pull/1646)