5.2.0

This is a minor version upgrade with the following changes:

• Fixes a couple bugs in theta sketch compression (by upgrading the c++ dependency)
• Adds get_PMF and get_CDF to t-digest
• Adds t-digest documentation to pydocs
• Defaults to using the system cmake when available

5.1.1

Patch release:

• Update cibuildwheel version
• Add convenience wheels for python 3.13
• Remove convenience wheels for python 3.8, which has reached end of life

There should be no functional code changes associated with this release.

v5.1.0

This is a minor release version with several new features and one change to wheels:

• Convenience wheels in pypi are now built using numpy 2.x, but should still work if using numpy 1.x
• New sketch: The python library now supports the DataSketches implementation of t-digest
• The tuple sketch supports a .filter() method which applies a predicate to the summaries and returns a compact sketch of items matching the predicate

v5.0.2

This is a patch release that makes a one-line change to enable compatibility with muslinux-based alpine images for Docker.

5.0.1

This is also a patch release that fixes an issue with wheels for Apple Silicon Macs. As a rapid-follow match to a major release, the release notes describing the significant changes are:

• Vastly improved API documentation via sphinx
• More pythonic API:
• copy instead of C++-style copy constructors
• str takes no arguments in all cases
• Moved from pybind11 to nanobind, which also requires C++17 internally
• Added new exact proportional to size sampling sketch, ebpps_sketch
• Fixed slowness with theta intersection
• Fixed incompatibility with Java's serialized empty frequent items sketch
• Removed default Kernel for density sketch (GaussianKernel is still provided)
• Removed extra (largely transparent to users) wrappers around density_sketch and tuple_sketch
• Added NOMINSIZE to nanobind config, increasing performance at the cost of a slightly larger wheel

5.0.0

This is also a major version release with several significant changes:

• Vastly improved API documentation via sphinx
• More pythonic API:
  • __copy__ instead of C++-style copy constructors
  • __str__ takes no arguments in all cases
• Moved from pybind11 to nanobind, which also requires C++17 internally
• Added new exact proportional to size sampling sketch, ebpps_sketch
• Fixed slowness with theta intersection
• Fixed incompatibility with Java's serialized empty frequent items sketch
• Removed default Kernel for density sketch (GaussianKernel is still provided)
• Removed extra (largely transparent to users) wrappers around density_sketch and tuple_sketch
• Added NOMINSIZE to nanobind config, increasing performance at the cost of a slightly larger wheel

Known issue:

• Wheels intended for Apple Silicon Macs are mistakenly compiled for x86_64 architecture (will be fixed in forthcoming 5.0.1)