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Changelog

1.26

  • Bugfix: Faster TickStore querying for multiple symbols simultaneously
  • Bugfix: TickStore.read now respects allow_secondary=True
  • Bugfix: #147 Add get_info method to ChunkStore
  • Bugfix: Periodically re-cache the library.quota to pick up any changes

1.25 (2016-05-23)

  • Bugfix: Ensure that Tickstore.write doesn't allow out of order messages
  • Bugfix: VersionStore.write now allows writing 'None' as a value

1.24 (2016-05-10)

  • Bugfix: Backwards compatibility reading/writing documents with previous versions of Arctic

1.22 (2016-05-09)

  • Bugfix: #109 Ensure stable sort during Arctic read
  • Feature: New benchmark suite using ASV
  • Bugfix: #129 Fixed an issue where some chunks could get skipped during a multiple-symbol TickStore read
  • Bugfix: #135 Fix issue with different datatype returned from pymongo in python3
  • Feature: #130 New Chunkstore storage type

1.21 (2016-03-08)

  • Bugfix: #106 Fix Pandas Panel storage for panels with different dimensions

1.20 (2016-02-03)

  • Feature: #98 Add initial_image as optional parameter on tickstore write()
  • Bugfix: #100 Write error on end field when writing with pandas dataframes

1.19 (2016-01-29)

  • Feature: Add python 3.3/3.4 support
  • Bugfix: #95 Fix raising NoDataFoundException across multiple low level libraries

1.18 (2016-01-05)

  • Bugfix: #81 Fix broken read of multi-index DataFrame written by old version of Arctic
  • Bugfix: #49 Fix strifying tickstore

1.17 (2015-12-24)

  • Feature: Add timezone suppport to store multi-index dataframes
  • Bugfix: Fixed broken sdist releases

1.16 (2015-12-15)

  • Feature: ArticTransaction now supports non-audited 'transactions': audit=False with ArcticTransaction(Arctic('hostname')['some_library'], 'symbol', audit=False) as at: ... This is useful for batch jobs which read-modify-write and don't want to clash with concurrent writers, and which don't require keeping all versions of a symbol.

1.15 (2015-11-25)

  • Feature: get_info API added to version_store.

1.14 (2015-11-25)

1.12 (2015-11-12)

  • Bugfix: correct version detection for Pandas >= 0.18.
  • Bugfix: retrying connection initialisation in case of an AutoReconnect failure.

1.11 (2015-10-29)

  • Bugfix: Improve performance of saving multi-index Pandas DataFrames by 9x
  • Bugfix: authenticate should propagate non-OperationFailure exceptions (e.g. ConnectionFailure) as this might be indicative of socket failures
  • Bugfix: return 'deleted' state in VersionStore.list_versions() so that callers can pick up on the head version being the delete-sentinel.

1.10 (2015-10-28)

  • Bugfix: VersionStore.read(date_range=...) could do the wrong thing with TimeZones (which aren't yet supported for date_range slicing.).

1.9 (2015-10-06)

  • Bugfix: fix authentication race condition when sharing an Arctic instance between multiple threads.

1.8 (2015-09-29)

  • Bugfix: compatibility with both 3.0 and pre-3.0 MongoDB for querying current authentications

1.7 (2015-09-18)

  • Feature: Add support for reading a subset of a pandas DataFrame in VersionStore.read by passing in an arctic.date.DateRange
  • Bugfix: Reauth against admin if not auth'd against a library a specific library's DB. Sometimes we appear to miss admin DB auths. This is to workaround that until we work out what the issue is.

1.6 (2015-09-16)

  • Feature: Add support for multi-index Bitemporal DataFrame storage. This allows persisting data and changes within the DataFrame making it easier to see how old data has been revised over time.
  • Bugfix: Ensure we call the error logging hook when exceptions occur

1.5 (2015-09-02)

  • Always use the primary cluster node for 'has_symbol()', it's safer

1.4 (2015-08-19)

  • Bugfixes for timezone handling, now ensures use of non-naive datetimes
  • Bugfix for tickstore read missing images

1.3 (2015-08-011)

  • Improvements to command-line control scripts for users and libraries
  • Bugfix for pickling top-level Arctic object

1.2 (2015-06-29)

  • Allow snapshotting a range of versions in the VersionStore, and snapshot all versions by default.

1.1 (2015-06-16)

  • Bugfix for backwards-compatible unpickling of bson-encoded data
  • Added switch for enabling parallel lz4 compression

1.0 (2015-06-14)

  • Initial public release