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Change Log (Release Notes)

All notable changes to this project will be documented in this file (CHANGELOG.md). This project adheres to Semantic Versioning (or at least we try). Contributors to this file, please follow the guidelines on keepachangelog.com. Note that each version (or "release") is the name of a Git tag of a particular commit, so the associated date and time are the date and time of that commit (as reported by GitHub), not the "Uploaded on" date listed on PyPI (which may differ). For reference, the possible headings are:

  • Added for new features.
  • Changed for changes in existing functionality.
  • Deprecated for once-stable features removed in upcoming releases.
  • Removed for deprecated features removed in this release.
  • Fixed for any bug fixes.
  • Security to invite users to upgrade in case of vulnerabilities.
  • External Contributors to list contributors outside of BigchainDB GmbH.
  • Notes

[0.6.0] - 2016-09-01

Tag name: v0.6.0 = commit: committed:

Added

  • Support for multiple operations in the ChangeFeed class: Pull Request #569
  • Instructions, templates and code for deploying a starter node on AWS using Terraform and Ansible: Pull Requests #572, #589, #600, #605, #610
  • Check that the majority of votes on a block agree on the previous block. If they don't, consider the block invalid. Pull Request #565

Changed

  • Set RethinkDB read-mode='majority' everywhere: Pull Request #497
  • Ported election logic and voting logic to the new pipeline architecture: Pull Requests #510 and #515
  • Moved the transaction (model) version inside the transaction (in the transaction data model): Pull Request #518
  • Changed how the BigchainDB config file (JSON) gets written so it's easier for humans to read: Pull Request #522
  • Improved and expanded the GET/POST endpoints for transactions (in the HTTP API): Pull Request #563
  • Changed the AWS cluster deployment scripts so that the deployer now generates their keypair locally, rather than having Amazon do it: Pull Request #567
  • When a transaction is retrieved by get_transaction, a validity field is added with a value one of valid, undecided, or backlog: Pull Request #574
  • Renamed current_owners and new_owners (in the data models) to owners_before and owners_after, respectively (i.e. before/after the transaction): Pull Request #578
  • Use flask_restful and class-based views for realizing the HTTP API: Pull Request #588

Fixed

  • Fixed the confusing error message when there was a syntax error in the BigchainDB config file: Pull Request #531
  • Fixed write_transaction so it no longer has the side effect of adding assignee to a transaction that is being processed: Pull Request #606

External Contributors

Notes

  • Several additions and changes to the documentation, e.g. Pull Requests #523, #532, #537, #539, #610, and more

[0.5.1] - 2016-07-29

Tag name: v0.5.1 = commit: ff042b5954abe48c7264d43128d52584eab2a806 committed: Jul 29, 2016, 2:38 PM GMT+2

Added

  • New third table, the 'votes' table: Pull Request #379
  • Added get_tx_by_payload_uuid() including index: Pull Request #411
  • Ability to deploy a test cluster on AWS using Amazon Elastic Block Store (EBS) for storage: Pull Request #469
  • Ability to add different-size payloads to transactions when filling the backlog for benchmarking: Pull Request #273

Changed

  • Votes are no longer appended to the blocks inside the 'bigchain' table. They're now written to their own table, the 'votes' table: Pull Request #379
  • Refactored how blocks get constructed using the new approach to doing multiprocessing, using the multipipes package: Pull Request #484
  • Changed all queries to use read_mode='majority': Pull Request #497
  • Revised how base software gets deployed on AWS instances: Pull Request #478
  • Refactored db.utils.init(): Pull Request #471

External Contributors

Notes

[0.5.0] - 2016-07-04

Tag name: v0.5.0 = commit: 38329531304952128b48f2e5603db5fa08069c26 committed: July 4, 2016, 1:07 PM GMT+2

Added

  • New bigchaindb set-replicas subcommand: Pull Request #392
  • Informative JSON message when one makes a request to the root endpoint of the HTTP client-server API: Pull Request #367
  • Return HTTP response code 404 when a transaction is not found: Pull Request #369

Changed

  • Changed the order in which configuration settings get their values. If a setting is set by an environment variable, then that value will be the value, regardless of whether another value is set in a local config file. Also added a method to programattically update the config settings. Pull Request #395
  • Changed the definition of util.sign_tx(). It now has a third, optional argument: a Bigchain instance. Pull Request #410

Notes

[0.4.2] - 2016-06-15

Tag name: v0.4.2 = commit: 7ce6c3980cf70437d7ce716a67f069afa8ecb79e committed: June 15, 2016, 1:42 PM GMT+2

Added

Changed

  • Round timestamps to a precision of one second, and replace payload hash with payload UUID in transactions: Pull Request #384
  • Updated cryptoconditions API usage: Pull Request #373

[0.4.1] - 2016-06-13

Tag name: v0.4.1 = commit: 9c4aa987bcbc294b6a5c3069e6c45a7ed77a4068 committed: June 13, 2016, 9:52 AM GMT+2

Added

Changed

  • Use inverted threshold condition instead of negative weights for escrow: Pull Request #355

Fixed

Notes

[0.4.0] - 2016-05-27

Tag name: v0.4.0 = commit: a89399c4f9fcdf82df73e0d8191af9e539d8d081 committed: May 27, 2016, 1:42 PM GMT+2

Added

  • Support for escrow (possible because of two other new things: cryptoconditions with inverters, and a timeout condition): Pull Request #329
  • Caching of calls to load_consensus_plugin(), using @lru_cache. This speeds up the instantiation of Bigchain objects and greatly improves overall performance. Pull Request #271
  • New Dockerfile-dev Docker file to make it easier for developers to develop BigchainDB with Docker. One can run all unit tests with Docker again. Pull Request #313
  • Transactions in invalid blocks are copied to the backlog: Pull Request #221.
  • Queries to the bigchain table now ignore invalid blocks: Pull Request #324
  • Use secondary index on get_transaction: Pull Request #324
  • New bigchaindb command to set the number of RethinkDB shards (in both tables): Pull Request #258
  • Better handling of an outdated setuptools: Pull Request #279

Changed

Fixed

Notes

You can now see a big-picture view of all BigchainDB repositories on a waffle.io board.

[0.3.0] - 2016-05-03

Tag name: v0.3.0 = commit: a97c54e82be954a1411e5bfe0f09a9c631309f1e committed: May 3, 2016, 11:52 AM GMT+2

Added

Changed

Fixed

Notes

This release completely refactored the structure of the transactions and broke compatibility with older versions of BigchainDB. The refactor of the transactions was made in order to add support for multiple inputs/outputs and the crypto-conditions specs from the Interledger protocol.

We also updated the RethinkDB Python drivers so you need to upgrade to RethinkDB v2.3+

[0.2.0] - 2016-04-26

Tag name: v0.2.0 = commit: 0c4a2b380aabdcf50fa2d7fb351c290aaedc3db7 committed: April 26, 2016, 11:09 AM GMT+2

Added

Changed

Fixed

External Contributors

[0.1.5] - 2016-04-20

Tag name: v0.1.5 = commit: 9f62cddbaf44167692cfee71db707bce93e3395f committed: April 20, 2016, 3:31 PM GMT+2

Fixed

[0.1.4] - 2016-02-22

Tag name: v0.1.4 = commit: c4c850f480bc9ae72df2a54f81c0825b6fb4ed62 committed: Feb 22, 2016, 11:51 AM GMT+1

Added

  • Added to classifiers to setup.py

Changed

[0.1.3] - 2016-02-16

Tag name: v0.1.3 = commit 8926e3216c1ee39b9bc332e5ef1df2a8901262dd committed Feb 16, 2016, 11:37 AM GMT+1

Changed

  • Changed from using Git Flow to GitHub flow (but with develop as the default branch).

[0.1.2] - 2016-02-15

Tag name: v0.1.2 = commit d2ff24166d69dda68dd7b4a24a88279b1d37e222 committed Feb 15, 2016, 2:23 PM GMT+1

Added

  • Various tests

Fixed

[0.1.1] - 2016-02-15

Tag name: v0.1.1 = commit 2a025448b29fe7056760de1039c73bbcfe992461 committed Feb 15, 2016, 10:48 AM GMT+1

Added

Removed

Fixed

[0.1.0] - 2016-02-10

Tag name: v0.1.0 = commit 8539e8dc2d036a4e0a866a3fb9e55889503254d5 committed Feb 10, 2016, 10:04 PM GMT+1

The first public release of BigchainDB, including:

  • Initial BigchainDB Server code, including many tests and some code for benchmarking.
  • Initial documentation (in bigchaindb/docs).
  • Initial README.md, ROADMAP.md, CODE_OF_CONDUCT.md, and CONTRIBUTING.md.
  • Packaging for PyPI, including setup.py and setup.cfg.
  • Initial Dockerfile and docker-compose.yml (for deployment using Docker and Docker Compose).
  • Initial .gitignore (list of things for git to ignore).
  • Initial .travis.yml (used by Travis CI).