cesql/v1.0.0

Notable changes between the WIP draft and the v1 specification are:

• Specify error types
• Clarify return values of expressions that encounter errors
• Clarify that missing attributes result in an error and the expression
  returning it's default value
• Add support for boolean to integer and integer to boolean type casting
• Clarify the order of operations
• Clarify how user defined functions work
• Define the default "zero" values for the built in types
• Clarify that string comparisons are case sensitive
• Specify which characters are treated as whitespace for the TRIM function
• Specify that functions must still return values along with errors, as well as
  the behaviour when user defined function do not do this correctly
• For the fail fast error handling mode, expressions now return the zero value
  for their return type when they encounter an error, rather than undefined

v1.0.2

• Add C# namespace option to proto - #937
• Tweak SDK requirements wording - #915
• Re-organized repo directory structure - #904/#905
• Translate CE specs into Chinese - #899/#898
• Explicitly state application/json defaulting when serializing - #881
• Add PowerShell SDK to the list of SDKs - #875
• WebHook "Origin" header concept clashes with RFC6454 - #870
• Clarify data encoding in JSON format with a JSON datacontenttype - #861
• Webhook-Allowed-Origin instead of Webhook-Request-Origin - #836
• Clean-up of Sampled Rate Extension - #832
• Remove the conflicting sentence in Kafka Binding - #823/#813
• Fix the sentences conflict in Kafka Binding - #814
• Clarify HTTP header value encoding and decoding requirements - #793
• Expand versioning suggestions in Primer - #799
• Add support for protobuf batch format - #801
• Clarify HTTP header value encoding and decoding requirements - #816
• Primer guidance for dealing with errors - #763
• Information Classification Extension - #785
• Clarify the role of partitioning extension in Kafka - #727

v1.0.1

• Add protobuf format as a sub-protocol - #721
• Allow JSON values to be null, meaning unset - #713
• [Primer] Adding a Non-Goal w.r.t Security - #712
• WebSockets protocol binding - #697
• Clarify difference between message mode and HTTP content mode - #672
• add missing sdks to readme - #666
• New sdk maintainers rules - #665
• move sdk governance and cleanup - #663
• Bring 'datadef' definition into line with specification - #658
• Add CoC and move some governance docs into 'community' - #656
• Add blog post around understanding Cloud Events interactions - #651
• SDK governance draft - #649
• docs: add common processes for SDK maintainers and contributors - #648
• Adding Demo for Cloud Events Orchestration - #646
• Clarified MUST requirement for JSON format - #644
• Re-Introducing Protocol Buffer Representation - #626
• Closes #615 - #616
• Reworked Distributed Tracing Extension - #607
• Minor updates to Cloud Events Primer - #600
• Kafka clarifications - #599
• Proprietary binding spec inclusion guide - #595
• Adding link to Pub/Sub binding - #588
• Add some clarity around SDK milestones - #584
• How to determine binary CE vs random non-CE message - #577
• Adding Visual Studio Code extension to community open-source doc - #573
• Specify encoding of kafka header keys and values and message key - #572
• Fix distributed tracing example - #569
• Paragraph about nested events to the primer - #567
• add rules for changing Admins- #564
• Updating JSON Schema - #563
• Say it's ok to ignore non-MUST recommendations - at your own risk - #562
• Update Distributed Tracing extension spec links - #550
• Add Ruby SDK to SDK lists - #548

v1.0

• Add CouchDB adapter specification - #542
• run the linter
• "Stand-alone event format" instead of "in-memory format" - #538
• Clarify interoperability of extensions - #508
• adding contrib entry
• another try at clarifying kafka
• fix minor typos
• if 521 and 529 go in, then rename for consistency
• Adjust AMQP spec to changes in #521 - #529
• Reword SDK.md to be more general. - #495
• Clarify meaning of missing datacontentype.
• Remove lower-case restriction, lint. - #522
• remove bad link for now
• Fixing link, using more consistent mark-up
• Update contributors.md
• Removed statement about denial
• adding myself to contributors.md
• Fix typo s/compliment/complement/
• fix double word
• remove wrong text, lint.
• Update example for 'application/avro' content

v1.0-rc1

• Modify docs for v1.0-rc1 release
• make extensions follow the same pattern as normal attrs - #505
• remove proto - see issue 504
• Syntax fixes - #506
• Update AVRO mappings to match current event schema and type system. - #497
• Fix up JSON type mappings - #496
• Extensions are not allowed to be nested any more.
• Only OPTIONAL attributes (conditional not needed
• Clarifications on the HTTP transport binding - #488
• remove dataencoding and intro data_base64 in JSON - #492
• Cleanup: Map and add URI in formats; re-add "Type System" heading - #493
• Remove "printable", disallow dodgy Unicode
• Tweak URI-references and be smart with Strings - #478
• tweak how we talk about data
• Allow for a LOA w.r.t. voting rights
• s/schemaurl/dataschema/ to be consistent - #475
• add ptr to sdk doc
• Add section to primer about error handling
• Avro Event Format for CloudEvents - #463
• We no longer put extensions into an 'extensions' bag
• Change wording to make it clear that Any which doesn't result in Map is allowed.
• Address Persistence
• Merge changes to spec.md
• Update with suggestions from PR=
• Kafka transport binding v2 - #337
• Clarifications on batching to address - #414
• minor github tweaks
• Fix some typos and grammatical errors per MS Word
• add s3
• Add a spot to describe adapters
• Forwarding OPTIONAL attributes - #461
• Fix capitalization of MAY NOT/SHOULD
• Make formatting of Any-context explicit in transports/formats.
• Add Any-context type.
• Merge remote-tracking branch 'upstream/master' into where-were-going-we-dont-need-maps
• Remove Map from allowed Context Attribute types
• Modify roadmap with a more clear goal of getting to v1.0
• Add non-goals for routing information.
• Primer edits - Architecture section - #390
• Add commercetools to contributors
• Added James Roper/Lightbend to contributors
• Fix README table - missing protobuf and reorder
• #436 Clarifying that Any can take the shape of any other type
• Add a little clarity around "type"
• v0.4-wip
• Be clearer about "time"

v0.3

• Update to title format - #447
• Remove blank section
• Misc. typo fixes
• Add some guidance on how to construct CloudEvents - #404
• Size Constraints - #405
• Type system changes // canonical string representation - #432
• Add some additional design points for ID - #403
• Add "Subject" context attribute definition
• Terminology additions for Source, Consumer, Producer and Intermediary - #420
• Added partitioning extension - #218
• Issue #331: Clarify scope of source and id uniqueness
• Added link to dataref.md
• Order the attributes section
• Fix bad hrefs for our images - #424
• Master represents the future version of the spec, use the future version in the text - #415
• Adjust examples to include AWS CloudWatch events, our de facto central Event format, and remove valid-but-not-terribly-relevant SNS & Kinesis examples.
• Add dataref attribute and describe Claim Check Pattern - #377
• Do some clean-up items for PR 406 that were missed
• Introducing "subject" - #406
• Added datacontentencoding - #387
• Add Apache RocketMQ proprietary binding with cloudevents
• Ran https://prettier.io/ command on all markdown - #411
• Privacy & Security - #399
• clarify what OPTIONAL means
• Extensions follow attribute naming scheme introduced in #321
• add to README
• fix typo
• The linter can't abide placeholder links 🙄
• Collect proprietary specs in dedicated file
• Move "extension attributes" section down to end of context attributes
• Fixed a broken link in the primer
• Fix broken link
• Consistency: schemaurl uses URI-reference, protobuf uses URI-reference
• HTTP Transport Binding for batching JSON - #370
• minLength for non-empty attributes, add schemaurl - #372
• Fix type reference in it's description
• Format data consistently with the paragraph above
• remove duplicate paragraph
• Add Integer as allowed for Any in description of variant type
• s/contenttype/datatype/g
• Add an announcement to our release process
• Transports are responsible for batching messages - #360
• Specify range of Integer type exactly - #361
• Fix TOC in http transport
• add KubeCon demo info

v0.2

• Added HTTP WebHook Specification (#155)
• Added AMQP 1.0 transport and AMQP type system mapping (#157)
• Added MQTT 3.1.1 and 5.0 transport binding (#158)
• Added NATS transport binding (#215)
• Added Distributed Tracing extension (#227)
• Added a Primer (#238)
• Added Sampling extension (#243)
• Defined minimum bar for new protocols/encodings (#254)
• Removed eventTypeVersion (#256)
• Moved serialization of extensions to be top-level JSON attributes (#277)
• Added Sequence extension (#291)
• Added Protobuf transport (#295)
• Defined minimum bar for new extensions (#308)
• Require all attributes to be lowercase and restrict the character set (#321)
• Simplified/shortened the attribute names (#339)
• Added initial draft of an SDK design doc (#356)

v0.1

First draft release of the spec!