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| <li><a href="connectivity-header-mapping.html">Header mapping</a></li> |
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| <li><a href="connectivity-tls-certificates.html">TLS certificates</a></li> |
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| <li><a href="connectivity-ssh-tunneling.html">SSH tunneling</a></li> |
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| </ul> |
| </li> |
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| <li class="subfolders"> |
| <a href="#"><span></span>Client SDK</a> |
| <ul> |
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| <li><a href="client-sdk-overview.html">Overview</a></li> |
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| <li><a href="client-sdk-java.html">Java</a></li> |
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| <li><a href="client-sdk-javascript.html">JavaScript</a></li> |
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| </ul> |
| </li> |
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| <li class="subfolders"> |
| <a href="#"><span></span>Ditto Protocol</a> |
| <ul> |
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| <li><a href="protocol-overview.html">Overview</a></li> |
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| <li><a href="protocol-twinlive.html">Twin/live channel</a></li> |
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| <li><a href="protocol-specification.html">Specification</a></li> |
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| <li><a href="protocol-specification-topic.html">Protocol topic</a></li> |
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| <li><a href="protocol-specification-errors.html">Errors</a></li> |
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| <li><a href="protocol-specification-things.html">Things group</a></li> |
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| <li class="subfolders"> |
| <a href="#"><span></span>→ commands/events</a> |
| <ul> |
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| <li><a href="protocol-specification-things-create-or-modify.html">Create/Modify</a></li> |
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| <li><a href="protocol-specification-things-merge.html">Merge</a></li> |
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| <li><a href="protocol-specification-things-retrieve.html">Retrieve</a></li> |
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| <li><a href="protocol-specification-things-delete.html">Delete</a></li> |
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| <li><a href="protocol-specification-acks.html">Acknowledgements</a></li> |
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| </ul> |
| </li> |
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| <li class="subfolders"> |
| <a href="#"><span></span>→ search/messages</a> |
| <ul> |
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| <li><a href="protocol-specification-things-search.html">Search</a></li> |
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| <li><a href="protocol-specification-things-messages.html">Messages</a></li> |
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| </ul> |
| </li> |
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| <li><a href="protocol-specification-policies.html">Policies group</a></li> |
| |
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| |
| <li class="subfolders"> |
| <a href="#"><span></span>→ commands/events</a> |
| <ul> |
| |
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| <li><a href="protocol-specification-policies-create-or-modify.html">Create/Modify</a></li> |
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| <li><a href="protocol-specification-policies-retrieve.html">Retrieve</a></li> |
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| <li><a href="protocol-specification-policies-delete.html">Delete</a></li> |
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| <li><a href="protocol-specification-policies-announcement.html">Announcement</a></li> |
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| </ul> |
| </li> |
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| <li><a href="protocol-bindings.html">Bindings</a></li> |
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| <li><a href="protocol-examples.html">Examples</a></li> |
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| <li class="subfolders"> |
| <a href="#"><span></span>→ Things examples</a> |
| <ul> |
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| <li><a href="protocol-examples-creatething.html">Create a Thing</a></li> |
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| <li><a href="protocol-examples-deletething.html">Delete a Thing</a></li> |
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| <li><a href="protocol-examples-modifything.html">Modify a Thing</a></li> |
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| <li><a href="protocol-examples-retrievething.html">Retrieve a Thing</a></li> |
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| <li><a href="protocol-examples-retrievethings.html">Retrieve multiple Things</a></li> |
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| <li><a href="protocol-examples-modifypolicyid.html">Modify the Policy ID of a Thing</a></li> |
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| <li><a href="protocol-examples-createattributes.html">Create Attributes</a></li> |
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| <li><a href="protocol-examples-deleteattributes.html">Delete Attributes</a></li> |
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| <li><a href="protocol-examples-modifyattributes.html">Modify Attributes</a></li> |
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| <li><a href="protocol-examples-retrieveattributes.html">Retrieve Attributes</a></li> |
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| <li><a href="protocol-examples-createattribute.html">Create a single Attribute</a></li> |
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| <li><a href="protocol-examples-deleteattribute.html">Delete a single Attribute</a></li> |
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| <li><a href="protocol-examples-modifyattribute.html">Modify a single Attribute</a></li> |
| |
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| <li><a href="protocol-examples-retrieveattribute.html">Retrieve a single Attribute</a></li> |
| |
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| <li><a href="protocol-examples-createthingdefinition.html">Create a Definition</a></li> |
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| <li><a href="protocol-examples-deletethingdefinition.html">Delete a Definition</a></li> |
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| <li><a href="protocol-examples-modifythingdefinition.html">Modify a Definition</a></li> |
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| <li><a href="protocol-examples-retrievethingdefinition.html">Retrieve a Definition</a></li> |
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| <li><a href="protocol-examples-createfeatures.html">Create Features</a></li> |
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| <li><a href="protocol-examples-deletefeatures.html">Delete Features</a></li> |
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| <li><a href="protocol-examples-modifyfeatures.html">Modify Features</a></li> |
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| <li><a href="protocol-examples-retrievefeatures.html">Retrieve Features</a></li> |
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| <li><a href="protocol-examples-createfeature.html">Create a single Feature</a></li> |
| |
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| <li><a href="protocol-examples-deletefeature.html">Delete a single Feature</a></li> |
| |
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| <li><a href="protocol-examples-modifyfeature.html">Modify a single Feature</a></li> |
| |
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| <li><a href="protocol-examples-retrievefeature.html">Retrieve a single Feature</a></li> |
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| <li><a href="protocol-examples-createdefinition.html">Create Feature Definition</a></li> |
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| <li><a href="protocol-examples-deletedefinition.html">Delete Feature Definition</a></li> |
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| <li><a href="protocol-examples-modifydefinition.html">Modify Feature Definition</a></li> |
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| <li><a href="protocol-examples-retrievedefinition.html">Retrieve Feature Definition</a></li> |
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| <li><a href="protocol-examples-createproperties.html">Create Feature Properties</a></li> |
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| <li><a href="protocol-examples-deleteproperties.html">Delete Feature Properties</a></li> |
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| <li><a href="protocol-examples-modifyproperties.html">Modify Feature Properties</a></li> |
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| <li><a href="protocol-examples-retrieveproperties.html">Retrieve Feature Properties</a></li> |
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| <li><a href="protocol-examples-createproperty.html">Create a single Property</a></li> |
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| <li><a href="protocol-examples-deleteproperty.html">Delete a single Property</a></li> |
| |
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| <li><a href="protocol-examples-modifyproperty.html">Modify a single Property</a></li> |
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| <li><a href="protocol-examples-retrieveproperty.html">Retrieve a single Property</a></li> |
| |
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| <li><a href="protocol-examples-createdesiredproperties.html">Create desired Feature Properties</a></li> |
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| <li><a href="protocol-examples-deletedesiredproperties.html">Delete desired Feature Properties</a></li> |
| |
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| <li><a href="protocol-examples-modifydesiredproperties.html">Modify desired Feature Properties</a></li> |
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| <li><a href="protocol-examples-retrievedesiredproperties.html">Retrieve desired Feature Properties</a></li> |
| |
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| <li><a href="protocol-examples-createdesiredproperty.html">Create a single desired Property</a></li> |
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| <li><a href="protocol-examples-deletedesiredproperty.html">Delete a single desired Property</a></li> |
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| <li><a href="protocol-examples-modifydesiredproperty.html">Modify a single desired Property</a></li> |
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| <li><a href="protocol-examples-retrievedesiredproperty.html">Retrieve a single desired Property</a></li> |
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| <li><a href="protocol-examples-errorresponses.html">Error responses</a></li> |
| |
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| </ul> |
| </li> |
| |
| |
| |
| <li class="subfolders"> |
| <a href="#"><span></span>→ Things merge examples</a> |
| <ul> |
| |
| |
| |
| <li><a href="protocol-examples-mergething.html">Merge a Thing</a></li> |
| |
| |
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| <li><a href="protocol-examples-mergepolicyid.html">Merge the Policy ID of a Thing</a></li> |
| |
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| <li><a href="protocol-examples-mergeattributes.html">Merge Attributes</a></li> |
| |
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| <li><a href="protocol-examples-mergeattribute.html">Merge a single Attribute</a></li> |
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| <li><a href="protocol-examples-mergethingdefinition.html">Merge a Definition</a></li> |
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| <li><a href="protocol-examples-mergefeatures.html">Merge Features</a></li> |
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| <li><a href="protocol-examples-mergefeature.html">Merge a single Feature</a></li> |
| |
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| <li><a href="protocol-examples-mergefeaturedefinition.html">Merge Feature Definition</a></li> |
| |
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| <li><a href="protocol-examples-mergeproperties.html">Merge Feature Properties</a></li> |
| |
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| <li><a href="protocol-examples-mergeproperty.html">Merge a single Property</a></li> |
| |
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| <li><a href="protocol-examples-mergedesiredproperties.html">Merge desired Feature Properties</a></li> |
| |
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| <li><a href="protocol-examples-mergedesiredproperty.html">Merge a single desired Property</a></li> |
| |
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| <li><a href="protocol-examples-errorresponses.html">Error responses</a></li> |
| |
| |
| |
| </ul> |
| </li> |
| |
| |
| |
| <li class="subfolders"> |
| <a href="#"><span></span>→ Policies examples</a> |
| <ul> |
| |
| |
| |
| <li><a href="protocol-examples-policies-createpolicy.html">Create a Policy</a></li> |
| |
| |
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| |
| <li><a href="protocol-examples-policies-deletepolicy.html">Delete a Policy</a></li> |
| |
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| <li><a href="protocol-examples-policies-modifypolicy.html">Modify a Policy</a></li> |
| |
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| <li><a href="protocol-examples-policies-retrievepolicy.html">Retrieve a Policy</a></li> |
| |
| |
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| |
| <li><a href="protocol-examples-policies-modifypolicyentries.html">Modify entries</a></li> |
| |
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| |
| <li><a href="protocol-examples-policies-retrievepolicyentries.html">Retrieve entries</a></li> |
| |
| |
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| |
| <li><a href="protocol-examples-policies-createpolicyentry.html">Create a single entry</a></li> |
| |
| |
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| |
| <li><a href="protocol-examples-policies-deletepolicyentry.html">Delete a single entry</a></li> |
| |
| |
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| |
| |
| <li><a href="protocol-examples-policies-modifypolicyentry.html">Modify a single entry</a></li> |
| |
| |
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| |
| |
| <li><a href="protocol-examples-policies-retrievepolicyentry.html">Retrieve a single entry</a></li> |
| |
| |
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| |
| |
| <li><a href="protocol-examples-policies-modifysubjects.html">Modify subjects</a></li> |
| |
| |
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| |
| |
| <li><a href="protocol-examples-policies-retrievesubjects.html">Retrieve subjects</a></li> |
| |
| |
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| <li><a href="protocol-examples-policies-createsubject.html">Create a single subject</a></li> |
| |
| |
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| |
| <li><a href="protocol-examples-policies-deletesubject.html">Delete a single subject</a></li> |
| |
| |
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| |
| |
| <li><a href="protocol-examples-policies-modifysubject.html">Modify a single subject</a></li> |
| |
| |
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| |
| |
| <li><a href="protocol-examples-policies-retrievesubject.html">Retrieve a single subject</a></li> |
| |
| |
| |
| |
| |
| <li><a href="protocol-examples-policies-modifyresources.html">Modify resources</a></li> |
| |
| |
| |
| |
| |
| <li><a href="protocol-examples-policies-retrieveresources.html">Retrieve resources</a></li> |
| |
| |
| |
| |
| |
| <li><a href="protocol-examples-policies-createresource.html">Create a single resource</a></li> |
| |
| |
| |
| |
| |
| <li><a href="protocol-examples-policies-deleteresource.html">Delete a single resource</a></li> |
| |
| |
| |
| |
| |
| <li><a href="protocol-examples-policies-modifyresource.html">Modify a single resource</a></li> |
| |
| |
| |
| |
| |
| <li><a href="protocol-examples-policies-retrieveresource.html">Retrieve a single resource</a></li> |
| |
| |
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| |
| |
| <li><a href="protocol-examples-policies-errorresponses.html">Error responses</a></li> |
| |
| |
| |
| |
| |
| <li><a href="protocol-examples-policies-announcement-subjectDeletion.html">Announcement for subject deletion</a></li> |
| |
| |
| |
| </ul> |
| </li> |
| |
| |
| |
| |
| |
| |
| <li><a href="protocol-examples-search.html">→ Search examples</a></li> |
| |
| |
| |
| |
| </ul> |
| </li> |
| |
| |
| |
| |
| |
| <li><a href="sandbox.html">Sandbox</a></li> |
| |
| |
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| <li><a href="presentations.html">Presentations</a></li> |
| |
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| <li><a href="glossary.html">Glossary</a></li> |
| |
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| <li><a href="feedback.html">Feedback</a></li> |
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| <p class="external"> |
| <a href="#" id="collapseAll">Collapse All</a> | <a href="#" id="expandAll">Expand All</a> |
| </p> |
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| </ul> |
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| <!-- Content Column --> |
| <div class="col-md-9" id="tg-sb-content"> |
| <div class="post-header"> |
| <h1 class="post-title-main">Release notes 0.9.0</h1> |
| </div> |
| |
| |
| |
| <div class="post-content"> |
| |
| |
| <div class="summary">Version 0.9.0 of Eclipse Ditto, released on 10.07.2019</div> |
| |
| |
| |
| |
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| <div id="toc"></div> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <p>During several very hot summer days the Eclipse Ditto team worked on that last issues which were blocking our next |
| release: <code class="highlighter-rouge">0.9.0</code>.</p> |
| |
| <p>The successor release of <a href="release_notes_080.html">0.8.0</a> will most likely be the last “0.” incubation release as Ditto |
| is moving forward for a <code class="highlighter-rouge">1.0.0</code> and a project graduation in Eclipse IoT.</p> |
| |
| <p>Same as for <code class="highlighter-rouge">0.8.0</code> this release is completely <a href="https://www.eclipse.org/projects/handbook/#ip">IP (intellectual property) checked by |
| the Eclipse Foundation</a> meaning that project code as well as all used |
| dependencies were “[…] reviewed to ensure that the copyrights expressed are correct, licensing is valid |
| and compatible, and that other issues have been uncovered and properly investigated.”</p> |
| |
| <h2 id="whats-in-this-release">What’s in this release?</h2> |
| |
| <p>Eclipse Ditto 0.9.0 focuses on the following areas:</p> |
| |
| <ul> |
| <li>Memory improvements for huge amounts (multi million) of digital twins which are held in memory</li> |
| <li>Adding metrics and logging around the connectivity feature in order to enable being able to operate connections to foreign systems/brokers via APIs</li> |
| <li>Enhancing Ditto’s connectivity feature by additionally being able to connect to Apache Kafka</li> |
| <li>Performance improvements of Ditto’s search functionality</li> |
| <li>Stabilization of cluster bootstrapping</li> |
| <li>Refactoring of how the services configurations are determined</li> |
| <li>Addition of a Helm template in order to simplify Kubernetes based deployments</li> |
| <li>Contributions from Microsoft in order to ease operating Eclipse Ditto on Microsoft Azure</li> |
| </ul> |
| |
| <div class="alert alert-danger" role="alert"><i class="fa fa-exclamation-circle"></i> <b>Warning:</b> If you want to upgrade an existing Ditto 0.8.0 installation, the following database |
| migration has to be done: <strong>Follow the steps documented in <a href="architecture-services-things-search.html#migration-from-ditto-090-m1">the migration notes</a></strong>.</div> |
| |
| <h3 id="changelog">Changelog</h3> |
| |
| <p>Compared to the latest milestone release <a href="release_notes_090-M2.html">0.9.0-M2</a>, the following changes, new features and |
| bugfixes were added.</p> |
| |
| <h4 id="changes">Changes</h4> |
| |
| <h5 id="streamline-configuration"><a href="https://github.com/eclipse/ditto/issues/350">Streamline configuration</a></h5> |
| |
| <p>In this release, we changed how internally the configuration is determined in Ditto’s microservices. This should not |
| have any impact on a user of Eclipse Ditto. As however some configuration keys were remanded or restructured, some |
| adjustments when manually configuring Ditto could be required.</p> |
| |
| <h4 id="new-features">New features</h4> |
| |
| <h5 id="introduce-cursor-based-paging-for-search-requests"><a href="https://github.com/eclipse/ditto/pull/407">Introduce cursor-based paging for search requests</a></h5> |
| |
| <p>In order to provide a constant performance for using pagination for the <code class="highlighter-rouge">things-search</code> miscroservice across even large |
| result sets (100s of thousands or more) of digital twins, a new cursor-based approach was added in addition to the |
| old <code class="highlighter-rouge">offset/limit</code> approach which gets slower for each page.</p> |
| |
| <h5 id="simple-throttling-for-amqp-10-consumers"><a href="https://github.com/eclipse/ditto/pull/420">Simple throttling for amqp 1.0 consumers</a></h5> |
| |
| <p>Added a simple throttling mechanism for amqp 1.0 consumers. |
| The throttling is configurable by defining the number of messages allowed per time interval.</p> |
| |
| <h5 id="collect-connectivity-log-entries-and-provide-via-devops-command"><a href="https://github.com/eclipse/ditto/issues/318">Collect connectivity log entries and provide via devops command</a></h5> |
| |
| <p>In order to let a user analyze failures / unexpected behavior in his connections (e.g. to an MQTT or AMQP broker) |
| without giving him full access to the log-files of Ditto, a connection scoped mechanism for retrieving connectivity logs |
| was added.</p> |
| |
| <h4 id="bugfixes">Bugfixes</h4> |
| |
| <h5 id="memory-and-performance-fixes-in-concierge-gateway"><a href="https://github.com/eclipse/ditto/pull/400">Memory and performance fixes in concierge, gateway</a></h5> |
| |
| <p>Ditto’s <code class="highlighter-rouge">concierge</code> service did use a sharding approach for enforcing authorization information which lead to huge |
| amounts of memory required when managing multi million of digital twins.</p> |
| |
| <p>That, in addition to some memory fixes in the gateway and addition of metrics, was fixed in this PR.</p> |
| |
| <h5 id="ensure-ordering-for-processed-commands"><a href="https://github.com/eclipse/ditto/pull/417">Ensure ordering for processed commands</a></h5> |
| |
| <p>In previous versions of Ditto the order in which command were processed not guaranteed to be maintained. As maintaining |
| the order however is the expected behavior, we decided to treat that as bug and added to the <code class="highlighter-rouge">concierge</code> service (where |
| the order could be lost) to sequentially process commands issues via HTTP/WebSocket and connections.</p> |
| |
| <p>This release contains several bugfixes, this is a complete list of the |
| <a href="https://github.com/eclipse/ditto/pulls?q=is%3Apr+milestone%3A0.9.0+">merged pull requests</a>.</p> |
| |
| <h2 id="api-stability">API stability</h2> |
| |
| <p>As you noticed, Ditto is not yet released as 1.x version, it is still an |
| <a href="https://wiki.eclipse.org/Development_Resources/Process_Guidelines/What_is_Incubation">incubating Eclipse project</a>.</p> |
| |
| <p>That means that the project <em>could</em> choose to break APIs at any time without prior deprecation.</p> |
| |
| <p>We however can already guarantee that at the HTTP API for API version 1 and 2 the |
| API stability is already ensured for the core functionality of managing <code class="highlighter-rouge">things</code> and <code class="highlighter-rouge">policies</code>.</p> |
| |
| <p>As the commercial product based on Eclipse Ditto, <a href="https://www.bosch-iot-suite.com/things/">Bosch IoT Things</a>, is |
| already used productive and in various projects, the API stability has to be and will be ensured moving forward towards |
| a 1.0.0 release.</p> |
| |
| <h2 id="roadmap">Roadmap</h2> |
| |
| <p>The Ditto project plans on releasing (non-milestone releases) twice per year, once every 6 months.</p> |
| |
| <p>In late 2019 we expect to graduate (exit the Eclipse incubation phase) with a 1.0.0 release.</p> |
| |
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