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changelog 2.15.7 (#726)
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scottf authored Sep 15, 2022
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19 changes: 19 additions & 0 deletions CHANGELOG.md
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# Change Log

## 2.15.7 Support Server v2.9.0 and Object Store Experimental

#### JetStream / Management
* Get Message Enhancement #696 @scottf
* No Erase option on message delete #698 @scottf
* Support v2.9.0 Get Direct Message feature #701 #703 @scottf
* Support v2.9.0 Consumer Create feature #723 #725 @scottf

#### Key Value
* Fix bug to return null instead of entry on get of deleted or purged key #700 @scottf
* Allow direct configuration for KV #718 #724 @scottf

#### Object Store
* Initial implementation, experimental. #705 #714 #720 @scottf

#### Core
* Static Memory Auth Handler #702 @scottf
* Support v2.9.0 stream configuration republish #709 @scottf

## 2.15.6 new Consumer configuration fields

#### Core
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84 changes: 42 additions & 42 deletions README.md
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Previous versions are still available in the repo.

### Versions 2.11.6 and server versions

Version 2.11.6 is the last java-nats version which is supported to work with server v2.3.4 and earlier.
It will not be officially supported to work with servers after v2.3.4, but _should be fine_ if you don't use
the queue behavior advertised in example code `NatsJsPushSubQueueDurable.java` and provided with java-nats 2.11.5.
The example does not work correctly against server versions after server v2.3.4
due to a significant change made to correct _queue_ behavior that was considered wrong.

If you want to take advantage of the fixes and features provided in the server after v2.3.4,
you __must__ upgrade to the release version 2.12.0 or later.

### SSL/TLS Performance

After recent tests we realized that TLS performance is lower than we would like. After researching the problem and possible solutions we came to a few conclusions:
Expand Down Expand Up @@ -558,37 +547,48 @@ Subscription creation has many checks to make sure that a valid, operable subscr
`SO` group are validations that can occur when building push or pull subscribe options.
`SUB` group are validations that occur when creating a subscription.

| Name | Group | Code | Description |
| --- | --- | --- | --- |
| JsSoDurableMismatch | SO | 90101 | Builder durable must match the consumer configuration durable if both are provided. |
| JsSoDeliverGroupMismatch | SO | 90102 | Builder deliver group must match the consumer configuration deliver group if both are provided. |
| JsSoDeliverSubjectMismatch | SO | 90103 | Builder deliver subject must match the consumer configuration deliver subject if both are provided. |
| JsSoOrderedNotAllowedWithBind | SO | 90104 | Bind is not allowed with an ordered consumer. |
| JsSoOrderedNotAllowedWithDeliverGroup | SO | 90105 | Deliver group is not allowed with an ordered consumer. |
| JsSoOrderedNotAllowedWithDurable | SO | 90106 | Durable is not allowed with an ordered consumer. |
| JsSoOrderedNotAllowedWithDeliverSubject | SO | 90107 | Deliver subject is not allowed with an ordered consumer. |
| JsSoOrderedRequiresAckPolicyNone | SO | 90108 | Ordered consumer requires Ack Policy None. |
| JsSoOrderedRequiresMaxDeliver | SO | 90109 | Max deliver is limited to 1 with an ordered consumer. |
| JsSubPullCantHaveDeliverGroup | SUB | 90001 | Pull subscriptions can't have a deliver group. |
| JsSubPullCantHaveDeliverSubject | SUB | 90002 | Pull subscriptions can't have a deliver subject. |
| JsSubPushCantHaveMaxPullWaiting | SUB | 90003 | Push subscriptions cannot supply max pull waiting. |
| JsSubQueueDeliverGroupMismatch | SUB | 90004 | Queue / deliver group mismatch. |
| JsSubFcHbNotValidPull | SUB | 90005 | Flow Control and/or heartbeat is not valid with a pull subscription. |
| JsSubFcHbNotValidQueue | SUB | 90006 | Flow Control and/or heartbeat is not valid in queue mode. |
| JsSubNoMatchingStreamForSubject | SUB | 90007 | No matching streams for subject. |
| JsSubConsumerAlreadyConfiguredAsPush | SUB | 90008 | Consumer is already configured as a push consumer. |
| JsSubConsumerAlreadyConfiguredAsPull | SUB | 90009 | Consumer is already configured as a pull consumer. |
| _removed_ | SUB | 90010 | |
| JsSubSubjectDoesNotMatchFilter | SUB | 90011 | Subject does not match consumer configuration filter. |
| JsSubConsumerAlreadyBound | SUB | 90012 | Consumer is already bound to a subscription. |
| JsSubExistingConsumerNotQueue | SUB | 90013 | Existing consumer is not configured as a queue / deliver group. |
| JsSubExistingConsumerIsQueue | SUB | 90014 | Existing consumer is configured as a queue / deliver group. |
| JsSubExistingQueueDoesNotMatchRequestedQueue | SUB | 90015 | Existing consumer deliver group does not match requested queue / deliver group. |
| JsSubExistingConsumerCannotBeModified | SUB | 90016 | Existing consumer cannot be modified. |
| JsSubConsumerNotFoundRequiredInBind | SUB | 90017 | Consumer not found, required in bind mode. |
| JsSubOrderedNotAllowOnQueues | SUB | 90018 | Ordered consumer not allowed on queues. |
| JsSubPushCantHaveMaxBatch | SUB | 90019 | Push subscriptions cannot supply max batch. |
| JsSubPushCantHaveMaxBytes | SUB | 90020 | Push subscriptions cannot supply max bytes. |
| Name | Group | Code | Description |
|----------------------------------------------|-------|-------|-----------------------------------------------------------------------------------------------------|
| JsSoDurableMismatch | SO | 90101 | Builder durable must match the consumer configuration durable if both are provided. |
| JsSoDeliverGroupMismatch | SO | 90102 | Builder deliver group must match the consumer configuration deliver group if both are provided. |
| JsSoDeliverSubjectMismatch | SO | 90103 | Builder deliver subject must match the consumer configuration deliver subject if both are provided. |
| JsSoOrderedNotAllowedWithBind | SO | 90104 | Bind is not allowed with an ordered consumer. |
| JsSoOrderedNotAllowedWithDeliverGroup | SO | 90105 | Deliver group is not allowed with an ordered consumer. |
| JsSoOrderedNotAllowedWithDurable | SO | 90106 | Durable is not allowed with an ordered consumer. |
| JsSoOrderedNotAllowedWithDeliverSubject | SO | 90107 | Deliver subject is not allowed with an ordered consumer. |
| JsSoOrderedRequiresAckPolicyNone | SO | 90108 | Ordered consumer requires Ack Policy None. |
| JsSoOrderedRequiresMaxDeliver | SO | 90109 | Max deliver is limited to 1 with an ordered consumer. |
| JsSoNameMismatch | SO | 90110 | Builder name must match the consumer configuration name if both are provided. |
| JsSubPullCantHaveDeliverGroup | SUB | 90001 | Pull subscriptions can't have a deliver group. |
| JsSubPullCantHaveDeliverSubject | SUB | 90002 | Pull subscriptions can't have a deliver subject. |
| JsSubPushCantHaveMaxPullWaiting | SUB | 90003 | Push subscriptions cannot supply max pull waiting. |
| JsSubQueueDeliverGroupMismatch | SUB | 90004 | Queue / deliver group mismatch. |
| JsSubFcHbNotValidPull | SUB | 90005 | Flow Control and/or heartbeat is not valid with a pull subscription. |
| JsSubFcHbNotValidQueue | SUB | 90006 | Flow Control and/or heartbeat is not valid in queue mode. |
| JsSubNoMatchingStreamForSubject | SUB | 90007 | No matching streams for subject. |
| JsSubConsumerAlreadyConfiguredAsPush | SUB | 90008 | Consumer is already configured as a push consumer. |
| JsSubConsumerAlreadyConfiguredAsPull | SUB | 90009 | Consumer is already configured as a pull consumer. |
| _removed_ | SUB | 90010 | |
| JsSubSubjectDoesNotMatchFilter | SUB | 90011 | Subject does not match consumer configuration filter. |
| JsSubConsumerAlreadyBound | SUB | 90012 | Consumer is already bound to a subscription. |
| JsSubExistingConsumerNotQueue | SUB | 90013 | Existing consumer is not configured as a queue / deliver group. |
| JsSubExistingConsumerIsQueue | SUB | 90014 | Existing consumer is configured as a queue / deliver group. |
| JsSubExistingQueueDoesNotMatchRequestedQueue | SUB | 90015 | Existing consumer deliver group does not match requested queue / deliver group. |
| JsSubExistingConsumerCannotBeModified | SUB | 90016 | Existing consumer cannot be modified. |
| JsSubConsumerNotFoundRequiredInBind | SUB | 90017 | Consumer not found, required in bind mode. |
| JsSubOrderedNotAllowOnQueues | SUB | 90018 | Ordered consumer not allowed on queues. |
| JsSubPushCantHaveMaxBatch | SUB | 90019 | Push subscriptions cannot supply max batch. |
| JsSubPushCantHaveMaxBytes | SUB | 90020 | Push subscriptions cannot supply max bytes. |
| OsObjectNotFound | OS | 90201 | The object was not found. |
| OsObjectIsDeleted | OS | 90202 | The object is deleted. |
| OsObjectAlreadyExists | OS | 90203 | An object with that name already exists. |
| OsCantLinkToLink | OS | 90204 | A link cannot link to another link. |
| OsGetDigestMismatch | OS | 90205 | Digest does not match meta data. |
| OsGetChunksMismatch | OS | 90206 | Number of chunks ddoes not match meta data. |
| OsGetSizeMismatch | OS | 90207 | Total size does not match meta data. |
| OsGetLinkToBucket | OS | 90208 | Cannot get object, it is a link to a bucket. |
| JsConsumerCantUseNameBefore290 | CON | 90301 | Name field not valid against pre v2.9.0 servers. |
| JsConsumerNameDurableMismatch | CON | 90302 | Name must match durable if both are supplied. |

### Message Acknowledgements

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