////
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regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

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software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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////
== TinkerPop 3.4.0 (Avant-Gremlin Construction #3 for Theremin and Flowers)

image::https://raw.githubusercontent.com/apache/tinkerpop/master/docs/static/images/avant-gremlin.png[width=185]

[[release-3-4-13]]
=== TinkerPop 3.4.13 (Release Date: January 10, 2022)

* Fixed `RangeGlobalStep` which was prematurely closing the iterator.
* Added explicit state to `DefaultTraversal` to track whether or not it was fully iterated and closed to ensure it released resources properly.
* Prevented XML External Entity (XXE) style attacks via `GraphMLReader` by disabling DTD and external entities by default.
* Improved error message for failed serialization for HTTP-based requests.
* Fixed a `NullPointerException` that could occur during a failed `Connection` initialization due to uninstantiated `AtomicInteger`.
* Minor changes to the initialization of Java driver `Cluster` and `Client` such that hosts are marked as available only after successfully initializing connection pools.
* `NoHostAvailableException` now contains a cause for the failure.
* Bumped to Netty 4.1.72.
* Added user-friendly message in Gremlin console for unavailable hosts upon initiation and fixed possible leak in `RemoteCommand.groovy` upon `RemoteException`.

==== Bugs

* TINKERPOP-2569 Reconnect to server if Java driver fails to initialize
* TINKERPOP-2589 XML External Entity (XXE) vulnerability
* TINKERPOP-2597 NullPointerException while initializing connection pool
* TINKERPOP-2603 TinkerGraph sometimes could not query float values.
* TINKERPOP-2609 HTTP returns serialization exceptions for the GraphTraversalSource
* TINKERPOP-2626 RangeGlobalStep closes traversal prematurely

==== Improvements

* TINKERPOP-2504 Intermittently failing server/driver integration tests
* TINKERPOP-2616 Provide better exceptions with SSL related failures *(breaking)*
* TINKERPOP-2630 Clarify that a server cannot support Graphson1.0 over HTTP
* TINKERPOP-2632 Netty 4.1.61 flagged with two high severity security violations
* TINKERPOP-2669 Netty 4.1.61 flagged with medium severity security violations

[[release-3-4-12]]
=== TinkerPop 3.4.12 (Release Date: July 19, 2021)

* Coerced single `set` arguments to `P.within` and `P.without` to `list` in Python which serializes to a more expected form for `P` instances.
* Fixed bug in the `vertexLabelKey` validation for `GraphMLWriter` which was inadvertently validating the `edgeLabelKey`.
* Changed `IndexStep` to make it easier for providers to determine the type of indexer being used.
* Allowed Javascript `Translator` to take `Bytecode` or a `Traversal`.
* Addressed CVE-2021-32640 for gremlin-javascript.
* Allowed construction of `DriverRemoteConnection` in .NET to use host and port specification similar to Java syntax.
* Defaulted `DriverRemoteConnection` to "g" if it the `TraversalSource` binding isn't supplied in Python.
* Initialized metrics in `ProfileStep` even if the step hasn't iterated.

==== Bugs

* TINKERPOP-2358 Potential connection leak on client disposing
* TINKERPOP-2554 Extracting step metrics from ProfileStep throws NPE if the step was not triggered
* TINKERPOP-2565 GraphMLWriter does not check vertexLabelKey conflict
* TINKERPOP-2578 Set arguments to P within/without are wrapped in List
* TINKERPOP-2580 Update the custom DSL documentation

==== Improvements

* TINKERPOP-2548 Add getter for indexer used in IndexStep
* TINKERPOP-2577 Remove unused test coverage dependencies from Gremlin.NET

[[release-3-4-11]]
=== TinkerPop 3.4.11 (Release Date: May 3, 2021)

* Prevented Java driver from sending multiple request messages with the same identifier.
* Improved error message for `property(T,Object)` when mutating graph elements.
* Added method caching for GraphSON 3.0 deserialization of `P` and `TextP` instances.
* Allowed setting `ssl_options` for gremlin-python.
* Fixed bug with global `dedup()` when used in reducing `by()` of `group()`.
* Fixed bug with Javascript Groovy `Translator` when generating Gremlin with multiple embedded traversals.
* Modified Gremlin Server `Settings` to be more extensible allowing for custom options with the YAML parser.
* Fixed `toString()` representation of `P` when string values are present in Javascript.
* Exposed barrier size with getter for `NoOpBarrierStep`.
* Bumped to Netty 4.1.61.
* Added `max_content_length` as a Python driver setting.
* Fixed bug in Java `Client` initialization, reconnect and shutdown where certain thread pool configurations might produce a deadlock.
* Ensured that `barrier()` additions by strategies were controlled solely by `LazyBarrierStrategy`.
* Fixed `NullPointerException` in `ResponseMessage` deserialization for GraphSON.
* Enabled the Gremlin.Net driver to repair its connection pool after the server was temporarily unavailable.
* Added the ability to supply a `HandshakeInterceptor` to a `Cluster` which will provide access to the initial HTTP request that establishes the websocket.
* Fixed a possible leakage of connections in the Gremlin.NET driver that could happen if `Dispose()` was called while the pool was creating connections.

==== Bugs

* TINKERPOP-2512 Duplicate jars in classpath when running gremlin-server.sh
* TINKERPOP-2514 Java client driver requests with same request ids hang
* TINKERPOP-2516 Property folding has trouble with coalesce
* TINKERPOP-2529 Global dedup() in reducing by() of group() detaches elements for OLTP
* TINKERPOP-2531 Gremlin .NET driver ConnectionPool can remain without connections if server is down for 1-2 minutes

==== Improvements

* TINKERPOP-1994 LazyBarrierStrategy fully responsible for barrier() additions
* TINKERPOP-2168 GraphSON: P deserialization should be optimized
* TINKERPOP-2457 Add a max_content_length parameter to DriverRemoteConnection in the Python client
* TINKERPOP-2532 MaxBarrierSize of NoOpBarrierStep should be accessible
* TINKERPOP-2535 Netty 4.1.52 flagged as medium security violation
* TINKERPOP-2547 Provide an option to supply a callback before handshake submission
* TINKERPOP-2550 Deadlock on Client initialization

[[release-3-4-10]]
=== TinkerPop 3.4.10 (Release Date: January 18, 2021)

* Added `GremlinScriptChecker` to provide a way to extract properties of scripts before doing an actual `eval()`.
* Added `none()` step for all language variants.
* Fixed bug in `PythonTranslator` which was improperly translating `Lambda` scripts.
* Fixed bug in `GremlinDslProcessor` where certain return types in `TraversalSource` definitions were not generating code that would compile.
* Changed the default read and write timeout values for the `TornadoTransport` to `None` to disable it.
* Bumped to Groovy 2.5.14.

==== Bugs

* TINKERPOP-2496 GremlinDslProcessor fails when SocialTraversalSourceDsl overrides close
* TINKERPOP-2505 Gremlin Python Client Query Times out at 30 seconds instead of the server timeout

==== Improvements

* TINKERPOP-2447 Improve handling of StackOverflowError for long traversals
* TINKERPOP-2485 Invalid http tests with ?gremlin=1-1
* TINKERPOP-2500 Add none() step for all GLVs

[[release-3-4-9]]
=== TinkerPop 3.4.9 (Release Date: December 7, 2020)

* Modified the text of `profile()` output to hide step instances injected for purpose of collecting metrics.
* Bumped to Jackson 2.11.x.
* Bumped Netty 4.1.52.
* Added lambda support for `gremlin-javascript`.
* Provided a more concise syntax for constructing strategies in Groovy.
* Aligned `CoreImports` with `GroovyTranslator` to generate more succinct syntax.
* Improved `gremlin-groovy` understanding of `withSack()` overloads to avoid forced casts.
* Moved `Translator` instances to `gremlin-core`.
* Prevented barriers from over-reaching their limits by one.
* Added `CheckedGraphManager` to prevent Gremlin Server from starting if there are no graphs configured.
* Fixed bug in bytecode `Bindings` where calling `of()` prior to calling a child traversal in the same parent would cause the initial binding to be lost.
* Established a default read and write timeout for the `TornadoTransport` in Python, allowing it to be configurable.
* Delegated handling of erroneous response to the worker thread pool instead of event loop thread pool in Java Driver.
* Removed `Connection` from `Connection Pool` when server closes a connection with no pending requests in Java Driver.
* Improved initialization time of Java Driver if the default serializer is replaced.
* Deprecated `withGraph()` in favor of `withEmbedded()` on `AnonymousTraversalSource`.
* Added support for per-request level configurations, like timeouts, in .NET, Python and Javascript.
* Fixed bug in Javascript `Translator` that wasn't handling child traversals well.
* Prevented Gremlin Python sugar from being confused by Python magic methods.
* Allowed Gremlin Python sugar calls from anonymous context.
* Implemented `AutoCloseable` on `MultiIterator`.
* Fixed an iterator leak in `HasContainer`.
* Fixed bug in `:bytecode` command preventing translations with whitespace from working properly.
* Added `reset` and `config` options to the `:bytecode` command to allow for greater customization options.
* Added GraphSON extension module and the `TinkerIoRegistry` to the default `GraphSONMapper` configuration used by the `:bytecode` command.
* Added `GremlinASTChecker` to provide a way to extract properties of scripts before doing an actual `eval()`.
* Avoided creating unnecessary detached objects in JVM.
* Added support for `TraversalStrategy` usage in Javascript.
* Added `Traversal.getTraverserSetSupplier()` to allow providers to supply their own `TraverserSet` instances.
* Release server threads waiting on connection if the connection is dead.
* Fixed bug where server closes HTTP connection on request error even if keep alive is set to true.
* Deprecated driver `Channelizer` keep-alive related methods.
* Delegate handling of WebSocket handshake to Netty instead of custom code in Java Driver.
* Delegate detection of idle connection to Netty instead of custom keep alive logic for `WebSocketChannelizer`.
* Added support for WebSocket frame compression extension ( [RFC7692](https://tools.ietf.org/html/rfc7692) ) for `WebSocketChannelizer` in Java/Python driver.
* Added server support for WebSocket compression extension ( [RFC7692](https://tools.ietf.org/html/rfc7692) ).
* Fixed bug with Bytecode serialization when `Bytecode.toString()` is used in Javascript.
* Fixed "toString" for P and TextP to produce valid script representation from bytecode glv steps containing a string predicate in Javascript.
* Fixed a bug which could cause Java driver to hang when using `ResultSet.statusAttributes()`
* Added a listener to javascript's `DriverRemoteConnection` to find note errors from websocket connection setup.
* Fixed bug with `ReservedVerificationStrategy.getConfiguration()` which was omitting the reserved `keys` value.
* Changed all configuration keys on `AbstractWarningVerificationStrategy` implementations to `public`.
* Deprecated `BytecodeUtil` and merged its functionality to the existing `BytecodeHelper`.
* Added configuring implementation in HasStep
* Remove static initialization for `GraphSONMessageSerializerV1d0` and `GraphSONMessageSerializerV1d0` in Java driver.
* Connections to the server in a connection pool are created in parallel instead of serially in Java Driver.
* Connection pools for multiple endpoints are created in parallel instead of serially in Java Driver.
* Introduced new HostNotAvailable exception to represent cases when no server with active connection is available.
* Don't wait for new requests during shutdown of event loop group in Java Driver.

==== Bugs

* TINKERPOP-2364 Injected ProfileStep should not be displayed in child traversals
* TINKERPOP-2369 Connections in ConnectionPool are not replaced in background when underlying channel is closed
* TINKERPOP-2403 Gremlin javascript Translator does not handle child traversals
* TINKERPOP-2405 gremlinpython: traversal hangs when the connection is established but the servers stops responding later
* TINKERPOP-2408 Iterator leak in HasContainer
* TINKERPOP-2409 js: DriverRemoteConnection never times out if server uri not available.
* TINKERPOP-2410 Free up server threads when client is closed
* TINKERPOP-2425 Server closes HTTP connection for keepAlive as true
* TINKERPOP-2432 Generate correct toString() representation of bytecode in Javascript
* TINKERPOP-2433 typo in javadocs match() Type Parameters
* TINKERPOP-2435 Gremlin Python sugar syntax for values() can lead to unexpected problems
* TINKERPOP-2437 gremlin-driver hangs if ResultSet.statusAttributes().get() is called when the request throws
* TINKERPOP-2439 P and TextP toString() is broken
* TINKERPOP-2458 Bytecode Bindings lost when followed by a child traversal
* TINKERPOP-2465 TestHelper.generateTempFileFromResource file handling is invalid on windows
* TINKERPOP-2475 Barrier step touches one more element of next loop
* TINKERPOP-2478 Console byte code translator has issues with "new Date()"

==== Improvements

* TINKERPOP-2001 Support lambdas in Javascript
* TINKERPOP-2054 Support TraversalStrategy specification in gremlin-javascript
* TINKERPOP-2296 Per query timeout not working from Python
* TINKERPOP-2392 Improve module level documentation for GLVs
* TINKERPOP-2396 TraverserSet should be extendable for GraphDB provider
* TINKERPOP-2397 Don't create the default Gyro serializer if the caller specifies a different one
* TINKERPOP-2401 Upgrade Jackson-databind to 2.11.x
* TINKERPOP-2406 Delegate processing from event loop to worker threads
* TINKERPOP-2412 Add missing query tests
* TINKERPOP-2413 Prefer withEmbedded() to withGraph() on AnonymousTraversalSource
* TINKERPOP-2415 Avoid unnecessary detached objects if not required
* TINKERPOP-2416 MultiIterator should implement AutoCloseable
* TINKERPOP-2420 Support per query request options in .NET
* TINKERPOP-2421 Support per query options in javascript
* TINKERPOP-2426 Use Netty's WebSocketClientProtocolHandler
* TINKERPOP-2427 Simplify Netty reference counting
* TINKERPOP-2430 Looping Recipies
* TINKERPOP-2431 Operating on Dropped Elements Recipes
* TINKERPOP-2436 The gremlin server starts even if all graphs instantiation has failed
* TINKERPOP-2438 Provide a way for scripts to respect with() specification of timeout
* TINKERPOP-2440 Simplify driver by delegating keepAlive logic to Netty
* TINKERPOP-2441 Add compression to WebSocket frames sent from client
* TINKERPOP-2442 Make Translators that work in Java part of gremlin-core
* TINKERPOP-2445 Speed up client initialization *(breaking)*
* TINKERPOP-2446 Add Recipe for Optional Looping
* TINKERPOP-2453 Add WebSocket compression to gremlin-python
* TINKERPOP-2461 Align CoreImports with GroovyTranslator
* TINKERPOP-2462 Duplicated BytecodeUtil and BytecodeHelper classes
* TINKERPOP-2466 Improve syntax for Groovy scripts that use withStrategies()
* TINKERPOP-2468 Stabilize shouldProcessSessionRequestsInOrder() test
* TINKERPOP-2469 KrbException - Principal does not exist in test
* TINKERPOP-2474 withSack() Groovy translation output could be simplified
* TINKERPOP-2479 Provide a way to set a custom GraphSONMapper for :bytecode command
* TINKERPOP-2482 Rename wsConnectionTimeout to connectionSetupTimeout

[[release-3-4-8]]
=== TinkerPop 3.4.8 (Release Date: August 3, 2020)

* Fixed bug in `has(T,Traversal)` where results were not being returned.
* Fixed bug in `select(Traversal)` where side-effects were getting lost if accessed from the child traversal.
* Fixed authorization bug when using `WsAndHttpChannelizerHandler` with keep-alive enabled.
* Fixed bug in option-less construction of `DriverRemoteConnection` in Javascript.
* Bumped Jackson to 2.9.10.5.
* Improved sampling distribution for global scope `sample()` operations.

==== Bugs

* TINKERPOP-2288 Get ConnectionPoolBusyException and then ServerUnavailableExceptions
* TINKERPOP-2352 Gremlin Python driver default pool size makes Gremlin keep-alive difficult
* TINKERPOP-2374 SaslAndHttpBasicAuthenticationHandler can't extract authorization
* TINKERPOP-2383 has(T,Traversal) does not return results
* TINKERPOP-2384 Inject and withSideEffect causing different outcomes in order step

==== Improvements

* TINKERPOP-2328 Do not close all connections if just one has became closed
* TINKERPOP-2376 Probability distribution controlled by weight when using sample step

[[release-3-4-7]]
=== TinkerPop 3.4.7 (Release Date: June 1, 2020)

This release also includes changes from <<./changelog-3.3.x.asciidoc#release-3-3-11, 3.3.11>>.

* Gremlin.NET driver: Fixed a `NullReferenceException` and throw clear exception if received message is empty.
* Bumped to Groovy 2.5.11.
* Modified `ImportGremlinPlugin` to allow for field imports.
* Improved error message for `math()` when the selected key in a `Map` is `null` or not a `Number`.
* Added `:cls` command to Gremlin Console to clear the screen.
* Bumped Netty 4.1.49.

==== Bugs

* TINKERPOP-2192 Gremlin.Net.Driver.Connection.Parse throws a NullReferenceException
* TINKERPOP-2345 NullPointerException when Map key is not found for math()
* TINKERPOP-2347 Remove invalid service descriptors from gremlin-shaded
* TINKERPOP-2350 clone() is not deep copying Traversal internals
* TINKERPOP-2351 Local Map ordering of keys can generate cast errors
* TINKERPOP-2353 Error while Shutting Down Gremlin Server
* TINKERPOP-2355 Jackson-databind version in Gremlin shaded dependency needs to be increased  - introduces vulnerability issues
* TINKERPOP-2360 failed to deserializer int32 when gremlin-python submit bytecode with a big int value
* TINKERPOP-2365 LazyBarrierStrategy adds a NoOpBarrierStep when profile() is present
* TINKERPOP-2368 JAVA_OPTIONS are not properly expanded in gremlin-console

==== Improvements

* TINKERPOP-2215 Better exception message for connection problems
* TINKERPOP-2336 Allow close of channel without having to wait for server
* TINKERPOP-2339 Gremlin.Net: Update System.Net.WebSockets.Client dependency
* TINKERPOP-2354 Document recommendation to reuse graph traversal source
* TINKERPOP-2357 Add a command to clear the Gremlin Console screen
* TINKERPOP-2371 Add possibility to import constants with ImportGremlinPlugin

[[release-3-4-6]]
=== TinkerPop 3.4.6 (Release Date: February 20, 2020)

* Fixed bug in `drop()` of properties which was introduced in 3.4.5.

==== Bugs

* TINKERPOP-2338 drop() not removing all edge/meta properties

[[release-3-4-5]]
=== TinkerPop 3.4.5 (Release Date: February 3, 2020)

This release also includes changes from <<./changelog-3.3.x.asciidoc#release-3-3-10, 3.3.10>>.

* Expanded the use of `by(String)` modulator so that it can work on `Map` as well as `Element`.
* Improved error messaging for `by(String)` so that it is more clear as to what the problem is
* Bumped to Netty 4.1.42
* Improved SPARQL query translation to better allow for index optimizations during execution.
* Improved Gremlin Server websocket handling preventing automatic server close of the channel for protocol errors.
* Introduced internal `Buffer` API as a way to wrap Netty's Buffer API and moved `GraphBinaryReader`, `GraphBinaryWriter` and `TypeSerializer<T>` to `gremlin-core`.
* Unified the behavior of property comparison: only compare key&value.
* Supported `hasKey()` and `hasValue()` step for edge property and meta property, like `g.E().properties().hasKey('xx')`.
* Modified driver to send `overrideRequestId` and `userAgent` to server when they are present in `RequestOptions` for bytecode requests.

==== Bugs

* TINKERPOP-2175 Executor thread is not returned on channel close
* TINKERPOP-2266 Keep alive not started at connection creation
* TINKERPOP-2274 Test of TinkerGraph Gremlin fail on Windows and non EN locale
* TINKERPOP-2318 Edge properties dedup() not work with spark-gremlin *(breaking)*
* TINKERPOP-2332 JavaScript GLV: structure element toString() should internally call toString()
* TINKERPOP-2333 JavaScript GLV: GraphSON2/3 Edge deserialization is invalid

==== Improvements

* TINKERPOP-1733 hasKey, hasValues should work on Element and Property
* TINKERPOP-2262 Improve Netty protocol handling
* TINKERPOP-2305 GraphBinary: Wrap Buffer API
* TINKERPOP-2307 Add better error message for badly configured Channelizer
* TINKERPOP-2309 Bump gremlinpython to Tornado 5.x
* TINKERPOP-2314 Employ by(String) for Map when possible and improve errors around incorrect types
* TINKERPOP-2315 Implement some form of clone() or reset() for Traversal in GLVs
* TINKERPOP-2320 [SECURITY] XMLInputFactory initialization in GraphMLReader introduces
* TINKERPOP-2322 Deprecate Jython support
* TINKERPOP-2324 Deprecate the raw NIO support in the Java driver
* TINKERPOP-2325 Generate traversals that will better yield index lookups with SPARQL
* TINKERPOP-2329 JavaScript GLV: Update websocket library dependency
* TINKERPOP-2330 JavaScript GLV should expose GraphSON2Writer and GraphSONReader

[[release-3-4-4]]
=== TinkerPop 3.4.4 (Release Date: October 14, 2019)

This release also includes changes from <<./changelog-3.3.x.asciidoc#release-3-3-9, 3.3.9>>.

* Provided support for DSLs by way of remote connections through `AnonymousTraversalSource`.
* Added `elementMap()` step.
* Added GraphBinary support for Python.
* Allowed for embedded map assertions in GLV tests.
* Added `Direction` deserialization support in GLVs.

==== Bugs

* TINKERPOP-2159 EventStrategy doesn't handle multi-valued properties
* TINKERPOP-2276 No constructor for remote connection in DSL generated traversal source
* TINKERPOP-2283 GraphStep's ids null exception
* TINKERPOP-2285 Error object is unreachable
* TINKERPOP-2289 Use address instead of hostname for connection
* TINKERPOP-2290 Javascript GLV connection refused error handling
* TINKERPOP-2291 TraversalExplanation deserialization in GraphSON
* TINKERPOP-2298 Bytecode.java  flattenArguments throw exception when null
* TINKERPOP-2303 GremlinDsl generate addV instead of addE

==== Improvements

* TINKERPOP-1810 Add Lambda.binaryOperator and Lambda.unaryOperator
* TINKERPOP-1838 Python sample script
* TINKERPOP-2046 Gremlin-Python: Support custom request headers in WebSocket request
* TINKERPOP-2213 Replace scriptEvaluationTimeout in favor of something more suitable to bytecode
* TINKERPOP-2275 Update jackson databind 2.9.9.3+
* TINKERPOP-2277 Python sdk postpone the timing to create transport
* TINKERPOP-2279 GraphBinary support in Python
* TINKERPOP-2280 Prevent use of T values as property key overloads
* TINKERPOP-2284 Make it easier to return more structure of graph elements
* TINKERPOP-2302 Add isOnGraphComputer() field accessor to ElementMapStep

[[release-3-4-3]]
=== TinkerPop 3.4.3 (Release Date: August 5, 2019)

This release also includes changes from <<./changelog-3.3.x.asciidoc#release-3-3-8, 3.3.8>>.

* Improved error messaging on timeouts returned to the console from `:>`.
* Added a `toString()` serializer for GraphBinary.
* Configured the Gremlin Console to use GraphBinary by default.
* Fixed transaction management for empty iterators in Gremlin Server.
* Deprecated `MessageSerializer` implementations for Gryo in Gremlin Server.
* Deprecated `Serializers` enum values of `GRYO_V1D0` and `GRYO_V3D0`.
* Deprecated `SerTokens` values of `MIME_GRYO_V1D0` and `MIME_GRYO_V3D0`.
* Added a Docker command to start Gremlin Server with the standard GLV test configurations.
* Added `aggregate(Scope,String)` and deprecated `store()` in favor of `aggregate(local)`.
* Modified `NumberHelper` to better ignore `Double.NaN` in `min()` and `max()` comparisons.
* Bumped to Netty 4.1.36.
* Bumped to Groovy 2.5.7.
* Added `userAgent` to RequestOptions. Gremlin Console sends `Gremlin Console/<version>` as the `userAgent`.
* Fixed DriverRemoteConnection ignoring `with` `Token` options when multiple were set.
* Added `:set warnings <true|false>` to Gremlin Console.

==== Bugs

* TINKERPOP-1619 TinkerGraphComputer worker count affects OptionalStep query results
* TINKERPOP-2157 SparkStarBarrierInterceptor injects (Byte) 0
* TINKERPOP-2224 Detect and fix resource leak
* TINKERPOP-2230 match() step unexpected behaviours
* TINKERPOP-2232 RemoteStrategy does not call parent class TraversalStrategy __init__
* TINKERPOP-2238 Fix remaining iterator leaks marked by @IgnoreIteratorLeak
* TINKERPOP-2241 Client exception don't match Server exception when server  throw StackOverflowError
* TINKERPOP-2248 Instability of driver for blocked requests
* TINKERPOP-2257 transaction itty  may still be visited after commit
* TINKERPOP-2264 Gremlin Python should deserialize g:Date to UTC

==== Improvements

* TINKERPOP-1084 Branch option tokens should be allowed to be traversals.
* TINKERPOP-1553 Deprecate store() in favor of aggregate(Scope)
* TINKERPOP-1921 Support hasNext terminal step in GLVs
* TINKERPOP-2020 Support withComputer() for javascript
* TINKERPOP-2223 Update jackson databind to 2.9.9
* TINKERPOP-2236 Improve error messaging for TinkerGraph IdManagers that fail on conversions
* TINKERPOP-2237 Prevent error when closing sessions that don't exist *(breaking)*
* TINKERPOP-2242 Bump to netty 4.1.36
* TINKERPOP-2243 Add user-agent to RequestOptions
* TINKERPOP-2246 Consolidate the error propagation to the client
* TINKERPOP-2250 Support toString serialization in GraphBinary
* TINKERPOP-2256 processAllStarts of AggregateStep should only be called when barrier is empty
* TINKERPOP-2260 Update jackson databind 2.9.9.1
* TINKERPOP-2265 Deprecate Traversal.getSideEffects() functionality for remoting purposes
* TINKERPOP-2270 Deprecate multi/metaproperty support in Neo4j
* TINKERPOP-2271 Add console preference to control server-originated warning display
* TINKERPOP-2272 Rename steps and tokens that conflict with standard python functions

[[release-3-4-2]]
=== TinkerPop 3.4.2 (Release Date: May 28, 2019)

This release also includes changes from <<./changelog-3.3.x.asciidoc#release-3-3-7, 3.3.7>>.

* Allow a `Traversal` to know what `TraversalSource` it spawned from.
* Fixed problem with connection pool sizing and retry.
* Added status attribute for warnings to be returned to the client.
* Modified Gremlin Console to report warning status attributes.
* Changed `:>` in Gremlin Console to submit the client-side timeout on each request.
* Provided method to override the request identifier with `RequestOptions`.
* Added option to set per-request settings on a `Traversal` submitted via `Bytecode`.
* Fixed the Gryo registration for `OptionsStrategy` as it was not serializing state properly.

==== Bugs

* TINKERPOP-2090 After running backend for a day or so System.IO.IOException keep throwing
* TINKERPOP-2112 Folding in property() step is not being optimally performed
* TINKERPOP-2180 gremlin.sh doesn't work when directories contain spaces
* TINKERPOP-2183 InterpreterModeASTTransformation needs to be more specific about what it transforms
* TINKERPOP-2189 ConnectedComponent test assumes fixed order of vertices
* TINKERPOP-2194 Enforcing an order on properties in one test method of ChooseTest
* TINKERPOP-2196 PartitionStrategy with includeMetaProperties(true) can't add labeled vertex
* TINKERPOP-2198 Documentation for Store contradicts itself
* TINKERPOP-2199 within step does not work with more than two parameters with python
* TINKERPOP-2200 AddEdgeStartStep used DetachedFactory.detach instead of EventStrategy.detach
* TINKERPOP-2204 Client receives no response on failed request
* TINKERPOP-2206 Certain types in javascript don't appear to serialize with a GraphSON type
* TINKERPOP-2212 Path is not detaching properly under certain conditions
* TINKERPOP-2217 Race condition in Gremlin.net driver connection

==== Improvements

* TINKERPOP-2089 Javascript DSL support
* TINKERPOP-2179 Have o.a.t.g.driver.ser.SerializationException extend IOException
* TINKERPOP-2181 Allow ctrl+c to break out of a long running process in Gremlin Console
* TINKERPOP-2182 Remove gperfutils from Gremlin Console *(breaking)*
* TINKERPOP-2190 Document Gremlin sanitization best practices
* TINKERPOP-2191 Implement EdgeLabelVerificationStrategy
* TINKERPOP-2193 Allow a Traversal to know what TraversalSource it spawned from
* TINKERPOP-2203 Bind the console timeout to the request timeout
* TINKERPOP-2208 Include inject() in DSLs generated with Java annotation processor
* TINKERPOP-2211 Provide API to add per request option for a bytecode
* TINKERPOP-2216 Consider adding conventional status attribute key for warnings
* TINKERPOP-2219 Upgrade Netty version

[[release-3-4-1]]
=== TinkerPop 3.4.1 (Release Date: March 18, 2019)

This release also includes changes from <<./changelog-3.3.x.asciidoc#release-3-3-6, 3.3.6>>.

* Gremlin.NET driver: Fixed removal of closed connections and added round-robin scheduling.
* Added GraphBinary serializer for TraversalMetrics
* Added registration for `SparqlStrategy` for GraphSON.
* Fixed up `SparqlStrategy` so that it could be used properly with `RemoteStrategy`.
* Fixed `ByteBuffer` serialization for GraphBinary.
* Fixed `Path.toString()` in `gremlin-javascript` which was referencing an invalid object.
* Fixed potential for an infinite loop in connection creation for `gremlin-dotnet`.
* Added fallback resolver to `TypeSerializerRegistry` for GraphBinary.
* Added easier to understand exceptions for connection problems in the Gremlin.Net driver.
* Support configuring the type registry builder for GraphBinary.
* Bumped to Groovy 2.5.6.
* Release working buffers in case of failure for GraphBinary.
* GraphBinary: Use the same `ByteBuf` instance to write during serialization. Changed signature of write methods in type serializers.
* Remove unused parameter in GraphBinary's `ResponseMessageSerializer`.
* Changed `SparqlTraversalSource` so as to enable Gremlin steps to be used to process results from the `sparql()` step.
* GraphBinary: Cache expression to obtain the method in `PSerializer`.

==== Bugs

* TINKERPOP-1992 count has negative time in profile
* TINKERPOP-2126 toString() methods not thread-safe
* TINKERPOP-2135 Gremlin.Net ConnectionPool doesn't handle closed idle connections properly
* TINKERPOP-2139 Errors during request serialization in WebSocketGremlinRequestEncoder/NioGremlinRequestEncoder are not reported to the client
* TINKERPOP-2141 ByteBufferSerializer modifies buffer's position
* TINKERPOP-2148 "no connection available!" is being thrown despite lots of free connections
* TINKERPOP-2152 Path toString fails in Gremlin JavaScript
* TINKERPOP-2153 Remove unused parameter from ResponseMessageSerializer *(breaking)*
* TINKERPOP-2154 GraphBinary: Serializers should release resources in case of failures
* TINKERPOP-2155 Situation can occur that causes infinite amount of connection to be opened, causing System.Net.WebSockets.WebSocketException
* TINKERPOP-2161 GraphBinary: Write serialization performance issue
* TINKERPOP-2169 Responses exceeding maxContentLength cause subsequent queries to hang
* TINKERPOP-2172 PartitionStrategy doesn't apply to AddEdgeStartStep
* TINKERPOP-2173 Incorrect reset of log level in integration test
* TINKERPOP-2177 Streaming response immediately after authentication stops after first partial response

==== Improvements

* TINKERPOP-1435 Support for extended GraphSON in gremlin-python
* TINKERPOP-1882 Apply range and limit steps as early as possible
* TINKERPOP-1998 IoGraphTest use different schemas for standard and readGraph configurations
* TINKERPOP-2088 Enable SourceLink for Gremlin.Net
* TINKERPOP-2098 Improve gremlin-server.sh help output
* TINKERPOP-2122 Expose status codes from server errors
* TINKERPOP-2124 InlineFilterStrategy produces wrong result
* TINKERPOP-2125 Extend release validation script
* TINKERPOP-2127 Add g:TraversalMetrics and g:Metrics deserializers for gremlinpython
* TINKERPOP-2129 Mask security secret or password in logs
* TINKERPOP-2130 Cannot instantiate DriverRemoteConnection without passing an options object
* TINKERPOP-2131 NoConnectionAvailableException doesn't reveal the reason
* TINKERPOP-2134 Bump to Groovy 2.5.6
* TINKERPOP-2136 Inside lower bound inclusion (documentation)
* TINKERPOP-2138 Provide a configuration to disable the global closure cache
* TINKERPOP-2140 Test build with Docker automatically
* TINKERPOP-2144 Better handle Authenticator instance failures
* TINKERPOP-2147 Add GraphBinary serializer for TraversalMetrics
* TINKERPOP-2149 GraphBinary: Make type serializer resolution pluggable
* TINKERPOP-2150 GraphBinary: Support configuring the TypeSerializerRegistry builder class in config
* TINKERPOP-2163 JavaTranslator performance enhancements
* TINKERPOP-2164 Bytecode's hashCode impl (and its inner classes) can produce hash collisions
* TINKERPOP-2165 Prefer commons-lang3 to commons-lang
* TINKERPOP-2166 GraphBinary: P deserialization should be optimized
* TINKERPOP-2167 Gremlin Javascript Traversal as async iterable
* TINKERPOP-2171 Allow SPARQL to be extended with Gremlin steps
* TINKERPOP-2174 Improve Docker Image Security

[[release-3-4-0]]
=== TinkerPop 3.4.0 (Release Date: January 2, 2019)

This release also includes changes from <<./changelog-3.3.x.asciidoc#release-3-3-4, 3.3.4>> and <<./changelog-3.3.x.asciidoc#release-3-3-5, 3.3.5>>.

* Changed Python "bindings" to use an actual `Bindings` object rather than a 2-tuple.
* Improved the Gremlin.NET driver: It now uses request pipelining and its `ConnectionPool` has a fixed size.
* Implemented `IndexStep` which allows to transform local collections into indexed collections or maps.
* Made `valueMap()` aware of `by` and `with` modulators and deprecated `valueMap(boolean)` overloads.
* Use `Compare.eq` in `Contains` predicates to ensure the same filter behavior for numeric values.
* Added `OptionsStrategy` to allow traversals to take arbitrary traversal-wide configurations.
* Added text predicates.
* Added `BulkSet` as a GraphSON type with support in all language variants.
* Added `ReferenceElementStrategy` to auto-detach elements to "reference" from a traversal.
* Added initial release of the GraphBinary serialization format with Java support.
* Allowed `ImportCustomizer` to accept fields.
* Removed groovy-sql dependency.
* Modified `Mutating` steps so that they are no longer marked as `final`.
* Rewrote `ConnectiveStrategy` to support an arbitrary number of infix notations in a single traversal.
* GraphSON `MessageSerializer` s will automatically register the GremlinServerModule to a provided GraphSONMapper.
* Removed support for `-i` option in Gremlin Server which was previously deprecated.
* Implemented `ShortestPathVertexProgram` and the `shortestPath()` step.
* `AbstractGraphProvider` uses `g.io()` for loading test data.
* Added the `io()` start step and `read()` and `write()` termination steps to the Gremlin language.
* Added `GraphFeatures.supportsIoRead()` and `GraphFeatures.supportsIoWrite()`.
* Deprecated `Graph.io()` and related infrastructure.
* `GraphMLReader` better handles edge and vertex properties with the same name.
* Maintained order of annotations in metrics returned from `profile()`-step.
* Refactored `TypeTranslator` to be directly extensible for `ScriptTranslator` functions.
* Bumped to Netty 4.1.25.
* Bumped to Spark 2.4.0.
* Bumped to Groovy 2.5.4.
* Modified Gremlin Server to return a "host" status attribute on responses.
* Added ability to the Java, .NET, Python and JavaScript drivers to retrieve status attributes returned from the server.
* Modified Java and Gremlin.Net `ResponseException` to include status code and status attributes.
* Modified Python `GremlinServerError` to include status attributes.
* Modified the return type for `IGremlinClient.SubmitAsync()` to be a `ResultSet` rather than an `IReadOnlyCollection`.
* Deprecated two `submit()`-related methods on the Java driver `Client` class.
* Added `Client.submit()` overloads that accept per-request `RequestOptions`.
* Added sparql-gremlin.
* Fixed a bug in dynamic Gryo registration where registrations that did not have serializers would fail.
* Moved `Parameterizing` interface to the `org.apache.tinkerpop.gremlin.process.traversal.step` package with other marker interfaces of its type.
* Replaced `Parameterizing.addPropertyMutations()` with `Configuring.configure()`.
* Changed interface hierarchy for `Parameterizing` and `Mutating` interfaces as they are tightly related.
* Introduced the `with(k,v)` and `with(k)` step modulators which can supply configuration options to `Configuring` steps.
* Added `OptionsStrategy` to allow traversals to take arbitrary traversal-wide configurations.
* Introduced the `with(k,v)` and `with(k)` traveral source configuration options which can supply configuration options to the traversal.
* Added `connectedComponent()` step and related `VertexProgram`.
* Added `supportsUpsert()` option to `VertexFeatures` and `EdgeFeatures`.
* `min()` and `max()` now support all types implementing `Comparable`.
* Change the `toString()` of `Path` to be standardized as other graph elements are.
* `hadoop-gremlin` no longer generates a test artifact.
* Allowed `GraphProvider` to expose a cached `Graph.Feature` object so that the test suite could re-use them to speed test runs.
* Fixed a bug in `ReducingBarrierStep`, that returned the provided seed value despite no elements being available.
* Changed the order of `select()` scopes. The order is now: maps, side-effects, paths.
* Moved `TraversalEngine` to `gremlin-test` as it has long been only used in testing infrastructure.
* Nested loop support added allowing `repeat()` steps to be nested.
* Events from `EventStrategy` raised from "new" mutations will now return a `KeyedVertexProperty` or `KeyedProperty` as is appropriate.
* `MutationListener#vertexPropertyChanged(Vertex, VertexProperty, Object, Object...)` no longer has a default implementation.
* Deprecated `GraphSONMessageSerializerV2d0` as it is now analogous to `GraphSONMessageSerializerGremlinV2d0`.
* Moved previously deprecated `RemoteGraph` to `gremlin-test` as it is now just a testing component.
* Removed previously deprecated `RemoteStrategy.instance()` and the strategy no longer has any connection to `RemoteGraph`.
* Removed previously deprecated methods in `SubgraphStrategy` and `PartitionStrategy` builders.
* Removed previously deprecated Credentials DSL infrastructure.
* Removed previously deprecated `RemoteConnection#submit(Traversal)` and `RemoteConnection#submit(Bytecode)` methods.
* Removed previously deprecated `MutationListener#vertexPropertyChanged(Vertex, Property, Object, Object...)`.
* Removed previously deprecated `OpSelectorHandler` constructor.
* Removed previously deprecated `close()` from `GremlinGroovyScriptEngine` which no longer implements `AutoCloseable`.
* Removed previously deprecated `getGraphInputFormat()` and `getGraphOutputFormat()` from `HadoopConfiguration`.
* Removed previously deprecated `AbstractOpProcessor#makeFrame()` method.
* Removed previously deprecated `AuthenticationSettings.className` configuration option in Gremlin Server.
* Removed previously deprecated `GraphManager` methods `getGraphs()` and `getTraversalSources()`.
* Removed previously deprecated Gremlin Server setting for `serializedResponseTimeout`.
* Removed previously deprecated Structure API exceptions related to "element not found" situations.
* Removed previously deprecated `rebindings` options from the Java driver API.
* Removed previously deprecated `LambdaCollectingBarrierStep.Consumers` enum.
* Removed previously deprecated `HasContainer#makeHasContainers(String, P)`
* Removed support for Giraph.
* Removed previously deprecated JavaScript Driver property `traversers` of the `ResultSet`.
* gremlin-python: use explicit Bindings object for python instead of a 2-tuple

==== Bugs

* TINKERPOP-1777 Gremlin .max step returns -2147483648 for empty result sets *(breaking)*
* TINKERPOP-1869 Profile step and iterate do not play nicely with each other
* TINKERPOP-1898 Issue with bindings in strategies and lambdas
* TINKERPOP-1927 Gherkin scenario expects list with duplicates, but receives g:Set
* TINKERPOP-1933 gremlin-python maximum recursion depth exceeded on large responses
* TINKERPOP-1947 Path history isn't preserved for keys in mutations
* TINKERPOP-1949 Formatting error on website
* TINKERPOP-1958 TinkerGraphCountStrategy can return wrong counts
* TINKERPOP-1961 Duplicate copies of images directory in docs
* TINKERPOP-1962 GroovyTranslator doesn't handle empty maps
* TINKERPOP-1963 Use of reducing step in choose()
* TINKERPOP-1972 inject() tests are throwing exceptions in .NET GLV tests
* TINKERPOP-1978 Check for Websocket connection state when retrieved from Connection Pool missing
* TINKERPOP-1979 Several OLAP issues in MathStep
* TINKERPOP-1988 minor error in documentation
* TINKERPOP-1999 [Java][gremlin-driver] Query to a remote server via the websocket client hangs indefinitely if the server becomes unavailable
* TINKERPOP-2005 Intermittent NullPointerException in response handling
* TINKERPOP-2006 GraphML serialization invalid if a vertex and edge have similar named property
* TINKERPOP-2009 Pick.any and Pick.none should be exposed in Gremlin-JavaScript
* TINKERPOP-2021 Prevent maximum recursion depth failure
* TINKERPOP-2028 AbstractGraphSONMessageSerializerV2d0 should register GremlinServerModule when mapper is provided
* TINKERPOP-2029 ConcurrentModificationException for InlineFilterStrategy
* TINKERPOP-2030 KeepAlive task executed for every Connection.write call
* TINKERPOP-2032 Update jython-standalone
* TINKERPOP-2044 Cannot reconnect to Azure cosmos host that becomes available again
* TINKERPOP-2058 Contains predicates should rely on Compare predicates *(breaking)*
* TINKERPOP-2081 PersistedOutputRDD materialises rdd lazily with Spark 2.x
* TINKERPOP-2091 Wrong/Missing feature requirements in StructureStandardTestSuite
* TINKERPOP-2094 Gremlin Driver Cluster Builder serializer method does not use mimeType as suggested
* TINKERPOP-2095 GroupStep looks for irrelevant barrier steps
* TINKERPOP-2096 gremlinpython: AttributeError when connection is closed before result is received
* TINKERPOP-2100 coalesce() creating unexpected results when used with order()
* TINKERPOP-2113 P.Within() doesn't work when given a List argument

==== Improvements

* TINKERPOP-550 Gremlin IO needs to support both OLTP and OLAP naturally.
* TINKERPOP-967 Support nested-repeat() structures
* TINKERPOP-1113 GraphComputer subclasses should support native methods
* TINKERPOP-1143 Remove deprecated TraversalSource.Builder and TraversalEngine. *(breaking)*
* TINKERPOP-1296 Remove deprecated serializedResponseTimeout from Gremlin Server *(breaking)*
* TINKERPOP-1342 Allow setting scriptEvaluationTimeout in driver
* TINKERPOP-1365 Log the seed used to initialize Random in tests
* TINKERPOP-1410 mvn install -Dmaven.test.skip=true doesn't work on a clean machine *(breaking)*
* TINKERPOP-1446 Add a StringFactory for Path which prefixes with type.
* TINKERPOP-1447 Add some JavaScript intelligence to the documentation so that comments and output are not copied in a copy paste
* TINKERPOP-1494 Means of exposing execution information from a result produced by RemoteConnection
* TINKERPOP-1518 Provide a way for providers to expose static Graph.Features to tests
* TINKERPOP-1522 Order of select() scopes *(breaking)*
* TINKERPOP-1595 Go through TraversalVertexProgram with a profile and optimize.
* TINKERPOP-1628 Implement TraversalSelectStep
* TINKERPOP-1685 Introduce optional feature to allow for upserts without read-before-write
* TINKERPOP-1705 Remove deprecated rebindings option *(breaking)*
* TINKERPOP-1707 Remove deprecated AuthenticationSettings.className option *(breaking)*
* TINKERPOP-1755 No docs for ReferenceElements
* TINKERPOP-1769 Python graph[empty] string representation is confusing
* TINKERPOP-1774 Gremlin .NET: Support min and max sizes in Connection pool
* TINKERPOP-1775 Gremlin .NET: Implement a Connection write queue to support request pipelining
* TINKERPOP-1778 Do not promote timedInterrupt option for Gremlin Server script processing
* TINKERPOP-1780 Add authentication tests for gremlin-python
* TINKERPOP-1831 Refactor EventStrategy  *(breaking)*
* TINKERPOP-1836 .NET sample project
* TINKERPOP-1841 Include Python GLV tests on TravisCI
* TINKERPOP-1849 Provide a way to fold() with an index
* TINKERPOP-1864 Gremlin Python tests for GraphSON 2.0 and 3.0
* TINKERPOP-1878 Sparql to Gremlin Compiler
* TINKERPOP-1888 Extend max and min to all Comparable properties, not just Numbers *(breaking)*
* TINKERPOP-1889 JavaScript GLV: Use heartbeat to prevent connection timeout
* TINKERPOP-1897 Provide Docker images of Gremlin Server and Console
* TINKERPOP-1906 Make ResponseException explorable
* TINKERPOP-1912 Remove MD5 checksums
* TINKERPOP-1913 Expose metadata from Gremlin Server to Clients
* TINKERPOP-1930 Drop support for Giraph *(breaking)*
* TINKERPOP-1934 Bump to latest version of httpclient
* TINKERPOP-1936 Performance enhancement to Bytecode deserialization
* TINKERPOP-1941 Remove deprecated Structure API exception methods *(breaking)*
* TINKERPOP-1942 Binary serialization format
* TINKERPOP-1945 Add support for extended GraphSon types to Gremlin.net
* TINKERPOP-1946 Remove the deprecated Credentials DSL infrastructure *(breaking)*
* TINKERPOP-1950 Traversal construction performance enhancements
* TINKERPOP-1951 gremlin-server.bat doesn't support paths containing spaces
* TINKERPOP-1953 Bump to Groovy 2.4.15
* TINKERPOP-1954 Remove deprecated GraphManager methods *(breaking)*
* TINKERPOP-1959 Provide a way to submit scripts to the server in gremlin-javascript
* TINKERPOP-1967 Add a connectedComponent() step
* TINKERPOP-1968 Refactor elements of Gremlin Server testing
* TINKERPOP-1975 Introduce with() step modulator *(breaking)*
* TINKERPOP-1976 Include Computer tests for GLVs
* TINKERPOP-1977 Gremlin-JavaScript: Support SASL authentication
* TINKERPOP-1984 Allow support for multiple serializer versions in Gremlin Server HTTP *(breaking)*
* TINKERPOP-1985 Update position on bulk loading
* TINKERPOP-1986 Remove deprecation from PartitionStrategy, SubgraphStrategy and GremlinScriptEngine *(breaking)*
* TINKERPOP-1987 Bump to Netty 4.1.x
* TINKERPOP-1989 Preserve order that plugins are applied in Gremlin Console
* TINKERPOP-1990 Add a shortestPath() step
* TINKERPOP-1993 Bump to Spark 2.3.1
* TINKERPOP-1995 DriverRemoteConnection close() method returns undefined
* TINKERPOP-1996 Introduce read() and write() steps
* TINKERPOP-2002 Create a blog post explaining the value of using TinkerPop
* TINKERPOP-2010 Generate jsdoc for gremlin-javascript
* TINKERPOP-2011 Use NumberHelper on choose()
* TINKERPOP-2012 Target .NET Standard 2.0 for Gremlin.Net
* TINKERPOP-2013 Process tests that are auto-ignored stink
* TINKERPOP-2015 Allow users to configure the WebSocket connections
* TINKERPOP-2016 Upgrade Jackson FasterXML to 2.9.5 or later to fix security vulnerability
* TINKERPOP-2017 Check for Column in by()
* TINKERPOP-2018 Generate API docs for Gremlin.Net
* TINKERPOP-2022 Cluster SSL should trust default ca certs by default
* TINKERPOP-2023 Gremlin Server should not create self-signed certs *(breaking)*
* TINKERPOP-2024 Gremlin Server Application archetype should connect via withRemote
* TINKERPOP-2025 Change to SHA-256/512 and drop SHA-1 for releases
* TINKERPOP-2026 Gremlin.Net.Driver should check ClientWebSocket.State before closing
* TINKERPOP-2031 Remove support for -i in gremlin-server.sh *(breaking)*
* TINKERPOP-2033 Maintain order of profile() annotations
* TINKERPOP-2034 Register synchronizedMap() with Gryo
* TINKERPOP-2037 Remove unused groovy-sql dependency
* TINKERPOP-2038 Make groovy script cache size configurable
* TINKERPOP-2039 Bump to Groovy 2.5.2 *(breaking)*
* TINKERPOP-2040 Improve flexibility of GroovyTranslator to handle custom types
* TINKERPOP-2041 Text Predicates
* TINKERPOP-2045 Remove non-indy groovy dependencies
* TINKERPOP-2049 Single argument with() overload
* TINKERPOP-2050 Add a :bytecode command to Gremlin Console
* TINKERPOP-2053 Provider OptionsStrategy for traversal configurations
* TINKERPOP-2055 Provide support for special number cases like Infinity in GraphSON
* TINKERPOP-2056 Use NumberHelper in Compare
* TINKERPOP-2059 Modulation of valueMap() *(breaking)*
* TINKERPOP-2060 Make Mutating steps non-final
* TINKERPOP-2061 Add with() configuration as global to a traversal
* TINKERPOP-2062 Add Traversal class to CoreImports
* TINKERPOP-2064 Add status attributes to results for gremlin-javascript
* TINKERPOP-2065 Optimize iterate() for remote traversals
* TINKERPOP-2066 Bump to Groovy 2.5.3
* TINKERPOP-2067 Allow getting raw data from Gremlin.Net.Driver.IGremlinClient
* TINKERPOP-2068 Bump Jackson Databind 2.9.7
* TINKERPOP-2069 Document configuration of Gremlin.Net
* TINKERPOP-2070 gremlin-javascript: Introduce Connection representation
* TINKERPOP-2071 gremlin-python: the graphson deserializer for g:Set should return a python set
* TINKERPOP-2072 Refactor custom type translation for ScriptTranslators *(breaking)*
* TINKERPOP-2073 Generate tabs for static code blocks
* TINKERPOP-2074 Ensure that only NuGet packages for the current version are pushed
* TINKERPOP-2075 Introduce ReferenceElementStrategy
* TINKERPOP-2077 VertexProgram.Builder should have a default create() method with no Graph
* TINKERPOP-2078 Hide use of EmptyGraph or RemoteGraph behind a more unified method for TraversalSource construction
* TINKERPOP-2079 Move RemoteGraph to test package *(breaking)*
* TINKERPOP-2084 For remote requests in console display the remote stack trace
* TINKERPOP-2092 Deprecate default GraphSON serializer fields
* TINKERPOP-2093 Bump to Groovy 2.5.4
* TINKERPOP-2097 Create a DriverRemoteConnection with an initialized Client
* TINKERPOP-2101 Support Spark 2.4
* TINKERPOP-2103 Remove deprecated submit() options on RemoteConnection *(breaking)*
* TINKERPOP-2104 Allow ImportCustomizer to handle fields
* TINKERPOP-2106 When gremlin executes timeout, throw TimeoutException instead of TraversalInterruptedException/InterruptedIOException
* TINKERPOP-2110 Allow Connection on Different Path (from /gremlin)
* TINKERPOP-2111 Add BulkSet as a GraphSON type *(breaking)*
* TINKERPOP-2114 Document common Gremlin anti-patterns
* TINKERPOP-2116 Explicit Bindings object for Python *(breaking)*
* TINKERPOP-2117 gremlin-python: Provide a better data structure for a Binding
* TINKERPOP-2119 Validate C# code samples in docs
* TINKERPOP-2121 Bump Jackson Databind 2.9.8