This is our second major release with many new features, enhancements, and improved parity for more extensive integration across the AWS tooling ecosystem. With LocalStack 2.0, we have significantly optimized the internals of the platform and moved to new service implementations, images, and internal toolings to make it easy for developers to build & test their cloud applications locally! Several of these changes require a migration, and we have done our best to make the migration as smooth as possible. Please find more in the How to migrate section.

Summary

Community

• LocalStack community image (localstack/localstack) no longer contains LocalStack Pro (localstack/localstack-pro) code, effectively cutting the community image size in half
• Removal of localstack-full and localstack-light since they have become obsolete thanks to our new dependency packaging system (simply use localstack or localstack-pro)
• Completely new AWS Lambda provider with improved parity and performance
• Completely new S3 provider with improved parity and features
• Improved supports for community cloud pods
• Simplified host configuration and docker networking
• Internal endpoints have moved into /_localstack and /_aws

Pro

• Cross-service IAM enforcement
• Completely new snapshot persistence (PERSISTENCE=1) mechanism with more flexible load and save strategies
• New simplified container setup for AWS Big Data Technologies (Athena, Glue, EMR, etc)

How to migrate

General

• ⚠️ If you are using LocalStack Pro with a LOCALSTACK_API_KEY, please change your container configuration to use localstack/localstack-pro. More details can be found here: https://github.com/localstack/localstack/issues/7854
• LocalStack Pro will fail to start if the LocalStack Key activation fails. You can disable this behavior by setting ACTIVATE_PRO=0.

Networking

• We are unifying the variables EDGE_BIND_HOST, EDGE_PORT and EDGE_PORT_HTTP into GATEWAY_LISTEN, which will allow configuration of the addresses and ports the LocalStack process listens on. It takes the form <ip address>[:port][,<ip address>:<port>...] where multiple values can be given, separated by commas. LocalStack will listen on all interfaces, but will ask for superuser permission for privileged ports. We will still accept EDGE_BIND_HOST, EDGE_PORT, and EDGE_PORT_HTTP during a deprecation period following the release of v2, but they will not be used by LocalStack for configuration at some point in the future. Please migrate your use of EDGE_BIND_HOST, EDGE_PORT or EDGE_PORT_HTTP to GATEWAY_LISTEN. If you experience issues, please try the deprecated configuration variables.

• For example, if you previously ran LocalStack with the command EDGE_BIND_HOST=0.0.0.0 EDGE_PORT=5000 EDGE_PORT_HTTP=5001 localstack start or used these configuration variables in your docker-compose.yml, please replace it with GATEWAY_LISTEN=0.0.0:5000,0.0.0.0:5001 localstack start.

• We are unifying the variables HOSTNAME_EXTERNAL and LOCALSTACK_HOSTNAME into LOCALSTACK_HOST, which will allow configuration of hostnames returned by LocalStack in a more consistent way. If provided, this variable will be used in preference to HOSTNAME_EXTERNAL and LOCALSTACK_HOSTNAME, and will be used as the hostname returned in URLs for created resources such as OpenSearch clusters, SQS queues, or RDS databases. We will still accept HOSTNAME_EXTERNAL or LOCALSTACK_HOSTAME during a deprecation period following the release of v2, but they will not be used by LocalStack for configuration at some point in the future. Please migrate your use of HOSTNAME_EXTERNAL or LOCALSTACK_HOSTNAME to LOCALSTACK_HOST. If you experience issues, please try the deprecated configuration variables.

• For example, if you previously ran LocalStack with the command HOSTNAME_EXTERNAL=<hostname> localstack start or used HOSTNAME_EXTERNAL in your docker-compose.yml, please replace it with LOCALSTACK_HOST=<hostname>[:port].

• Starting LocalStack Pro using the CLI will no longer publish port 53 to the host if it is already bound by some other service like systemd-resolved on Linux, or mDNSResponder on macOS.

Persistence & cloud pods

Using LocalStack Pro with PERSISTENCE=1 (which we term snapshot-based persistence) now has two behavioral changes with respect to when data is restored and saved. More information can be found in our docs.

• Restoring state/loading a snapshot (load): Previously, snapshots could only be loaded from disk per-service when services were first initialized, lazy-loading the state the first time a service was used. With the new persistence mechanism introduced in v2, persistent data can be loaded on LocalStack startup. You can configure this behavior by setting SNAPSHOT_LOAD_STRATEGY to on_request or on_startup. The default strategy currently is still on_request until we iron out some quirks.
• Saving state/creating a snapshot (save): Previously, a snapshot was created for a particular service on each request. This was mainly to protect against potential data loss if LocalStack would suddenly terminate. We found that this approach leads to several problems, specifically related to concurrency and performance. An alternative approach we have introduced is to store snapshots on LocalStack shutdown, which produces no performance overhead during runtime, but will not protect you against data loss if LocalStack does not terminate correctly. The default strategy is on a scheduled basis, specifically, we take snapshots of services that have changed every 15 seconds. You can configure this behavior by setting SNAPSHOT_SAVE_STRATEGY to on_request, on_shutdown or scheduled, respectively.

The layout of Cloud Pods has been changed and cloud pods created with v1.x.x may be incompatible with v2.0. Please re-create your cloud pods with the latest LocalStack version.

Lambda

Lambda has been completely re-written and the current documentation can be found here. There are several behavioral changes to lambda that mostly affect users of the LOCAL executor mode. If you run into issues, you can, for now, use the legacy provider using PROVIDER_OVERRIDE_LAMBDA=legacy.

• Mounting the Docker socket "/var/run/docker.sock:/var/run/docker.sock" into the LocalStack container is now required to run Lambdas.
• The default behavior is now equivalent to the old docker-reuse executor, there are no longer multiple options.
• Local executor: with LAMBDA_EXECUTOR=local , lambdas were executed within the LocalStack container. This was mostly used as a fallback if the docker socket could not be mounted into the LocalStack container. If you cannot mount the docker socket or don’t have an external DOCKER_HOST available, we provide a new way to run Lambda functions via static worker containers that can be configured manually. The only requirement here is connectivity between the static worker and the LocalStack instance. Predefined workers will be available via images hosted by us: e.g. localstack/lambda-worker:python3.9.
• There are several new ways to configure the lambda provider variables that can be found in our docs, which we will update in the upcoming weeks.
• We have migrated our Lambda Docker images from lambci to use the official AWS images, which will now be pulled by default from public.ecr.aws/lambda/
• Functions were previously created synchronously, i.e., CreateFunction calls would block until the function state was “Active”. Functions are now created asynchronously, and their state will move from “Pending” to “Active”, which you can check with a GetFunction call. This behavior can be disabled with LAMBDA_SYNCHRONOUS_CREATE=1 (not recommended).
• Stricter input validation: previously, when creating functions, the Role attribute could be any value, and many of our examples included something like awslocal create-function --role r1. This will no longer work, as roles now have to have an ARN format. We do not t validate whether the role exists, so you can use any ARN.
• Hot reloading: previously, the magic S3 bucket name for lambda code hot reloading was __local__, which was changed to hot-reload. Please change your deployment configs accordingly, or use the BUCKET_MARKER_LOCAL configuration to customize the value.
• Lambda in LocalStack Pro supports “transparent endpoint injection”, which allows Lambdas to resolve domains like s3.amazonaws.com to the LocalStack container. Previously, this was based on patching SDKs, but is now completely DNS-based, and will be disabled if DNS_ADDRESS=0 is set.

S3

S3 has been completely re-written and its behavior is aligned with AWS. Users should be mostly unaffected, but may experience some breakage depending on previous behavior that was not aligned with AWS. Should you run into problems, you can activate the old provider with PROVIDER_OVERRIDE_S3=legacy.

Big Data container

• The mono container mode (BIGDATA_MONO_CONTAINER=1) for BigData services (Glue, EMR, Athena, etc) is now the default, the previous implementation with a separate sidecar localstack_bigdata container is deprecated and will be removed in a future release.
• Please note that some of the required dependencies (Spark, Hive, etc) are lazily downloaded and installed at runtime, which increases the processing time on first load. The libraries are cached locally in the var_libs directory - please make sure to properly mount the LocalStack volume into your container. We also provide a separate localstack/localstack-pro:latest-bigdata BigData mono container image which has the default dependencies pre-installed.

Other notable changes

• supervisord is no longer used to start LocalStack in the Docker container, instead we use our own init program.
• LocalStack no longer automatically restarts on failure
• /var/lib/localstack/logs/localstack_infra.log was removed
• REQUIRE_PRO has been replaced with ACTIVATE_PRO, which sets whether or not LocalStack pro should be activated when using the pro image.

New deprecations

• With all new provider implementations, some configuration variables have been deprecated with this release and will be removed in future releases:
  • HOSTNAME_EXTERNAL - This configuration will be migrated to LOCALSTACK_HOST
  • LOCALSTACK_HOSTNAME - This configuration will be migrated to LOCALSTACK_HOST
  • EDGE_BIND_HOST - This configuration will be migrated to GATEWAY_LISTEN
  • EDGE_PORT - This configuration will be migrated to GATEWAY_LISTEN
  • EDGE_PORT_HTTP - This configuration will be migrated to GATEWAY_LISTEN
  • LAMBDA_EXECUTOR - This configuration is obsolete with the new lambda provider
  • LAMBDA_STAY_OPEN_MODE - Stay open mode is the default behavior in the new lambda provider
  • LAMBDA_REMOTE_DOCKER - The new lambda provider copies zip files by default and automatically configures hot reloading
  • LAMBDA_CODE_EXTRACT_TIME - Function creation now happens asynchronously in the new lambda provider
  • LAMBDA_CONTAINER_REGISTRY - The new lambda provider uses LAMBDA_RUNTIME_IMAGE_MAPPING instead
  • LAMBDA_XRAY_INIT - The X-Ray daemon is always initialized in the new lambda provider
  • LAMBDA_DOCKER_DNS - This feature is currently not supported in the new lambda provider
  • HOSTNAME_FROM_LAMBDA - This feature is currently not supported in the new lambda provider
  • LAMBDA_FALLBACK_URL - This feature is not supported in the new lambda provider
  • LAMBDA_FORWARD_URL - This feature is not supported in the new lambda provider

Deprecation removals

• Deprecation removals:
  • LEGACY_EDGE_PROXY has been removed
  • LEGACY_DIRECTORIES has been removed, please migrate to the current Filesystem Layout
  • LEGACY_IAM_ENFORCEMENT has been removed
  • /docker-entrypoint-initaws.d for initializing LocalStack has been removed, please migrate to the modern Initialization Hooks
  • please find other minor deprecation notices in previous release notes.

What's Changed

• Update ASF APIs by @localstack-bot in https://github.com/localstack/localstack/pull/7669
• [SFN] basic version of stepfunctions v2 by @MEPalma in https://github.com/localstack/localstack/pull/7464
• Avoid installing amazon_kclpy>=2.1.0 by @dominikschubert in https://github.com/localstack/localstack/pull/7676
• Fix CFn Route53 Record Set TTL by @pinzon in https://github.com/localstack/localstack/pull/7677
• use lifecycle hook for registering lambda function URL routes by @thrau in https://github.com/localstack/localstack/pull/7668
• add proper shutdown for the hypercorn server that serves the ASF gateway by @thrau in https://github.com/localstack/localstack/pull/7609
• fix encoding issues in router, proxy, partition rewriting by @alexrashed in https://github.com/localstack/localstack/pull/7682
• Release 1.4.0 by @viren-nadkarni in https://github.com/localstack/localstack/pull/7670
• fix SNS PublishBatch modifying batch context for all subscribers after filtering by @bentsku in https://github.com/localstack/localstack/pull/7674
• Use more informative container names for spawned Lambda containers by @dominikschubert in https://github.com/localstack/localstack/pull/7667
• Change behavior of VtlTemplate to modify variable values in-place by @whummer in https://github.com/localstack/localstack/pull/7687
• refactor state visitor code and lifecycle hooks by @thrau in https://github.com/localstack/localstack/pull/7650
• fix coveralls integration by @alexrashed in https://github.com/localstack/localstack/pull/7694
• Ignore dangling images in localstack update by @dominikschubert in https://github.com/localstack/localstack/pull/7691
• Allow configuration of docker image used for port checks by @dominikschubert in https://github.com/localstack/localstack/pull/7690
• guard process information pytest_unconfigure hook from exceptions by @thrau in https://github.com/localstack/localstack/pull/7697
• refactor community ext imports by @alexrashed in https://github.com/localstack/localstack/pull/7693
• Add support for route.destination-cidr-block filter in DescribeRouteTables by @dominikschubert in https://github.com/localstack/localstack/pull/7700
• Fix docker runtime executor flags by @joe4dev in https://github.com/localstack/localstack/pull/7675
• fix internet gateway attrs by @pinzon in https://github.com/localstack/localstack/pull/7679
• Feature CFn Macros/Transformations by @pinzon in https://github.com/localstack/localstack/pull/7509
• Install postgres dependencies on runner for redshift by @dominikschubert in https://github.com/localstack/localstack/pull/7708
• Update ASF APIs by @localstack-bot in https://github.com/localstack/localstack/pull/7715
• Use token in GitHubReleaseInstaller for increased rate-limits by @dominikschubert in https://github.com/localstack/localstack/pull/7716
• extend persistence api by @thrau in https://github.com/localstack/localstack/pull/7713
• Allow container port binding for privileged ports by @dfangl in https://github.com/localstack/localstack/pull/7719
• fix cfn stack events resource types by @pinzon in https://github.com/localstack/localstack/pull/7599
• Don't require CAPABILITY_AUTO_EXPAND for change sets by @dominikschubert in https://github.com/localstack/localstack/pull/7718
• Add retry cycles for deleting stack resources by @dominikschubert in https://github.com/localstack/localstack/pull/7717
• Re-enable cli container lifecycle test by @joe4dev in https://github.com/localstack/localstack/pull/7702
• fix S3 GetObjectAttributes and GetObject to return Checksum if requested by @bentsku in https://github.com/localstack/localstack/pull/7704
• fix 'unexpected keyword argument' error by @steffyP in https://github.com/localstack/localstack/pull/7686
• add rest api fixture by @calvernaz in https://github.com/localstack/localstack/pull/7724
• Check original environment copy for deprecations by @dominikschubert in https://github.com/localstack/localstack/pull/7685
• Fix apigateway authorizer path suffix by @calvernaz in https://github.com/localstack/localstack/pull/7557
• Add initial support for CFn Fn:Transform intrinsic functions by @whummer in https://github.com/localstack/localstack/pull/7711
• [SFN] base implementation of intrinsic functions by @MEPalma in https://github.com/localstack/localstack/pull/7526
• [SFN] [IntrinsicFunctions]: snapshot tests, Array functions, String functions, fixes by @MEPalma in https://github.com/localstack/localstack/pull/7655
• Gather outdated snapshots by @baermat in https://github.com/localstack/localstack/pull/7739
• Fix apigateway path encoding by @joe4dev in https://github.com/localstack/localstack/pull/7728
• Refactor authorizer info in API Gateway invocation context by @whummer in https://github.com/localstack/localstack/pull/7740
• Improve support for request integration parameters by @calvernaz in https://github.com/localstack/localstack/pull/7580
• [SFN] [IntrinsicFunctions] base support for JsonMerge and States.Hash, boolean literals support, snap test by @MEPalma in https://github.com/localstack/localstack/pull/7671
• Feat/api gateway dynamodb query by @amitassaraf in https://github.com/localstack/localstack/pull/7572
• Enhance parity for API Gateway DynamoDB integrations by @whummer in https://github.com/localstack/localstack/pull/7753
• Update ASF APIs by @localstack-bot in https://github.com/localstack/localstack/pull/7758
• Enable generic actions and enhance parity for DynamoDB API GW integration by @whummer in https://github.com/localstack/localstack/pull/7755
• restructure python distributions by @alexrashed in https://github.com/localstack/localstack/pull/7730
• Minimal implementation for continuous backup by @giograno in https://github.com/localstack/localstack/pull/7735
• fix event target id validation by @pinzon in https://github.com/localstack/localstack/pull/7688
• validate StartingPosition during CreateEventSourceMapping operation by @pinzon in https://github.com/localstack/localstack/pull/7696
• improve parity for APIGW Resource by @bentsku in https://github.com/localstack/localstack/pull/7738
• Update Kinesis Mock to 0.3.10 by @etspaceman in https://github.com/localstack/localstack/pull/7748
• Skip lambda nodejs18 extra cert snapshot verify by @joe4dev in https://github.com/localstack/localstack/pull/7765
• [SFN] [IntrinsicFunctions] Base implementation of States.Math functions by @MEPalma in https://github.com/localstack/localstack/pull/7689
• [SFN] [IntrinsicFunctions] base implementation Encode-Decode functions by @MEPalma in https://github.com/localstack/localstack/pull/7709
• Add lambda model and api updates by @joe4dev in https://github.com/localstack/localstack/pull/7762
• Catch Route53 Record Sets without TTL by @QuinnyPig in https://github.com/localstack/localstack/pull/7767
• fix SNS storing lambda invocation logs + improve parity by @bentsku in https://github.com/localstack/localstack/pull/7771
• improve apigw parity work for Resource proxy path by @bentsku in https://github.com/localstack/localstack/pull/7746
• Enhance CloudFormation parity for policy of API Gateway REST APIs by @whummer in https://github.com/localstack/localstack/pull/7777
• Update apt repositories when installing system dependencies by @simonrw in https://github.com/localstack/localstack/pull/7794
• add runtime hook that runs on pro infra startup by @thrau in https://github.com/localstack/localstack/pull/7789
• add cwd parameter to ShellCommandThread by @thrau in https://github.com/localstack/localstack/pull/7800
• add persistence API integration for community services by @thrau in https://github.com/localstack/localstack/pull/7785
• test: list object version with prefix and delimiters by @macnev2013 in https://github.com/localstack/localstack/pull/7760
• Update ASF APIs by @localstack-bot in https://github.com/localstack/localstack/pull/7805
• Refactor machine arch name helper by @viren-nadkarni in https://github.com/localstack/localstack/pull/7818
• add validation of KMS key state in S3 by @bentsku in https://github.com/localstack/localstack/pull/7786
• Add Lambda init debug mode by @dominikschubert in https://github.com/localstack/localstack/pull/7809
• Add scenario tests with Fundamental level for Stepfunctions by @dominikschubert in https://github.com/localstack/localstack/pull/7793
• Add DELETE to the _localstack/ses/ endpoint by @justinwyer in https://github.com/localstack/localstack/pull/7816
• apigateway - refactor store by @bentsku in https://github.com/localstack/localstack/pull/7750
• Fix error with threads not having _target attributes by @dfangl in https://github.com/localstack/localstack/pull/7829
• refactor kinesis state lifecycle hook by @thrau in https://github.com/localstack/localstack/pull/7825
• DDB - persistence plugin and server rework by @giograno in https://github.com/localstack/localstack/pull/7827
• Fix multiple AWS::Lambda::Permission for single function by @dominikschubert in https://github.com/localstack/localstack/pull/7832
• Lambda runtime parity by @joe4dev in https://github.com/localstack/localstack/pull/7824
• fix openapi 3.0 security schemes import by @calvernaz in https://github.com/localstack/localstack/pull/7822
• Remove extra slash in SQS path strategy by @baermat in https://github.com/localstack/localstack/pull/7837
• refactor SNS store to facilitate lookups by @bentsku in https://github.com/localstack/localstack/pull/7803
• fix APIGW import RestAPI version type mismatch by @bentsku in https://github.com/localstack/localstack/pull/7787
• Update ASF APIs by @localstack-bot in https://github.com/localstack/localstack/pull/7844
• Bump moto ext to 4.1.4.post1 by @viren-nadkarni in https://github.com/localstack/localstack/pull/7813
• Fix: Alias name validator by @deepak2431 in https://github.com/localstack/localstack/pull/7826
• apigw parity work resource method by @bentsku in https://github.com/localstack/localstack/pull/7749
• update s3 tests location in CODEOWNERS by @bentsku in https://github.com/localstack/localstack/pull/7845
• New AWS client by @dfangl in https://github.com/localstack/localstack/pull/7240
• add logging for basic container information by @thrau in https://github.com/localstack/localstack/pull/7855
• ignore scheduled rules when processing put_events by @dominikschubert in https://github.com/localstack/localstack/pull/7848
• Fix transformation of falsy values in KeyValueBasedTransformer by @dominikschubert in https://github.com/localstack/localstack/pull/7852
• fix APIGW UpdateMethod authorizer validation by @bentsku in https://github.com/localstack/localstack/pull/7860
• Fix openapi authorization header for type token by @calvernaz in https://github.com/localstack/localstack/pull/7851
• Allow privileged mode to be passed as additional flag by @viren-nadkarni in https://github.com/localstack/localstack/pull/7835
• Added hooks to the SFN provider by @giograno in https://github.com/localstack/localstack/pull/7834
• fix NotFound exception for GetTopicAttributes by @bentsku in https://github.com/localstack/localstack/pull/7862
• Return RSA public key in SPKI format by @laszlovandenhoek in https://github.com/localstack/localstack/pull/7856
• Ignore AWS::SecretsManager-2020-07-03 transform by @silv-io in https://github.com/localstack/localstack/pull/7863
• Fix S3 routing in moto to allow upload of favicon.ico files by @whummer in https://github.com/localstack/localstack/pull/7868
• Stop tracking the values of HOST* related envars by @simonrw in https://github.com/localstack/localstack/pull/7877
• Add v1 provider aliases for legacy providers by @dominikschubert in https://github.com/localstack/localstack/pull/7875
• DynamoDB: Fix unprocessed item not added to response by @viren-nadkarni in https://github.com/localstack/localstack/pull/7879
• Refactor API GW tests, assert correct JSON content-type for DDB integration by @whummer in https://github.com/localstack/localstack/pull/7843
• Track additional host variables by @simonrw in https://github.com/localstack/localstack/pull/7883
• apigw parity work on Model resource by @bentsku in https://github.com/localstack/localstack/pull/7828
• add ListBuckets into general CORS handling by @bentsku in https://github.com/localstack/localstack/pull/7889
• fix scheduler start/stop for persistence by @steffyP in https://github.com/localstack/localstack/pull/7885
• KMS: Fix double hashing during sign/verify operations by @viren-nadkarni in https://github.com/localstack/localstack/pull/7878
• fix validator and model check during invocation by @bentsku in https://github.com/localstack/localstack/pull/7846
• fix validation in test for put-subscription-filter with lambda by @steffyP in https://github.com/localstack/localstack/pull/7894
• Fix SortingTransformer for nested input by @dominikschubert in https://github.com/localstack/localstack/pull/7895
• Fix deletion of file content on snapshot error by @dominikschubert in https://github.com/localstack/localstack/pull/7898
• add an exception handler to serialize werkzeug HTTPException by @thrau in https://github.com/localstack/localstack/pull/7790
• implement apigw Model validation if in use by a Method by @bentsku in https://github.com/localstack/localstack/pull/7872
• fix sns unsubscribe to be idempotent by @thrau in https://github.com/localstack/localstack/pull/7901
• add apigatewayv2 transformers by @calvernaz in https://github.com/localstack/localstack/pull/7903
• Update ASF APIs by @localstack-bot in https://github.com/localstack/localstack/pull/7909
• Unify hostnames in returned URLs by @simonrw in https://github.com/localstack/localstack/pull/7774
• Add lambda config to ignore architecture by @joe4dev in https://github.com/localstack/localstack/pull/7890
• Add Lambda runtime parity configuration for ulimit by @joe4dev in https://github.com/localstack/localstack/pull/7871
• fix APIGW request validation with empty request body by @bentsku in https://github.com/localstack/localstack/pull/7916
• add tracing for handler chain by @thrau in https://github.com/localstack/localstack/pull/7908
• 7910 support having a grant with the same name on different keys by @BlueDragon23 in https://github.com/localstack/localstack/pull/7911
• Implement basic persistence for lambda v2 by @dominikschubert in https://github.com/localstack/localstack/pull/7913
• Add foundation for basic xray integration by @dominikschubert in https://github.com/localstack/localstack/pull/7892
• Disable moto S3 bucket policy enforcement to unblock CDK bootstraps by @whummer in https://github.com/localstack/localstack/pull/7907
• Add support for provisioned and reserved concurrency by @dominikschubert in https://github.com/localstack/localstack/pull/7881
• Add support for VPC endpoints for private API Gateway REST APIs by @whummer in https://github.com/localstack/localstack/pull/7905
• Added test cases and fixed issues for RequestValidator apigateway by @sannya-singal in https://github.com/localstack/localstack/pull/7917
• Fix lambda destination default retries by @dominikschubert in https://github.com/localstack/localstack/pull/7933
• update the dockerhub action to update README file by @HarshCasper in https://github.com/localstack/localstack/pull/7925
• Add pro clients, allow setting of request params through a "proxy" by @dfangl in https://github.com/localstack/localstack/pull/7923
• v2 pipeline changes by @alexrashed in https://github.com/localstack/localstack/pull/7927
• SES: Fix sent email counter double incrementing by @viren-nadkarni in https://github.com/localstack/localstack/pull/7919
• remove code for LEGACY_DIRECTORIES by in @thrau in https://github.com/localstack/localstack/pull/7865
• remove /docker-entrypoint-initaws.d init scripts by @thrau in https://github.com/localstack/localstack/pull/7864
• remove LEGACY_EDGE_PROXY by @thrau in https://github.com/localstack/localstack/pull/7886
• fix config.dirs usage in the CLI by @thrau in https://github.com/localstack/localstack/pull/7906
• Update PRO image warning by @silv-io in https://github.com/localstack/localstack/pull/7928
• S3 migration - set s3 v2 provider as default @steffyP and @bentsku in https://github.com/localstack/localstack/pull/6827
• Removing state serializer interfaces by @giograno in https://github.com/localstack/localstack/pull/7921
• Configure cosmetic and functional variables with LOCALSTACK_HOST and GATEWAY_LISTEN by @simonrw in https://github.com/localstack/localstack/pull/7893
• add fix for CLI tests to properly set CLI context by @thrau in https://github.com/localstack/localstack/pull/7939
• Switch to new Lambda provider implementation by @dominikschubert and @dfangl in https://github.com/localstack/localstack/pull/6724
• Dynamically determine ports check Docker image to avoid duplicate download by @whummer in https://github.com/localstack/localstack/pull/7931
• re-add mkdirs call before starting localstack docker container by @thrau in https://github.com/localstack/localstack/pull/7944
• Fix test failures for community tests in PRO by @dominikschubert in https://github.com/localstack/localstack/pull/7950
• Add cache for common functions by @dfangl in https://github.com/localstack/localstack/pull/7942
• Added test cases and fixed issues for DocumentationPart apigateway by @sannya-singal in https://github.com/localstack/localstack/pull/7938
• Remove pro check and conditional client config for endpoint tests by @dominikschubert in https://github.com/localstack/localstack/pull/7953
• Fix lambda urls when persistence is enabled by @dfangl in https://github.com/localstack/localstack/pull/7954
• Remove mention of deprecated LAMBDA_EXECUTOR in docker-compose files by @dominikschubert in https://github.com/localstack/localstack/pull/7951
• Fix issues with LOCALSTACK_HOST parsing by @simonrw in https://github.com/localstack/localstack/pull/7945
• add check for FakeDeleteMarker in case of versioned bucket by @bentsku in https://github.com/localstack/localstack/pull/7948
• fix client metadata to always return an empty string for api_key by @thrau in https://github.com/localstack/localstack/pull/7960
• skip test_kinesis_firehose_opensearch_s3_backup + es equivalent + fix s3 flake by @bentsku in https://github.com/localstack/localstack/pull/7962
• Add back s3 v2 provider alias by @dominikschubert in https://github.com/localstack/localstack/pull/7943
• fix: dynamodb restart by @giograno in https://github.com/localstack/localstack/pull/7965
• fix CORS issue for CreateBucket and ListBuckets by @bentsku in https://github.com/localstack/localstack/pull/7961
• fix race condition in service plugin loading by @thrau in https://github.com/localstack/localstack/pull/7968
• Fix websocket template expression by @calvernaz in https://github.com/localstack/localstack/pull/7778
• Implement reset hooks for lambda provider by @dominikschubert in https://github.com/localstack/localstack/pull/7967
• skip test_package_installer_custom_lock to unblock CI pipeline by @thrau in https://github.com/localstack/localstack/pull/7959
• Update ASF APIs by @localstack-bot in https://github.com/localstack/localstack/pull/7974
• small pipeline improvements by @alexrashed in https://github.com/localstack/localstack/pull/7976
• Don't source (LOCALSTACK_)HOST in docker entrypoint by @simonrw in https://github.com/localstack/localstack/pull/7978
• fixed too many arguments for local lambda executor by @AndrewChubatiuk in https://github.com/localstack/localstack/pull/7568
• Fix cloud formation S3 CorsConfig by @deepak2431 in https://github.com/localstack/localstack/pull/7866
• Add GATEWAY_LISTEN to analytics events by @simonrw in https://github.com/localstack/localstack/pull/7977
• fix typo in CODEOWNERS for S3 by @bentsku in https://github.com/localstack/localstack/pull/7982
• Adds support for arrays in event bridge rule pattern by @bruno-imx in https://github.com/localstack/localstack/pull/7947
• Extend docker/net utils to allow port checks for UDP ports by @whummer in https://github.com/localstack/localstack/pull/7955
• add test for ListObjectsV2 + fix config flag by @bentsku in https://github.com/localstack/localstack/pull/7987
• add test for ListMultipartUploads by @bentsku in https://github.com/localstack/localstack/pull/7981
• rework init system that starts localstack by @thrau in https://github.com/localstack/localstack/pull/7970
• Improve Lambda deprecation warnings by @joe4dev in https://github.com/localstack/localstack/pull/7992
• fix CLI tests after reworking init process by @alexrashed in https://github.com/localstack/localstack/pull/7995
• Ignore empty provider overrides by @silv-io in https://github.com/localstack/localstack/pull/7998
• Bump moto-ext to 4.1.5.post2 by @viren-nadkarni in https://github.com/localstack/localstack/pull/7952
• remove DISABLE_TERM_HANDLER in docker entrypoint by @alexrashed in https://github.com/localstack/localstack/pull/7999
• move feature requests to discussion pages by @HarshCasper in https://github.com/localstack/localstack/pull/7304
• fix flaky CLI tests after startup time improved by @alexrashed in https://github.com/localstack/localstack/pull/7996
• fix response structure for S3 ListMultipartUploads by @bentsku in https://github.com/localstack/localstack/pull/7983
• add dynamic check of origin for CORS by @bentsku in https://github.com/localstack/localstack/pull/7904
• Fix length check for CloudFormation TemplateBody by @whummer in https://github.com/localstack/localstack/pull/8001
• Add utility for creating a client assuming a role, migrate some inter-service communication to new client by @dfangl in https://github.com/localstack/localstack/pull/7990
• Support non-standard AWS regions by @viren-nadkarni in https://github.com/localstack/localstack/pull/7997
• create separate cache directory for cli by @thrau in https://github.com/localstack/localstack/pull/8005
• Ignore publish version code hash if hot-reloading is active by @dfangl in https://github.com/localstack/localstack/pull/8004
• fix signal handling in localstack-supervisor by @thrau in https://github.com/localstack/localstack/pull/8007
• Add basic cloudwatch metrics for new lambda provider by @dominikschubert in https://github.com/localstack/localstack/pull/8006
• Log reported runtime init error by @dominikschubert in https://github.com/localstack/localstack/pull/8009
• Remove unneeded defaults for envars by @simonrw in https://github.com/localstack/localstack/pull/8012
• use GitHub auth token in download util if available by @alexrashed in https://github.com/localstack/localstack/pull/8014

New Contributors

• @justinwyer made their first contribution in https://github.com/localstack/localstack/pull/7816
• @deepak2431 made their first contribution in https://github.com/localstack/localstack/pull/7826
• @laszlovandenhoek made their first contribution in https://github.com/localstack/localstack/pull/7856
• @BlueDragon23 made their first contribution in https://github.com/localstack/localstack/pull/7911
• @AndrewChubatiuk made their first contribution in https://github.com/localstack/localstack/pull/7568
• @bruno-imx made their first contribution in https://github.com/localstack/localstack/pull/7947

Full Changelog: https://github.com/localstack/localstack/compare/v1.4.0...v2.0.0