3.41.0

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Bug: a result that is not JSON serializable leaves the idempotency record stuck as INPROGRESS
aws-powertools/powertools-lambda-python#8721 · opened on Oct 31, 2026 · 3.41.0
3
Bug: output_serializer=PydanticSerializer crashes at import under from __future__ import annotations
aws-powertools/powertools-lambda-python#8722 · opened on Oct 31, 2026 · 3.41.0
6
Bug: DataclassSerializer cannot save datetime/UUID fields and does not rebuild nested dataclasses on replay
aws-powertools/powertools-lambda-python#8723 · opened on Oct 31, 2026 · 3.41.0
5
Bug: with a DynamoDB composite key, DataRecord.idempotency_key is the static partition key value
aws-powertools/powertools-lambda-python#8724 · opened on Oct 31, 2026 · 3.41.0
3
Bug: idempotency payloads with set, frozenset or bytes fields cannot be hashed
aws-powertools/powertools-lambda-python#8725 · opened on Oct 31, 2026 · 3.41.0
6
Bug: Redis orphan lock timeout ignores expires_after_seconds and is always 10 seconds
aws-powertools/powertools-lambda-python#8726 · opened on Oct 31, 2026 · 3.41.0
4
Bug: Redis layer fails the invocation instead of retrying when a record expires between SET NX and GET
aws-powertools/powertools-lambda-python#8727 · opened on Oct 31, 2026 · 3.41.0
4
Bug: POWERTOOLS_IDEMPOTENCY_DISABLED set to an empty or non-boolean value crashes every invocation
aws-powertools/powertools-lambda-python#8728 · opened on Oct 31, 2026 · 3.41.0
4
Docs: IdempotencyConfig docstring says local_cache_max_items defaults to 1024, it is 256
aws-powertools/powertools-lambda-python#8729 · opened on Oct 31, 2026 · 3.41.0
5
docs(idempotency): fix local_cache_max_items default in IdempotencyConfig docstring
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#8731 opened Oct 31, 2026 · Updated Nov 10, 2026
3
fix(idempotency): treat empty or unparsable POWERTOOLS_IDEMPOTENCY_DISABLED as not disabled
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#8734 opened Nov 1, 2026 · Updated Nov 1, 2026
2
fix(idempotency): retry Redis inconsistent state errors
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#8736 opened Nov 1, 2026 · Updated Nov 1, 2026
3
fix(idempotency): resolve postponed return annotations for serializer classes
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#8738 opened Nov 1, 2026 · Updated Nov 1, 2026
3
fix(idempotency): use the record key for DynamoDB composite items
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#8739 opened Nov 1, 2026 · Updated Nov 1, 2026
2
Bug: POWERTOOLS_PARAMETERS_MAX_AGE set to an empty or non-integer value crashes every parameters call
aws-powertools/powertools-lambda-python#8747 · opened on Nov 2, 2026 · 3.41.0
4
fix(parameters): ignore malformed POWERTOOLS_PARAMETERS_MAX_AGE instead of crashing
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#8757 opened Nov 2, 2026 · Updated Nov 5, 2026
4
fix(idempotency): add deterministic support for set, frozenset, and bytes types
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#8741 opened Nov 1, 2026 · Updated Nov 4, 2026
2
fix(idempotency): clear the in progress record when the response can't be serialized
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#8740 opened Nov 1, 2026 · Updated Nov 4, 2026
1
Bug: POWERTOOLS_DEV set to an empty string crashes Logger initialization
aws-powertools/powertools-lambda-python#8765 · opened on Nov 4, 2026 · 3.41.0
10
fix(logger): empty or unparsable POWERTOOLS_DEV no longer crashes Logger
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#8783 opened Nov 9, 2026 · Updated Nov 10, 2026
3
fix(idempotency): compute the Redis orphan lock timeout from the configured expiry
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#8779 opened Nov 9, 2026 · Updated Nov 10, 2026
5
Bug: a NaN or infinite metric value makes the whole EMF line invalid JSON
aws-powertools/powertools-lambda-python#8796 · opened on Nov 10, 2026 · 3.41.0
1

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3.41.0

Bug: a result that is not JSON serializable leaves the idempotency record stuck as INPROGRESS

Bug: output_serializer=PydanticSerializer crashes at import under from future import annotations

Bug: DataclassSerializer cannot save datetime/UUID fields and does not rebuild nested dataclasses on replay

Bug: with a DynamoDB composite key, DataRecord.idempotency_key is the static partition key value

Bug: idempotency payloads with set, frozenset or bytes fields cannot be hashed

Bug: Redis orphan lock timeout ignores expires_after_seconds and is always 10 seconds

Bug: Redis layer fails the invocation instead of retrying when a record expires between SET NX and GET

Bug: POWERTOOLS_IDEMPOTENCY_DISABLED set to an empty or non-boolean value crashes every invocation

Docs: IdempotencyConfig docstring says local_cache_max_items defaults to 1024, it is 256

docs(idempotency): fix local_cache_max_items default in IdempotencyConfig docstring

fix(idempotency): treat empty or unparsable POWERTOOLS_IDEMPOTENCY_DISABLED as not disabled

fix(idempotency): retry Redis inconsistent state errors

fix(idempotency): resolve postponed return annotations for serializer classes

fix(idempotency): use the record key for DynamoDB composite items

Bug: POWERTOOLS_PARAMETERS_MAX_AGE set to an empty or non-integer value crashes every parameters call

fix(parameters): ignore malformed POWERTOOLS_PARAMETERS_MAX_AGE instead of crashing

fix(idempotency): add deterministic support for set, frozenset, and bytes types

fix(idempotency): clear the in progress record when the response can't be serialized

Bug: POWERTOOLS_DEV set to an empty string crashes Logger initialization

fix(logger): empty or unparsable POWERTOOLS_DEV no longer crashes Logger

fix(idempotency): compute the Redis orphan lock timeout from the configured expiry

Bug: a NaN or infinite metric value makes the whole EMF line invalid JSON

Issues