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  • 4.1.6

    • Fix docs. PR #120

  • 4.1.5

    • Avoid raising badmatch exception when parsing SASL file which may lead to password leaking in crash logs.

  • 4.1.4

    • Ignore space in comma-separated hosts string.
    • Add more detailed information when server returned API version range is not supported.

  • 4.1.3

    • Bump snappyer dependency from 1.2.8 to 1.2.9 (supports GCC 13).
    • Fix scram auth client final message.

  • 4.1.2

    • Allow passwords passed down to kpro_connection to be multiply nested functions, instead of considering at most a single layer.

  • 4.1.1

    • Ported changes from EMQX's fork (based on 2.3.6) back to master branch
      • Included an pushback twards 'no_ack' callers. emqx#1
    • Avoid crashing on decoding unknown error codes
    • Improve SNI (server_name_indication) config.
      • Prior to this change, SNI is auto-added only when SSL option 'verify' is set to 'verify_peer'. This retriction is unnecessary, because SNI is a part of client-hello in the handshake, it does not have anything to do with server certificate (and hostname) verification.
      • The connection config is shared between bootstrap connection and partition leader connection. Using a static SNI may work for bootstrap connections but may then fail for partition leaders if they happen to be different hosts (which is always the case in confluent cloud). To fix it, we now allow users to use two special values for SNI:
        • auto: use the exact connecting host name (FQDN or IP)
        • none: do not use anything at all.

  • 4.1.0

    • Added pass SASL version to kpro_auth_backend behaviour modules
    • The application ˋstartˋ method must return the pid of the top supervisor

  • 4.0.3

    • Fix type spec for hostname() to include inet:ip_address()

  • 4.0.2

    • Bug fix: empty bytes is encoded to 0, but not -1
    • Respect connect API's timeout parameter as an overall timeout, rather not the timeout for each internal step

  • 4.0.1

    • Swap test environment to match docker-compose setup from brod
    • Fix keys in delete_topics and tests to use the correct field names

  • 4.0.0

    • Remove hard dependencies on snappyer and lz4b. See 'Compression Support' section in README for more details.

  • 3.1.0

    • Experimental support for lz4 compression.

  • 3.0.1

    • remove old rebar from app.src

  • 3.0.0

    • API support for Kafka 2.4 Non backward compatible changes in request/response struct field names.

      New Kafka APIs:

      • offset_for_leader_epoch
      • elect_leaders
      • incremental_alter_configs
      • alter_partition_reassignments
      • list_partition_reassignments
      • offset_delete

      New versions of old APIs:

      • produce: 6-8
      • fetch: 8-11
      • list_offsets: 3-5
      • metadata: 6-9
      • offset_commit: 4-8
      • offset_fetch: 4-6
      • find_coordinator: 2-3
      • join_group: 3-6
      • heartbeat: 2-4
      • leave_group: 2-4
      • sync_group: 2-4
      • describe_groups: 2-5
      • list_groups: 2-3
      • api_versions: 2-3
      • create_topics: 3-5
      • delete_topics: 2-4
      • delete_records: 1
      • init_producer_id: 1-2
      • add_partitions_to_txn: 1
      • add_offsets_to_txn: 1
      • end_txn: 1
      • txn_offset_commit: 1-2
      • describe_acls: 1
      • create_acls: 1
      • delete_acls: 1
      • describe_configs: 2
      • alter_configs: 1
      • alter_replica_log_dirs: 1
      • describe_log_dirs: 1
      • sasl_authenticate: 1
      • create_partitions: 1
      • create_delegation_token: 1-2
      • renew_delegation_token: 1
      • expire_delegation_token: 1
      • describe_delegation_token: 1
      • delete_groups: 1-2

      Changed Fields:

      • fetch:
        • epoch -> session_epoch
        • topics[]:
          • partitions[]:
            • max_bytes -> partition_max_bytes
        • forgetten_topics_data -> forgotten_topics_data[]:
          • partitions[]:
            • max_bytes -> partition_max_bytes
      • metadata:
        • topics[]:
          • string -> [{name,string}]
      • offset_commit:
        • retention_time -> retention_time_ms
        • topics[]:
          • topic -> name
          • partitions[]:
            • partition -> partition_index
            • offset -> committed_offset
            • metadata -> committed_metadata
      • offset_fetch:
        • topics[]:
          • topic -> name
          • partitions -> partition_indexes[]:
            • [{partition,int32}] -> int32
      • find_coordinator:
        • coordinator_key -> key
        • coordinator_type -> key_type
      • join_group:
        • session_timeout -> session_timeout_ms
        • rebalance_timeout -> rebalance_timeout_ms
        • group_protocols -> protocols[]:
          • protocol_name -> name
          • protocol_metadata -> metadata
      • sync_group:
        • group_assignment -> assignments[]:
          • member_assignment -> assignment
      • describe_groups:
        • group_ids -> groups
      • create_topics:
        • create_topic_requests -> topics[]:
          • topic -> name
          • replica_assignment -> assignments[]:
            • partition -> partition_index
            • replicas -> broker_ids
          • config_entries -> configs[]:
            • config_name -> name
            • config_value -> value
        • timeout -> timeout_ms
      • delete_topics:
        • topics -> topic_names
        • timeout -> timeout_ms
      • txn_offset_commit:
        • topics[]:
          • topic -> name
          • partitions[]:
            • partition -> partition_index
            • offset -> committed_offset
            • metadata -> committed_metadata
      • sasl_authenticate:
        • sasl_auth_bytes -> auth_bytes
      • create_delegation_token:
        • renewers[]:
          • name -> principal_name
        • max_life_time -> max_lifetime_ms
      • renew_delegation_token:
        • renew_time_period -> renew_period_ms
      • expire_delegation_token:
        • expiry_time_period -> expiry_time_period_ms
      • describe_delegation_token:
        • owners[]:
          • name -> principal_name
      • delete_groups:
        • groups -> groups_names

  • 2.4.1

    • Upgrade snappyer (1.2.6) and crc32cer (0.1.8): no need to link erl_interface for nif build erl_interface has been deprecated in otp 22 and will be deleted in 23

  • 2.4.0

    • Add Describe and Alter Configs APIs, part of KIP-133

  • 2.3.6

    • Upgrade snappyer and crc32cer to fix build in windows

  • 2.3.5

    • Improve produce request encoding performance by 35%

  • 2.3.4

    • Insert sni only when missing in ssl options
    • Ensure string() type sni in ssl options

  • 2.3.3

    • consumer group message metadata V3

  • 2.3.2

    • Made send_error Reason more informative

  • 2.3.1

    • Use git tag as a source of truth for the application version

  • 2.3.0

    • Honor LogAppendTime when decoding messages

  • 2.2.9

    • Allo atom as hostname because inet:hostname() :: atom() | string().

  • 2.2.8

    • Discard replica_not_available (ReplicaNotAvailable) in partition metadata

  • 2.2.7

    • Improve varint encoding performance

  • 2.2.6

    • Change kpro_lib:data_size/1 to iolist_size nif

  • 2.2.5

    • Add {server_name_indication, Host} when {verify, verify_peer} is used. This is necessary for OTP >= 20.x.

  • 2.2.4

    • Fix type specs (PR #48, by Piotr Bober)

  • 2.2.3

    • Gotten rid of OS native timestamps

  • 2.2.2

    • Moved make_ref to function impl from record definition

  • 2.2.0

    • Add truly async send API kpro:send/2

  • 2.1.2

    • Bump crc32cer to 0.1.3 to support alpine/busybox build

  • 2.1.1

    • Pull docker image (instead of build locally) for tests
    • Update snappyer and crc32cer to support configurable nif so file lookup location

  • 2.1.0

    • Simplify batch input. Batch magic version is derived from produce API version. no longer depends on batch input format to determine magic version.

  • 2.0.1

    • Bump crc32cer to from 0.1.0 to 0.1.1 to fix build issue in OSX

  • 2.0.0

    • Supported kafka 1.1 protocol
    • API keys are generated from bnf
    • Error codes are generated from a eterm.
    • Schema getters changed from get(API_request, Vsn) to req(API, Vsn), and get(API_response, Vsn) to rsp(API, Vsn).
    • kpro:struct() is now a map(), but list() is still supported as encoder input
    • Added socket implementation kpro_connection.erl (a copy of brod_sock.erl).
    • Basic connection management APIs:
      • connect to any node in a give cluster
      • discover and connect partition-leader
      • discover and connect group-coordinator
      • discover and connect transactional-coordinator
      • discover and connect cluster-controller
    • Transactional RPC primitives kpro:txn_xxx
    • Changed socket option from {packet, raw} to {packet, 4}
    • Add sasl-scram support

  • 1.1.2

    • Fix compressed message wrapper timestamp handling, use the max ts in compressed batch
    • Fix wrapper message offset (always set to 0) to work with kafka 0.11
    • Fix snappy decompression, version 1 record (MagicByte=1) may not have java snappy packing

  • 1.1.1

    • Fix relative offset encoding/decoding in compressed batches

  • 1.1.0

    • Bug Fixes:
      • Adding missing error code and add api-key interpretation
    • New Features
      • Support message timestamp in message-set encoding input {Ts, Key, Value}

  • 1.0.1 Added more type exports

  • 0.9 -> 1.0 incompatible changes

    • changed from erlang.mk to rebar/rebar3
    • encode inputs from records to proplists
    • decode outputs from records to proplists
    • kpro:fetch_request, kpro:offsets_request APIs have args list changed
    • Maximum correlation ID changed to (1 bsl 24 - 1)