Elasticsearch version 8.0.0-alpha2edit
Also see Breaking changes in 8.0.
Breaking changesedit
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ILM+SLM
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Infra/Core
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Fail index creation using custom data path #76792 (issue: #73168)
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System indices treated as restricted indices #74212 (issue: #69298)
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License
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Set
xpack.security.enabled to true for all licenses #72300
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Packaging
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Security
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Remove
kibana_dashboard_only_user reserved role #76507
Enhancementsedit
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Authentication
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Autogenerate and print elastic password on startup #77291
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Enroll Kibana API uses Service Accounts #76370
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Add
reset-kibana-system-user tool #77322
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ILM+SLM
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Allow for setting the total shards per node in the Allocate ILM action #76794 (issue: #76775)
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Infra/Core
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Retain reference to stdout for exceptional cases #77460
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Ingest
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Add support for
_meta field to ingest pipelines #76381
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Machine Learning
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Adding new PUT trained model vocabulary endpoint #77387
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Creating new PUT model definition part API #76987
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Network
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Enable LZ4 transport compression by default #76326 (issue: #73497)
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Search
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[REST API Compatibility] Nested path and filter sort options #76022 (issues: #42809, #51816)
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[REST API Compatibility]
CommonTermsQuery and cutoff_frequency parameter #75896 (issues: #42654, #51816)
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[REST API Compatibility] Allow first empty line for
_msearch #75886 (issues: #41011, #51816)
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Security
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Adding base
RestHandler class for Enrollment APIs #76564 (issue: #76097)
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Generate and store password hash for elastic user #76276 (issue: #75310)
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Set elastic password and generate enrollment token #75816 (issue: #75310)
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Add
elasticsearch-enroll-node tool #77292
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Default hasher to
PBKDF2_STRETCH on FIPS mode #76274
Bug Fixesedit
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ILM+SLM
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Ensuring that the
ShrinkAction does not hang if total shards per node is too low #76732 (issue: #44070)
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Security
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Allow access to restricted system indices for reserved system roles #76845