[[release-notes-8.0.0-alpha2]]
== {es} version 8.0.0-alpha2

Also see <<breaking-changes-8.0,Breaking changes in 8.0>>.

[[breaking-8.0.0-alpha2]]
[float]
=== Breaking changes


ILM+SLM::
* Make the ILM `freeze` action a no-op {es-pull}77158[#77158] (issue: {es-issue}70192[#70192])

Infra/Core::
* Fail index creation using custom data path {es-pull}76792[#76792] (issue: {es-issue}73168[#73168])
* System indices treated as restricted indices {es-pull}74212[#74212] (issue: {es-issue}69298[#69298])

License::
* Set `xpack.security.enabled` to true for all licenses {es-pull}72300[#72300]

Packaging::
* Remove no-jdk distributions {es-pull}76896[#76896] (issue: {es-issue}65109[#65109])

Security::
* Remove `kibana_dashboard_only_user` reserved role {es-pull}76507[#76507]


[[enhancement-8.0.0-alpha2]]
[float]
=== Enhancements

Authentication::
* Autogenerate and print elastic password on startup {es-pull}77291[#77291]
* Enroll Kibana API uses Service Accounts {es-pull}76370[#76370]
* Add `reset-kibana-system-user` tool {es-pull}77322[#77322]

ILM+SLM::
* Allow for setting the total shards per node in the Allocate ILM action {es-pull}76794[#76794] (issue: {es-issue}76775[#76775])

Infra/Core::
* Retain reference to stdout for exceptional cases {es-pull}77460[#77460]

Ingest::
* Add support for `_meta` field to ingest pipelines {es-pull}76381[#76381]

Machine Learning::
* Adding new PUT trained model vocabulary endpoint {es-pull}77387[#77387]
* Creating new PUT model definition part API {es-pull}76987[#76987]

Network::
* Enable LZ4 transport compression by default {es-pull}76326[#76326] (issue: {es-issue}73497[#73497])

Search::
* [REST API Compatibility] Nested path and filter sort options {es-pull}76022[#76022] (issues: {es-issue}42809[#42809], {es-issue}51816[#51816])
* [REST API Compatibility] `CommonTermsQuery` and `cutoff_frequency` parameter {es-pull}75896[#75896] (issues: {es-issue}42654[#42654], {es-issue}51816[#51816])
* [REST API Compatibility] Allow first empty line for `_msearch` {es-pull}75886[#75886] (issues: {es-issue}41011[#41011], {es-issue}51816[#51816])


Security::
* Adding base `RestHandler` class for Enrollment APIs {es-pull}76564[#76564] (issue: {es-issue}76097[#76097])
* Generate and store password hash for elastic user {es-pull}76276[#76276] (issue: {es-issue}75310[#75310])
* Set elastic password and generate enrollment token {es-pull}75816[#75816] (issue: {es-issue}75310[#75310])
* Add `elasticsearch-enroll-node` tool {es-pull}77292[#77292]
* Default hasher to `PBKDF2_STRETCH` on FIPS mode {es-pull}76274[#76274]


[[bug-8.0.0-alpha2]]
[float]
=== Bug Fixes

ILM+SLM::
* Ensuring that the `ShrinkAction` does not hang if total shards per node is too low {es-pull}76732[#76732] (issue: {es-issue}44070[#44070])


Security::
* Allow access to restricted system indices for reserved system roles {es-pull}76845[#76845]

