Changelog for 8.17.8 (#8647)

Author: pierrehilbert

changelog/8.17.8.asciidoc

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+// begin 8.17.8 relnotes
+
+[[release-notes-8.17.8]]
+==  8.17.8
+
+Review important information about the  8.17.8 release.
+
+
+
+
+
+
+
+
+
+[discrete]
+[[new-features-8.17.8]]
+=== New features
+
+The 8.17.8 release adds the following new and notable features.
+
+
+elastic-agent::
+
+* Add Cumulativetodeltaprocessor To Edot Collector. {elastic-agent-pull}https://github.com/elastic/elastic-agent/pull/8372[#https://github.com/elastic/elastic-agent/pull/8372] 
+
+
+
+
+
+
+[discrete]
+[[bug-fixes-8.17.8]]
+=== Bug fixes
+
+
+elastic-agent::
+
+* Address A Race Condition That Can Occur In Agent Diagnostics If Log Rotation Runs While Logs Are Being Zipped. {elastic-agent-pull}https://github.com/elastic/elastic-agent/pull/8215[#https://github.com/elastic/elastic-agent/pull/8215] 
+* Use Paths.tempdir For Diagnostics Actions. {elastic-agent-pull}https://github.com/elastic/elastic-agent/pull/8472[#https://github.com/elastic/elastic-agent/pull/8472] 
+* Use Debian 11 To Build Linux/Arm To Match Linux/Amd64. Upgrades Linux/Arm64's Statically Linked Glibc From Version 2.28 To 2.31. {elastic-agent-pull}https://github.com/elastic/elastic-agent/pull/8497[#https://github.com/elastic/elastic-agent/pull/8497] 
+* Relax File Ownership Check To Allow Admin Re-Enrollment On Windows. {elastic-agent-pull}https://github.com/elastic/elastic-agent/pull/8503[#https://github.com/elastic/elastic-agent/pull/8503] {elastic-agent-issue}https://github.com/elastic/elastic-agent/issues/7794[#https://github.com/elastic/elastic-agent/issues/7794]
+
+// end 8.17.8 relnotes

changelog/8.17.8.yaml

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+version: 8.17.8
+entries:
+    - kind: bug-fix
+      summary: Address a race condition that can occur in Agent diagnostics if log rotation runs while logs are being zipped.
+      description: ""
+      component: elastic-agent
+      pr:
+        - https://github.com/elastic/elastic-agent/pull/8215
+      issue: []
+      timestamp: 1747938268
+      file:
+        name: 1747938268-fix-diag-race-condition.yaml
+        checksum: 25e4883c6751a854d4a2f0897fb83848416c855e
+    - kind: feature
+      summary: add cumulativetodeltaprocessor to EDOT collector.
+      description: ""
+      component: elastic-agent
+      pr:
+        - https://github.com/elastic/elastic-agent/pull/8372
+      issue: []
+      timestamp: 1749176965
+      file:
+        name: 1749176965-add-cumulativetodeltaprocessor.yaml
+        checksum: 6c4bc7565ed8fb801a1b02a01ee085488ae960e8
+    - kind: bug-fix
+      summary: Use paths.TempDir for diagnostics actions.
+      description: ""
+      component: elastic-agent
+      pr:
+        - https://github.com/elastic/elastic-agent/pull/8472
+      issue: []
+      timestamp: 1749742685
+      file:
+        name: 1749742685-Use-paths.TempDir-for-diagnostics-actions.yaml
+        checksum: 1357d25b03d628ff7234a15a51e5dba89459d340
+    - kind: bug-fix
+      summary: Use Debian 11 to build linux/arm to match linux/amd64. Upgrades linux/arm64's statically linked glibc from version 2.28 to 2.31.
+      description: ""
+      component: elastic-agent
+      pr:
+        - https://github.com/elastic/elastic-agent/pull/8497
+      issue: []
+      timestamp: 1749844873
+      file:
+        name: 1749844873-Use-Debian-11-for-linux-arm-to-match-linux-amd64.yaml
+        checksum: ddd1264b76219193cfed89ccc87e65b0144e4074
+    - kind: bug-fix
+      summary: relax file ownership check to allow admin re-enrollment on Windows
+      description: |
+        On Windows, the agent previously enforced a strict file ownership (SID) check during re-enrollment, which prevented legitimate admin users from re-enrolling the agent if the owner did not match. This PR changes the Windows-specific logic to a no-op, allowing any admin to re-enroll the agent. This restores usability for admin users, but reintroduces the risk that privileged re-enrollment can break unprivileged installs. The Unix-specific ownership check remains unchanged.
+      component: elastic-agent
+      pr:
+        - https://github.com/elastic/elastic-agent/pull/8503
+      issue:
+        - https://github.com/elastic/elastic-agent/issues/7794
+      timestamp: 1749923633
+      file:
+        name: 1749923633-Windows-relax-file-ownership-check-for-re-enrollment.yaml
+        checksum: 650d0f58770863722ed75c0b092c4578f420e1fe