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# Apache Hadoop Changelog

## Release 3.4.2 - 2025-08-20


### IMPORTANT ISSUES:

| JIRA | Summary | Priority | Component | Reporter | Contributor |
|:---- |:---- | :--- |:---- |:---- |:---- |
| [HADOOP-19107](https://issues.apache.org/jira/browse/HADOOP-19107) | Drop support for HBase v1 timeline service & upgrade HBase v2 |  Major | . | Ayush Saxena | Ayush Saxena |


### NEW FEATURES:

| JIRA | Summary | Priority | Component | Reporter | Contributor |
|:---- |:---- | :--- |:---- |:---- |:---- |
| [HADOOP-19261](https://issues.apache.org/jira/browse/HADOOP-19261) | Support force close a DomainSocket for server service |  Major | . | Sammi Chen | Sammi Chen |
| [HDFS-17657](https://issues.apache.org/jira/browse/HDFS-17657) | The balancer service supports httpserver. |  Minor | balancer & mover | Zhaobo Huang | Zhaobo Huang |
| [HADOOP-19353](https://issues.apache.org/jira/browse/HADOOP-19353) | Über-jira: S3A Hadoop 3.4.2 features |  Major | fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-19363](https://issues.apache.org/jira/browse/HADOOP-19363) | S3A: Support analytics-accelerator-s3 input streams for parquet read performance |  Major | fs/s3 | Ahmar Suhail | Ahmar Suhail |


### IMPROVEMENTS:

| JIRA | Summary | Priority | Component | Reporter | Contributor |
|:---- |:---- | :--- |:---- |:---- |:---- |
| [HADOOP-19195](https://issues.apache.org/jira/browse/HADOOP-19195) | Upgrade aws sdk v2 to 2.25.53 |  Major | fs/s3 | Harshit Gupta | Harshit Gupta |
| [YARN-11711](https://issues.apache.org/jira/browse/YARN-11711) | Improve ServiceScheduler Code |  Minor | scheduler, yarn | Shilun Fan | Shilun Fan |
| [HADOOP-15760](https://issues.apache.org/jira/browse/HADOOP-15760) | Upgrade commons-collections to commons-collections4 |  Major | . | David Mollitor | Nihal Jain |
| [HADOOP-19281](https://issues.apache.org/jira/browse/HADOOP-19281) | MetricsSystemImpl should not print INFO message in CLI |  Major | metrics | Tsz-wo Sze | Sarveksha Yeshavantha Raju |
| [YARN-11734](https://issues.apache.org/jira/browse/YARN-11734) | Fix spotbugs in ServiceScheduler#load |  Major | yarn | Hualong Zhang | Hualong Zhang |
| [HADOOP-19349](https://issues.apache.org/jira/browse/HADOOP-19349) | S3A : Improve Client Side Encryption Documentation |  Major | documentation, fs/s3 | Syed Shameerur Rahman | Syed Shameerur Rahman |
| [HADOOP-19357](https://issues.apache.org/jira/browse/HADOOP-19357) | ABFS: Optimizations for Retry Handling and Throttling |  Minor | fs/azure | Manika Joshi | Manika Joshi |
| [HADOOP-19366](https://issues.apache.org/jira/browse/HADOOP-19366) | Install OpenJDk 17 in default ubuntu build container |  Major | build | Cheng Pan | Cheng Pan |
| [HADOOP-19371](https://issues.apache.org/jira/browse/HADOOP-19371) | JVM GC Metrics supports ZGC pause time and count |  Minor | common | dzcxzl | dzcxzl |
| [HDFS-17711](https://issues.apache.org/jira/browse/HDFS-17711) | Change fsimage loading progress percentage discontinuous to continuous |  Minor | . | Sungdong Kim | Sungdong Kim |
| [HADOOP-19389](https://issues.apache.org/jira/browse/HADOOP-19389) | Optimize shell -text command I/O with multi-byte read. |  Minor | command, fs, fs/azure, fs/gcs, fs/s3 | Chris Nauroth | Chris Nauroth |
| [HADOOP-19401](https://issues.apache.org/jira/browse/HADOOP-19401) | Improve error message when OS can't identify the current user. |  Major | security | Chris Nauroth | Chris Nauroth |
| [HADOOP-19375](https://issues.apache.org/jira/browse/HADOOP-19375) | Organize JDK version-specific code in IDEA friendly approach |  Major | . | Cheng Pan | Cheng Pan |
| [HADOOP-19377](https://issues.apache.org/jira/browse/HADOOP-19377) | Avoid initializing useless HashMap in protocolImplMapArray. |  Minor | common | farmmamba | farmmamba |
| [HADOOP-19086](https://issues.apache.org/jira/browse/HADOOP-19086) | Update commons-logging to 1.3.0 |  Minor | build | Steve Loughran | Steve Loughran |
| [HDFS-17754](https://issues.apache.org/jira/browse/HDFS-17754) | Add uriparser2 to notices |  Minor | hdfs-client | Chris Nauroth | Chris Nauroth |
| [HADOOP-19400](https://issues.apache.org/jira/browse/HADOOP-19400) | Expand specification and contract test coverage for InputStream reads. |  Major | documentation, fs, test | Chris Nauroth | Chris Nauroth |
| [HADOOP-19225](https://issues.apache.org/jira/browse/HADOOP-19225) | Upgrade Jetty to 9.4.57.v20241219 due to CVE-2024-8184 and other CVEs |  Major | build | Palakur Eshwitha Sai | PJ Fanning |
| [HADOOP-18991](https://issues.apache.org/jira/browse/HADOOP-18991) | Remove commons-beanutils dependency from Hadoop 3 |  Major | common | Istvan Toth | Istvan Toth |
| [HADOOP-19546](https://issues.apache.org/jira/browse/HADOOP-19546) | Include cipher feature for HttpServer2 and SSLFactory |  Major | hadoop-common, hdfs, yarn | Bence Kosztolnik | Bence Kosztolnik |
| [HDFS-17226](https://issues.apache.org/jira/browse/HDFS-17226) | Building native libraries fails on Fedora 38 |  Major | libhdfs++, native | Kengo Seki | Kengo Seki |
| [HADOOP-19523](https://issues.apache.org/jira/browse/HADOOP-19523) | Upgrade to hadoop-thirdparty 1.4.0 |  Major | build | Steve Loughran | Steve Loughran |
| [HDFS-17637](https://issues.apache.org/jira/browse/HDFS-17637) | Fix spotbugs in HttpFSFileSystem#getXAttr |  Major | httpfs | Hualong Zhang | Hualong Zhang |
| [HADOOP-19384](https://issues.apache.org/jira/browse/HADOOP-19384) | S3A: Add support for ProfileCredentialsProvider |  Minor | fs/s3 | Venkatasubrahmanian Narayanan | Venkatasubrahmanian Narayanan |
| [HADOOP-19143](https://issues.apache.org/jira/browse/HADOOP-19143) | Upgrade commons-cli to 1.6.0. |  Major | build, common | Shilun Fan | Shilun Fan |


### BUG FIXES:

| JIRA | Summary | Priority | Component | Reporter | Contributor |
|:---- |:---- | :--- |:---- |:---- |:---- |
| [HDFS-17376](https://issues.apache.org/jira/browse/HDFS-17376) | Distcp creates Factor 1 replication file on target if Source is EC |  Major | distcp | Sadanand Shenoy | Sadanand Shenoy |
| [HDFS-16084](https://issues.apache.org/jira/browse/HDFS-16084) | getJNIEnv() returns invalid pointer when called twice after getGlobalJNIEnv() failed |  Major | libhdfs | Antoine Pitrou | kevin cai |
| [HADOOP-19248](https://issues.apache.org/jira/browse/HADOOP-19248) | Protobuf code generate and replace should happen together |  Major | common | Cheng Pan | Cheng Pan |
| [HADOOP-19250](https://issues.apache.org/jira/browse/HADOOP-19250) | Fix test TestServiceInterruptHandling.testRegisterAndRaise |  Major | test | Chenyu Zheng | Chenyu Zheng |
| [HADOOP-19272](https://issues.apache.org/jira/browse/HADOOP-19272) | S3A: AWS SDK 2.25.53 warnings logged about transfer manager not using CRT client |  Major | fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-19164](https://issues.apache.org/jira/browse/HADOOP-19164) | Hadoop CLI MiniCluster is broken |  Major | . | Ayush Saxena | Ayush Saxena |
| [HADOOP-19290](https://issues.apache.org/jira/browse/HADOOP-19290) | Operating on / in ChecksumFileSystem throws NPE |  Major | . | Ayush Saxena | Ayush Saxena |
| [HADOOP-19280](https://issues.apache.org/jira/browse/HADOOP-19280) | ABFS: Initialize ABFS client timer only when metric collection is enabled |  Major | fs/azure | Manish Bhatt | Manish Bhatt |
| [YARN-11732](https://issues.apache.org/jira/browse/YARN-11732) | Potential NPE when calling SchedulerNode#reservedContainer for CapacityScheduler |  Major | capacityscheduler | Tao Yang | Tao Yang |
| [HADOOP-19309](https://issues.apache.org/jira/browse/HADOOP-19309) | S3A CopyFromLocalFile operation fails when the source file does not contain file scheme. |  Major | fs/s3 | Syed Shameerur Rahman | Syed Shameerur Rahman |
| [HADOOP-18583](https://issues.apache.org/jira/browse/HADOOP-18583) | hadoop checknative fails to load openssl 3.x |  Major | native | Sebastian Klemke | Sebastian Klemke |
| [HADOOP-19106](https://issues.apache.org/jira/browse/HADOOP-19106) | [ABFS] All tests of. ITestAzureBlobFileSystemAuthorization fails with NPE |  Major | fs/azure | Mukund Thakur | Anuj Modi |
| [HADOOP-19360](https://issues.apache.org/jira/browse/HADOOP-19360) | Disable releases for apache.snapshots repo |  Major | build | Attila Doroszlai | Attila Doroszlai |
| [HDFS-17706](https://issues.apache.org/jira/browse/HDFS-17706) | TestBlockTokenWithDFSStriped fails due to closed streams |  Minor | . | Felix N | Felix N |
| [YARN-11759](https://issues.apache.org/jira/browse/YARN-11759) | Fix log statement in RMAppImpl#processNodeUpdate |  Major | resourcemanager | yang yang | yang yang |
| [HDFS-17724](https://issues.apache.org/jira/browse/HDFS-17724) | Set recover.lease.on.close.exception as an instance member in the DfsClientConf.java |  Minor | hadoop-client | Abhey Rana | Abhey Rana |
| [YARN-11745](https://issues.apache.org/jira/browse/YARN-11745) | YARN ResourceManager throws java.lang.IllegalArgumentExceptio: Comparison method violates its general contract! |  Major | yarn | chhinlinghean | chhinlinghean |
| [YARN-11785](https://issues.apache.org/jira/browse/YARN-11785) | Race condition in QueueMetrics due to non-thread-safe HashMap causes MetricsException |  Major | capacityscheduler | Tao Yang | Tao Yang |
| [YARN-11776](https://issues.apache.org/jira/browse/YARN-11776) | Handle NPE in the RMDelegationTokenIdentifier if localServiceAddress is null |  Major | resourcemanager | Abhey Rana | Abhey Rana |
| [HDFS-17759](https://issues.apache.org/jira/browse/HDFS-17759) | Explicitly depend on jackson-core in hadoop-hdfs |  Critical | hdfs | Istvan Toth | Istvan Toth |
| [HADOOP-19488](https://issues.apache.org/jira/browse/HADOOP-19488) | RunJar throws UnsupportedOperationException on Windows |  Major | hadoop-common | Sangjin Lee | Sangjin Lee |
| [HDFS-16644](https://issues.apache.org/jira/browse/HDFS-16644) | java.io.IOException Invalid token in javax.security.sasl.qop |  Major | . | Walter Su | Zilong Zhu |
| [HDFS-15230](https://issues.apache.org/jira/browse/HDFS-15230) | Sanity check should not assume key base name can be derived from version name |  Major | . | Wei-Chiu Chuang | Wei-Chiu Chuang |
| [YARN-11810](https://issues.apache.org/jira/browse/YARN-11810) | Fix SQL script in SQLServer/FederationStateStoreTables.sql |  Major | federation | Peter Szucs | Peter Szucs |
| [HDFS-17768](https://issues.apache.org/jira/browse/HDFS-17768) | Observer namenode network delay causing empty block location for getBatchedListing |  Major | namenode | Dimas Shidqi Parikesit | Dimas Shidqi Parikesit |
| [HADOOP-19532](https://issues.apache.org/jira/browse/HADOOP-19532) | Update commons-lang3 to 3.17.0 |  Major | . | Istvan Toth | Istvan Toth |
| [HADOOP-19551](https://issues.apache.org/jira/browse/HADOOP-19551) | Fix compilation error of native libraries on newer GCC |  Major | native | Masatake Iwasaki | Masatake Iwasaki |
| [YARN-11801](https://issues.apache.org/jira/browse/YARN-11801) | NPE in FifoCandidatesSelector.selectCandidates when preempting resources for an auto-created queue without child queues |  Major | yarn | Susheel Gupta | Susheel Gupta |
| [HADOOP-19554](https://issues.apache.org/jira/browse/HADOOP-19554) | LocalDirAllocator still doesn't always recover from directory tree deletion |  Major | common | Steve Loughran | Steve Loughran |
| [YARN-11713](https://issues.apache.org/jira/browse/YARN-11713) | yarn-ui build fails in ARM docker in MacOs phantomjs error |  Blocker | yarn-ui-v2 | Mukund Thakur | Masatake Iwasaki |
| [YARN-11712](https://issues.apache.org/jira/browse/YARN-11712) | Yarn-ui build fails in ARM docker looking for python2. |  Blocker | yarn-ui-v2 | Mukund Thakur | Masatake Iwasaki |
| [HADOOP-19576](https://issues.apache.org/jira/browse/HADOOP-19576) | Insert Overwrite Jobs With MagicCommitter Fails On S3 Express Storage |  Major | . | Syed Shameerur Rahman | Syed Shameerur Rahman |
| [HADOOP-19573](https://issues.apache.org/jira/browse/HADOOP-19573) | S3A: ITestS3AConfiguration.testDirectoryAllocatorDefval() failing |  Minor | fs/s3, test | Steve Loughran | Steve Loughran |


### TESTS:

| JIRA | Summary | Priority | Component | Reporter | Contributor |
|:---- |:---- | :--- |:---- |:---- |:---- |
| [YARN-11744](https://issues.apache.org/jira/browse/YARN-11744) | Tackle flaky test testGetRunningContainersToKill |  Major | test, yarn-service | Cheng Pan | Cheng Pan |
| [YARN-11790](https://issues.apache.org/jira/browse/YARN-11790) | TestAmFilter#testProxyUpdate fails in some networks |  Minor | test, webproxy | Chris Nauroth | Chris Nauroth |


### SUB-TASKS:

| JIRA | Summary | Priority | Component | Reporter | Contributor |
|:---- |:---- | :--- |:---- |:---- |:---- |
| [HADOOP-18325](https://issues.apache.org/jira/browse/HADOOP-18325) | ABFS: Add correlated metric support for ABFS operations |  Major | fs/azure | Anmol Asrani | Anmol Asrani |
| [HADOOP-19187](https://issues.apache.org/jira/browse/HADOOP-19187) | ABFS: [FnsOverBlob] Making AbfsClient Abstract for supporting both DFS and Blob Endpoint |  Major | fs/azure | Anuj Modi | Anuj Modi |
| [HADOOP-19262](https://issues.apache.org/jira/browse/HADOOP-19262) | [JDK17] Upgade wildfly-openssl:1.1.3.Final to 2.1.4.Final+ |  Major | fs/azure, fs/s3 | Steve Loughran | Saikat Roy |
| [HADOOP-19284](https://issues.apache.org/jira/browse/HADOOP-19284) | ABFS: Allow "fs.azure.account.hns.enabled" to be set as Account Specific Config |  Major | fs/azure | Descifrado | Anuj Modi |
| [HADOOP-19219](https://issues.apache.org/jira/browse/HADOOP-19219) | Resolve Certificate error in Hadoop-auth tests. |  Major | build, common | Muskan Mishra | Muskan Mishra |
| [HADOOP-19296](https://issues.apache.org/jira/browse/HADOOP-19296) | [JDK17] Upgrade maven-war-plugin to 3.4.0 |  Major | build, common | Shilun Fan | Shilun Fan |
| [HADOOP-19286](https://issues.apache.org/jira/browse/HADOOP-19286) | Support S3A cross region access when S3 region/endpoint is set |  Major | fs/s3 | Syed Shameerur Rahman | Syed Shameerur Rahman |
| [HADOOP-19310](https://issues.apache.org/jira/browse/HADOOP-19310) | [JDK17] Add JPMS options required by Java 17+ |  Major | build, common | Cheng Pan | Cheng Pan |
| [HADOOP-19297](https://issues.apache.org/jira/browse/HADOOP-19297) | [JDK17] Upgrade maven.plugin-tools.version to 3.10.2 |  Major | build, common | Shilun Fan | Shilun Fan |
| [HADOOP-19330](https://issues.apache.org/jira/browse/HADOOP-19330) | S3A: Add LeakReporter; use in S3AInputStream |  Major | fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-18708](https://issues.apache.org/jira/browse/HADOOP-18708) | AWS SDK V2 - Implement CSE |  Major | fs/s3 | Ahmar Suhail | Syed Shameerur Rahman |
| [HADOOP-19317](https://issues.apache.org/jira/browse/HADOOP-19317) | S3A: fs.s3a.connection.expect.continue controls 100 CONTINUE behavior |  Major | fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-18960](https://issues.apache.org/jira/browse/HADOOP-18960) | ABFS contract-tests with Hadoop-Commons intermittently failing |  Minor | fs/azure | Pranav Saxena | Anuj Modi |
| [HADOOP-19336](https://issues.apache.org/jira/browse/HADOOP-19336) | S3A: Test failures after CSE support added |  Major | fs/s3 | Steve Loughran | Syed Shameerur Rahman |
| [HADOOP-19226](https://issues.apache.org/jira/browse/HADOOP-19226) | ABFS: [FnsOverBlob] Implementing Azure Rest APIs on Blob Endpoint for AbfsBlobClient |  Major | fs/azure | Anuj Modi | Anuj Modi |
| [HADOOP-19367](https://issues.apache.org/jira/browse/HADOOP-19367) | Fix setting final field value on Java 17 |  Major | test | Cheng Pan | Cheng Pan |
| [HADOOP-19207](https://issues.apache.org/jira/browse/HADOOP-19207) | ABFS: [FnsOverBlob] Response Handling of Blob Endpoint APIs and Metadata APIs |  Major | fs/azure | Anuj Modi | Anuj Modi |
| [HADOOP-19229](https://issues.apache.org/jira/browse/HADOOP-19229) | Vector IO on cloud storage: what is a good minimum seek size? |  Major | fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-19393](https://issues.apache.org/jira/browse/HADOOP-19393) | ABFS: Returning FileAlreadyExists Exception for UnauthorizedBlobOverwrite Rename Errors |  Minor | fs/azure | Manika Joshi | Manika Joshi |
| [HADOOP-19232](https://issues.apache.org/jira/browse/HADOOP-19232) | ABFS: [FnsOverBlob] Implementing Ingress Support with various Fallback Handling |  Major | fs/azure | Anuj Modi | Anmol Asrani |
| [HADOOP-19233](https://issues.apache.org/jira/browse/HADOOP-19233) | ABFS: [FnsOverBlob] Implementing Rename and Delete APIs over Blob Endpoint |  Major | fs/azure | Anuj Modi | Manish Bhatt |
| [HADOOP-19404](https://issues.apache.org/jira/browse/HADOOP-19404) | ABFS: [FNS Over Blob] Update documentation for FNS Blob Onboard |  Major | fs/azure | Anmol Asrani | Anmol Asrani |
| [HADOOP-19448](https://issues.apache.org/jira/browse/HADOOP-19448) | ABFS: [FnsOverBlob][Optimizations] Reduce Network Calls In Create and Mkdir Flow |  Major | fs/azure | Anuj Modi | Anmol Asrani |
| [HADOOP-19354](https://issues.apache.org/jira/browse/HADOOP-19354) | S3A: InputStreams to be created by factory under S3AStore |  Major | fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-19467](https://issues.apache.org/jira/browse/HADOOP-19467) | HADOOP-19467: [ABFS][FnsOverBlob] Fixing Config Name in Documenatation |  Major | fs/azure | Anuj Modi | Anuj Modi |
| [HADOOP-19443](https://issues.apache.org/jira/browse/HADOOP-19443) | ABFS: [FnsOverBlob][Tests] Update Test Scripts to Run Tests with Blob Endpoint |  Major | fs/azure | Anuj Modi | Anuj Modi |
| [HADOOP-19445](https://issues.apache.org/jira/browse/HADOOP-19445) | ABFS: [FnsOverBlob][Tests] Add Tests For Negative Scenarios Identified for Rename Operation |  Major | fs/azure | Anuj Modi | Manish Bhatt |
| [HADOOP-19185](https://issues.apache.org/jira/browse/HADOOP-19185) | Improve ABFS metric integration with iOStatistics |  Major | fs/azure | Steve Loughran | Manish Bhatt |
| [HADOOP-19348](https://issues.apache.org/jira/browse/HADOOP-19348) | S3A: Add initial support for analytics-accelerator-s3 |  Major | fs/s3 | Ahmar Suhail | Ahmar Suhail |
| [HADOOP-19303](https://issues.apache.org/jira/browse/HADOOP-19303) | VectorIO API to support releasing buffers on failure |  Major | fs, fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-19446](https://issues.apache.org/jira/browse/HADOOP-19446) | ABFS: [FnsOverBlob][Tests] Add Tests For Negative Scenarios Identified for Delete Operation |  Major | fs/azure | Anuj Modi | Manika Joshi |
| [HADOOP-15224](https://issues.apache.org/jira/browse/HADOOP-15224) | S3A: Add option to set checksum on S3 objects |  Minor | fs/s3 | Steve Loughran | Raphael Azzolini |
| [HADOOP-19455](https://issues.apache.org/jira/browse/HADOOP-19455) | HADOOP-19455. S3A: Enable logging of SDK client metrics |  Minor | fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-19512](https://issues.apache.org/jira/browse/HADOOP-19512) | S3A: Test failures during AWS SDK upgrade |  Minor | fs/s3, test | Steve Loughran | Steve Loughran |
| [HADOOP-19494](https://issues.apache.org/jira/browse/HADOOP-19494) | ABFS: Fix Case Sensitivity Issue for hdi\_isfolder metadata |  Major | fs/azure | Manish Bhatt | Manish Bhatt |
| [HADOOP-19531](https://issues.apache.org/jira/browse/HADOOP-19531) | ABFS: [FnsOverBlob] Streaming List Path Result Should Happen Inside Retry Loop |  Major | fs/azure | Anuj Modi | Anuj Modi |
| [HADOOP-19474](https://issues.apache.org/jira/browse/HADOOP-19474) | ABFS: [FnsOverBlob] Listing Optimizations to avoid multiple iteration over list response. |  Major | fs/azure | Anuj Modi | Anuj Modi |
| [HADOOP-19444](https://issues.apache.org/jira/browse/HADOOP-19444) | ABFS: [FnsOverBlob][Tests] Add Tests For Negative Scenarios Identified for Ingress Operations |  Major | fs/azure | Anuj Modi | Anmol Asrani |
| [HADOOP-19515](https://issues.apache.org/jira/browse/HADOOP-19515) | ABFS: [FnsOverBlob] Updating Documentations of Hadoop Drivers for Azure |  Minor | fs/azure | Manika Joshi | Manika Joshi |
| [HADOOP-19256](https://issues.apache.org/jira/browse/HADOOP-19256) | S3A: Support S3 Conditional Writes |  Major | fs/s3 | Ahmar Suhail | Saikat Roy |
| [HADOOP-19543](https://issues.apache.org/jira/browse/HADOOP-19543) | ABFS: [FnsOverBlob] Remove Duplicates from Blob Endpoint Listing Across Iterations |  Blocker | fs/azure | Anuj Modi | Anuj Modi |
| [HADOOP-19522](https://issues.apache.org/jira/browse/HADOOP-19522) | ABFS: [FnsOverBlob] Rename Recovery Should Succeed When Marker File Exists with Destination Directory |  Blocker | fs/azure | Manish Bhatt | Manish Bhatt |
| [HADOOP-19518](https://issues.apache.org/jira/browse/HADOOP-19518) | ABFS: [FnsOverBlob] WASB to ABFS Migration Config Support Script |  Major | fs/azure | Manika Joshi | Manika Joshi |
| [HADOOP-19497](https://issues.apache.org/jira/browse/HADOOP-19497) | [ABFS] Enable rename and create recovery from client transaction id over DFS endpoint |  Major | fs/azure | Manish Bhatt | Manish Bhatt |
| [HADOOP-19471](https://issues.apache.org/jira/browse/HADOOP-19471) | ABFS: [FnsOverBlob] Support Fixed SAS token at container level |  Major | fs/azure | Manika Joshi | Manika Joshi |
| [HADOOP-19234](https://issues.apache.org/jira/browse/HADOOP-19234) | ABFS: [FnsOverBlob] Adding Integration Tests for Special Scenarios in Blob Endpoint |  Major | fs/azure | Anuj Modi | Anuj Modi |
| [HADOOP-19527](https://issues.apache.org/jira/browse/HADOOP-19527) | S3A: testVectoredReadAfterNormalRead() failing with 412 response from S3 |  Blocker | fs/s3 | Steve Loughran | Ahmar Suhail |
| [HADOOP-19485](https://issues.apache.org/jira/browse/HADOOP-19485) | S3A: Upgrade AWS V2 SDK to 2.29.52 |  Major | build, fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-19406](https://issues.apache.org/jira/browse/HADOOP-19406) | ABFS: [FNS Over Blob] Support User Delegation SAS for FNS Blob |  Major | fs/azure | Anmol Asrani | Manika Joshi |
| [HADOOP-19557](https://issues.apache.org/jira/browse/HADOOP-19557) | S3A: S3ABlockOutputStream to never log/reject hflush(): calls |  Critical | fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-19480](https://issues.apache.org/jira/browse/HADOOP-19480) | S3A Analytics-Accelerator: Upgrade AAL to 1.0.0 |  Major | fs/s3 | Ahmar Suhail |  |
| [HADOOP-19542](https://issues.apache.org/jira/browse/HADOOP-19542) | S3A Analytics-Accelerator: AAL stream factory not being closed |  Blocker | fs/s3 | Ahmar Suhail | Ahmar Suhail |
| [HADOOP-19567](https://issues.apache.org/jira/browse/HADOOP-19567) | S3A: error stack traces printed on analytics stream factory close |  Major | fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-19572](https://issues.apache.org/jira/browse/HADOOP-19572) | ABFS: [FnsOverBlob] Empty Page Issue on Subsequent ListBlob call |  Major | fs/azure | Anuj Modi | Anuj Modi |
| [HADOOP-19548](https://issues.apache.org/jira/browse/HADOOP-19548) | [ABFS] Fix logging in FSDataInputStream buffersize as that is not used and confusing the customer |  Major | fs/azure, hadoop-common | Mukund Thakur | Manika Joshi |
| [HADOOP-19580](https://issues.apache.org/jira/browse/HADOOP-19580) | ABFS: [FnsOverBlob][BugFix] IsNonEmptyDirectory Check should loop on listing using updated continuation token |  Critical | fs/azure | Anuj Modi | Anuj Modi |
| [HADOOP-18940](https://issues.apache.org/jira/browse/HADOOP-18940) | ABFS: Remove commons IOUtils.close() from AbfsOutputStream |  Critical | fs/azure | Steve Loughran | Mehakmeet Singh |
| [HADOOP-19295](https://issues.apache.org/jira/browse/HADOOP-19295) | S3A: fs.s3a.connection.request.timeout too low for large uploads over slow links |  Major | fs/s3 | Steve Loughran | Steve Loughran |
| [HADOOP-19575](https://issues.apache.org/jira/browse/HADOOP-19575) | ABFS: [FNSOverBlob] Add Distinct String In User Agent to Get Telemetry for FNS-Blob |  Major | fs/azure | Manika Joshi | Manika Joshi |
| [HADOOP-19627](https://issues.apache.org/jira/browse/HADOOP-19627) | S3A: testIfMatchOverwriteWithOutdatedEtag() fails when not using SSE-KMS |  Major | fs/s3 | Ahmar Suhail | Ahmar Suhail |
| [HADOOP-18296](https://issues.apache.org/jira/browse/HADOOP-18296) | Memory fragmentation in ChecksumFileSystem Vectored IO implementation. |  Minor | common | Mukund Thakur | Steve Loughran |
| [HADOOP-19626](https://issues.apache.org/jira/browse/HADOOP-19626) | S3A: AAL - Update to version 1.2.1 |  Major | fs/s3 | Ahmar Suhail | Ahmar Suhail |


### OTHER:

| JIRA | Summary | Priority | Component | Reporter | Contributor |
|:---- |:---- | :--- |:---- |:---- |:---- |
| [HADOOP-18568](https://issues.apache.org/jira/browse/HADOOP-18568) | Magic Committer optional clean up |  Minor | fs/s3 | André F. | Sayed Mohammad Hossein Torabi |
| [HADOOP-19123](https://issues.apache.org/jira/browse/HADOOP-19123) | Update commons-configuration2 to 2.10.1 due to CVE |  Major | build | PJ Fanning | PJ Fanning |
| [HADOOP-19315](https://issues.apache.org/jira/browse/HADOOP-19315) | Bump avro from 1.9.2 to 1.11.4 |  Major | build | Dominik Diedrich | Dominik Diedrich |
| [HADOOP-19335](https://issues.apache.org/jira/browse/HADOOP-19335) | Bump netty to 4.1.116 due to CVE-2024-47535 |  Major | . | PJ Fanning | PJ Fanning |
| [HADOOP-19380](https://issues.apache.org/jira/browse/HADOOP-19380) | Update the year to 2025 |  Major | . | Ayush Saxena | Ayush Saxena |
| [HDFS-17080](https://issues.apache.org/jira/browse/HDFS-17080) | Fix ec connection leak (GitHub PR#5807) |  Major | . | Wei-Chiu Chuang | Wei-Chiu Chuang |
| [HADOOP-19456](https://issues.apache.org/jira/browse/HADOOP-19456) | Upgrade kafka to 3.9.0 to fix CVE-2024-31141 |  Major | build | Palakur Eshwitha Sai | Palakur Eshwitha Sai |
| [HADOOP-19465](https://issues.apache.org/jira/browse/HADOOP-19465) | upgrade to netty 4.1.118 due to CVE-2025-24970 |  Major | build | PJ Fanning | PJ Fanning |
| [HADOOP-19311](https://issues.apache.org/jira/browse/HADOOP-19311) | [ABFS] Implement Backoff and Read Footer metrics using IOStatistics Class |  Major | fs/azure | Manish Bhatt | Manish Bhatt |
| [HADOOP-19383](https://issues.apache.org/jira/browse/HADOOP-19383) | upgrade Mina 2.0.27 due to CVE-2024-52046 |  Major | . | PJ Fanning | PJ Fanning |
| [HADOOP-19450](https://issues.apache.org/jira/browse/HADOOP-19450) | [ABFS] Rename/Create path idempotency client-level resolution |  Major | fs/azure | Manish Bhatt | Manish Bhatt |
| [HADOOP-19634](https://issues.apache.org/jira/browse/HADOOP-19634) | acknowledge Guava license on LimitInputStream |  Major | . | PJ Fanning | PJ Fanning |