Key:

JDK-X  - https://bugs.openjdk.java.net/browse/JDK-X
CVE-XXXX-YYYY: https://cve.mitre.org/cgi-bin/cvename.cgi?name=XXXX-YYYY
JEP-XYZ: https://openjdk.org/jeps/XYZ

New in release OpenJDK 26.0.1 (2026-04-21):
===========================================
* Changes
  - JDK-8348014: Enhance certificate processing
  - JDK-8364373: Transform Affine transformations
  - JDK-8364465: Enhance behavior of some intrinsics
  - JDK-8367463: Improved Arena allocations
  - JDK-8369575: Enhance crypto algorithm support
  - JDK-8370489: Some compiler tests miss the @key randomness
  - JDK-8370529: Enhance Path Factories Redux
  - JDK-8370615: Improve Kerberos credentialing
  - JDK-8370986: Enhance Zip file reading
  - JDK-8370995: Enhance ZipFile usage
  - JDK-8371830: Enhance certificate chain validation
  - JDK-8371935: Enhance key generation
  - JDK-8372589: VM crashes on init when NonNMethodCodeHeapSize is set too small and UseTransparentHugePages is enabled
  - JDK-8372592: Adjust logger usage in java2d tests
  - JDK-8372661: Add a null-safe static factory method to "jdk.test.lib.net.SimpleSSLContext"
  - JDK-8373290: Update FreeType to 2.14.1
  - JDK-8373476: (tz) Update Timezone Data to 2025c
  - JDK-8373520: Bump update version for OpenJDK: jdk26u to 26.0.1
  - JDK-8373625: CPUTimeCounters creates a total counter for unsupported GCs
  - JDK-8373632: Some sound tests failing in CI due to lack of sound key
  - JDK-8373793: TestDynamicStore.java '/manual' disables use of '/timeout'
  - JDK-8374434: Several JShell tests report JUnit discovery warnings
  - JDK-8374557: Enhance TLS connection handling
  - JDK-8374644: Regression in GZIPInputStream performance after JDK-7036144
  - JDK-8375063: Update Libpng to 1.6.54
  - JDK-8375094: RISC-V: Fix client builds after JDK-8368732
  - JDK-8375530: PPC64: incorrect quick verify_method_data_pointer check causes poor performance in debug build
  - JDK-8375657: RISC-V: Need to check size in SharedRuntime::is_wide_vector
  - JDK-8375994: Change milestone to fcs for all releases
  - JDK-8377905: gcc.md included with every build
  - JDK-8378623: Use unique font names in FormatCharAdvanceTest
  - JDK-8379035: (tz) Update Timezone Data to 2026a
  - JDK-8379158: Update FreeType to 2.14.2

New in release OpenJDK 25.0.0+32 (2025-03-17):
===========================================
 - JEP-500: 	Prepare to Make Final Mean Final
 - JEP-504: 	Remove the Applet API
 - JEP-516: 	Ahead-of-Time Object Caching with Any GC
 - JEP-517: 	HTTP/3 for the HTTP Client API
 - JEP-522: 	G1 GC: Improve Throughput by Reducing Synchronization
 - JEP-524: 	PEM Encodings of Cryptographic Objects (Second Preview)
 - JEP-525: 	Structured Concurrency (Sixth Preview)
 - JEP-526: 	Lazy Constants (Second Preview)
 - JEP-529: 	Vector API (Eleventh Incubator)
 - JEP-530: 	Primitive Types in Patterns, instanceof, and switch (Fourth Preview)

https://openjdk.org/projects/jdk/26/
https://openjdk.org/projects/jdk/25/
In case yo uare moving directly from jdk25
